Jun 13, 2014
paulkva I'm taking my car in to Rockville tomorrow (well, technically today) for tire rotation and underbody reinforcement. While I'm there I've asked them to look at my AC (and a couple other minor things). I have the buzzing / "bad computer fan" sound (like yobigd20's video way upthread), not the squeak/whine that ken830 posted more recently. And for me it's intermittent. Fortunately I have a very short video of my own, which I just emailed to the service center.�
Jun 13, 2014
nirvanaman I have struggled with this as well. The noise is horrible and there is a bad vibration as well. Passengers have commented on it asking if something is wrong with the car. I recently had the acoustical blanket installed. It hasn't made any difference.�
Jun 14, 2014
scaesare Relatively minimal, yes... the last couple of weeks have been in the mid-80's to low 90's around here. My 65 mile round strip commute, a good portion of which is spent at 70MPH (with occasional excursions above) or so nets me an overall average of around 280Wh/mi. This is with the A/C set at 68 and the fan anywhere from 5-9 typically...
�
Jun 14, 2014
EarlyAdopter Just the acoustic blanket, or blanket plus bracket? I think both are needed to make a difference.�
Jun 14, 2014
shepali When we started to heat up here in the desert a couple months ago, I immediately noticed the loud AC noise. I also felt a vibration through the floor, pedals, and steering wheel. I called the main Tesla number and asked if all of this was normal. They told me it does make noise, but that I should have it looked at, just to be sure. The Scottsdale SC told me that the wires were touching the body of the car, making the vibrations. They said they fixed that an alluded to some insulation. But I don't think it was the SB you guys are all referring to (I'm going to ask though). If it was...then it really hasn't done much of anything. As I drove away from the SC, it was just as loud. The vibration is significantly reduced, but the noise is very loud - particularly in our 110+ temperatures. It doesn't really bother me though. I tell people that it sounds like its going to levitate, and that its part of the rocket ship characteristics of the car. But I agree....its loud for sure.
I didn't connect the dots until reading this thread, but my loaner was a 60 and now that I think about it, it was not nearly as loud as my 85. I wonder if that has anything to do with the extra cooling that may be required for the larger battery?
As for impacting my kw/mile, I haven't really noticed an overall increase in my averages. I keep the AC at 68 or 69 degrees, in full auto mode. At the very beginning of my drive, it does go off the charts (I've even seen up to 1000/mi), but as I cover more miles it quickly returns to my normal ranges. And actually...my normal ranges have been decreasing over the past couple months. I was assuming that its the firmware upgrades, as I don't really feel like I've changed my driving habits.
My average is pretty high compared to others - 355 life to date (8k miles), and it generally runs about that on a daily basis too. I blame that on what my father describes as my 'disproportionately large right foot' :biggrin:
As a side note, I also sat in my very hot garage one day when I got home for about 20 minutes watching the energy usage with the AC going (essentially at full blast on auto). It barely impacted my remaining range, and I don't think it moved the total energy used or kw/mi very much, if at all. I was actually kind of surprised, but happily. As that makes me realize I don't really need to worry about it too much on a long trip.�
Jun 14, 2014
jerry33 That was on my normal commute where 50 is the maximum speed (the speed limit is somewhat lower). On my best days it's sub-200 but everything has to click. Today I drove 180 miles to attend a car show and the average was 251 but that includes some rocket launches. My average over 25,600 miles is 255 Wh/mi.�
Jun 14, 2014
andrewket Me either. Cruise control at 65 and I'm happy to get 300. 21" wheels though.�
Jun 16, 2014
FlasherZ This is one of the more commonly asked questions - how does A/C affect the range? I think Tesla did a great job here at minimizing the range impact of the A/C system, even at full blast. There are downsides, of course, the noise of the compressor being the biggest.�
Jun 16, 2014
chickensevil Haha! I actually got a call from Rockville about this as well (last week) and I told the lady that I had previously initiated communication with them and I guess it had fallen to the wayside. I am now scheduled in July to get this taken care of (among other things).
Having now just finished my first road trip (VA to FL and back) I will say I cannot defend the noise any longer.
One driving through 85+ degree weather means the AC is on all the time... even opening the door or cracking a window for 2 seconds rapidly increases the temperature in the car when you get over 90. This of course means that the AC noise is always in your face.
Two plugging in to a supercharger makes this even worse. I found myself keeping the AC on while supercharging (and dropping the temp to like 65) since I was drawing power from the line, it seemed more beneficial to keep the cabin cool rather than wasting that power after I disconnect. The worst locations was Savannah and Santee since I was still very much in the south and even at 10 in the morning it was 85 outside already. Savannah being at the airport parking garage made the noise louder as it echoed and bounced off the concrete. I heard my car from the terminal (which is easily 100 yards or more away). And just to be sure I turned off the A/C and you could immediately hear a huge difference in the garage.
That was about the worst case scenario I could put the A/C in since I was charging at 120kWh AND trying to cool the cabin to 66 at the same time. Poor car... she sounded so bad...
Anyway, hopefully this will be fixed soon and it will be much quieter and less vibrations as you drive.�
Jun 16, 2014
SarahsDad Wow I too received an unsolicited email from my SC stating:
"I received an e-mail from Tesla asking me to contact you regarding your AC Compressor noise."
I hadn't mentioned it anywhere except this thread so I guess they do monitor it. My AC blanket is scheduled for the end of the month.
Gotta love the proactive approach��
Jun 16, 2014
rogerkang Same here. They called me after my post here and wanted to fix it. Great service.�
Jun 17, 2014
justaddsun Can't believe they didn't do a search and find my post about this from last August! Loud AC sound from outside (video)
Where's my call? Kidding�
Jun 17, 2014
znino Mine has become ridiculously loud. For a good first minute it sounds like my car is going to take off. I had previously mentioned it to the service center last year but they kept insisting it was normal. Now that I see everyone getting calls to go put that insulating blanket and bracket I think I'll bring it up again. So useful to have these forum threads as backup to show when they say it's normal�
Jun 18, 2014
FlasherZ Got a call today to install the blanket and bracket. By coincidence, wife was in the area (I live ~50 mi. from svc ctr) so they dispatched the loaner, did the work, and swapped it back in a jiffie.�
Jun 18, 2014
Mayhemm My car is currently in getting the radiator replaced (due to damage). Do you think they will apply the TSB? I'd hate to get the car back only to have to turn around and get it done.
I'm seeing a lot of parallels between this thread and the one for the "balloon noise".�
Jun 18, 2014
pete8314 Not wanted to take this thread off on a tangent, but was there ever a 'fix' for the balloon noise? My car has always had it, but the last couple of loaners I've had did not.�
Jun 18, 2014
dsm363 Worth calling them to ask.�
Jun 18, 2014
Jeeps17 I had the TSB applied to my car yesterday, and after my car sat in the (Montreal) sun all day I turned on the climate while standing outside, and could barely hear the AC ! My baseline was a Cessna prepping for takeoff.
Then I realized I still had the car in range mode... D'oh!
Turned range mode off, and put climate on full auto inside the car with barely a change in noise levels, but a slight vibration in the steering wheel.
I will repeat the test over the coming few days (warm weather in the forecast) without the range mode potential confounder, but so far colour me impressed !!!
FWIW the head mechanic at our service center told me the balloon noise is normal with all 85 kWh batteries under heavy acceleration.
My loaner was a new S85 (VIN 38,3xx - 3,600 km on the odometer), completely silent while driving, and when safe to do so I progressively floored it and got the balloon sound, less intense than in my P85, but otherwise identical.
Completely off-topic, but that loaner was a multi-coat red, and (1) the colour is drop dead gorgeous in the sun, (2) I got so many looks I am sure I would have a ticket in no time compared to my "stealth" dolphin grey.�
Jun 19, 2014
chickensevil Yeah, all the cars I have been in has the balloon noise (never knew what to call it until now, haha). I assume we are all refering to the engine whine when you floor it and hit really high kw usage? Mine starts to whine at me above 160kW, regular 85, and the couple P85s I have had the pleasure of riding in, when they floored it, it seemed to whine a little sooner, but I would assume all of this is "normal".
You are spinning the AC motor REALLY fast at that point which is what that noise is. Anything with a fast enough spin will have some kind of noise it is amazing it stays quiet as long as it does
Note, the roadster is much more noisy, and you can hear it pretty easily from outside the car even. (If this is not the noise to which you all are talking about then I am sorry and forget everything I have been saying.)�
Jun 19, 2014
yobigd20 I think it's funny how as the thread owner and how I even posted recording above that I haven't got contacted yet everyone else has lol. Perhaps that's because I'm over 50k miles and out of warranty and the good service is over? I'm hoping that's not the case. They should have me on record complaining back this way back summer of 2013 because if I recall i think they even responded in the service notes saying that they don't have a fix for it yet and this was way back somewhere between 10-20k mile marker. We'll see. I'm actually scheduled for some service work soon anyway due to some other pre-50k issues I've had that they've noted so perhaps they'll just tack this onto that as well.�
Jun 19, 2014
yobigd20 I just checked. They have me on file complaining about the AC back in Sept 13 when I was at 22.9k miles. In the report they marked this as normal. But in person they told me tesla was very aware of it and was working on it but there was not a fix yet.
�
Jun 19, 2014
mknox I don't think that's it or it would be related to speed, not power. There is no transmission and the motor's rotational speed is always directly proportional to road speed. FWIW, I have an S85 and have never once had the balloon squeal sound in over a year of ownership.�
Jun 19, 2014
chickensevil hrmmm I think I need a reeducation in how this car works... Could it be the big power converter on the left side that makes the noise then?
My understanding of what is going on here with this photo, the left side is the AC/DC converter. That feeds AC power directly into the AC motor on the right. That spins the gearing you see in the middle.
So from the pedal neutral position (coasting) when you push down it tells the computer to increase the amount of power going into the AC/DC converter in order to directly feel more power into the AC motor to make it spin faster. When you lift up it tells the computer to draw power away from the AC motor in order to reverse the flow and make DC power go back into the battery.
On a basic level, this is how I understand the mechanics of the car, is that correct? So then the "noise" you hear when you are at high kW on your power gauge would in-fact be coming from the AC/DC converter? right? If that is the case, I think I was just confusing the terms up above, and in which case I am sorry. If this is not how it works at all, then can someone clear up how my car works please? haha!
Note: references to AC/DC is not to be confused with the Band, AC/DC�
Jun 19, 2014
mknox I'm not sure if it has been definitively resolved, but that would be a good guess. I've also heard it could be coming from the battery pack itself or some wiring harness when high currents are called for.�
Jun 21, 2014
shepali So, I don't know if it was because I replied to this thread last weekend, or because I had inquired about the AC noise a few months back - but I got a call on Tuesday from the local service center offering for me to bring the car the next day for the "acoustic blanket". I got it installed yesterday. It definitely "muffles" the sound....but its still loud. Having said that...the sound never really bothered me (as you can read in my post last weekend), and still doesn't.
I continue to be amazed at their incredible customer service. They told me to bring in both keys, and they would replace the exterior if it was scratched (which it wasn't, because I use a USB condom on them!), said I should bring in my charging cord and adapter to be checked, they washed it, rotated the tires, upgraded to 5.11 (which doesn't appear to have any meaningful differences from 5.9) and a whole host of other diagnostics. As an accountant, I do wonder how long this model is sustainable (and their accounting model for it!). But I definitely appreciate it. I'm sure it is in hopes that we all tout how amazing the car ownership experience is, and I suspect we are all doing that! I just hope the economics continue to play out, to allow the company continued growth!!�
Jun 22, 2014
Mayhemm It shouldn't be all that difficult to make the accounting work, if Tesla is serious about not profiting from vehicle service. They'd have all the extra funds that traditional service centers would just pocket as profit to pay for the services you experienced. The trick is not using an ICE dealership as a baseline.�
Jun 22, 2014
wamochi just took delivery. one of the first things i notice is that when you leave the car and AC and other systems shut down, you can hear the loud AC motor and subsequent chirping as its winding down to a stop. the chirping is very loud and annoying. is that normal? do you think my recent production would have included the acoustic blanket and bracket update for the AC motor?? or is this normal?�
Jun 22, 2014
iKhalid My model S was made in February of this year. So far, I haven't heard anything abnormal. Just the normal motor running with a reasonable sound. And I hope it stays like that.�
Jun 23, 2014
chickensevil Given your northern location I recommend you find an excuse to make both your battery and car very hot requiring AC to really test this out. Because I am willing to bet you haven't noticed anything too much because you haven't gotten it warm enough yet. My car was made in March of this year, so it is very likely you have the same issue. Might be worth asking your service center about.�
Jun 23, 2014
iKhalid Actually we've seen hot days and the interior was burning at times. I even tinted the windows because I couldn't take it anymore. I don't have an indoor parking, and believe me, it gets really hot when it's sunny and humid.�
Jun 23, 2014
stevezzzz I had my Sig S in for the underbody armor last week and asked them to look into the A/C noise while it was there. They decided to install the acoustic cover and bracket, but it's been relatively cool these last few days so I don't know how much of a difference it will make.
As far as the balloon squeal goes, I've never had it on this car. I've got a low moan that starts at around 75mph, but no balloon noises.�
Jun 23, 2014
invisik Mine was born in March 2014 and has the same symptoms as wamochi. Mine also squeaks like crazy at times when it's running too. The SC is taking it today to do the AC bulletin and other misc.
-m�
Jun 23, 2014
nirvanaman Good question, not sure.�
Jun 24, 2014
phat78boy With the 100+ days returning, so have my loud squeals from the the AC. As others have noted, it is only when the AC is at full blast. Once the car cools down, it is acceptable. That first 10-15 minutes can be embarrassing at times though.�
Jun 24, 2014
invisik My SC said the AC noise reduction kit is on back order.......
But they replaced the pump that was super squeaky at least.
-m�
Jun 24, 2014
chickensevil I think my biggest issue with it is just mostly that it vibrates the car more than the noise itself. Just today as we were heading home from work I could feel it in the steering wheel and the pedals.�
Jun 24, 2014
yobigd20 Not surprising. They need about 40,000 of them. lol�
Jun 26, 2014
gg_got_a_tesla Well, so much for them proactively reaching out to make an appointment for this (about three weeks ago). Got an appointment for yesterday and asked for the following:
- AC blanket/bracket
- Underbody armor
- Front defog vents retrofit (had them order the parts from Fremont; the three week gap was just for this)
- Minor/infrequent rattling in front right door panel
- Firmware update to 5.11
The service advisor calls and says that the AC job would take too long (5+ hours), that they'd do it only if they can reproduce it (and, yesterday turned out to be a weirdly cold day here) and that it could either be the blanket/bracket service bulletin or a different condenser-related bulletin. So, no dice yesterday given that the car was valeted back and forth from my workplace (poor me
Got the armor plate, firmware update and car wash yesterday and nothing more. They couldn't repro the rattling either. Not the defog vents either despite having the parts ordered weeks out.
My first so-so experience with the Burlingame service center although the valet service is always great, very convenient and much appreciated.
Back to Range Mode for me.�
Jun 26, 2014
paulkva GG, ask your service center if they'll accept a cell phone video. I think that's what convinced Rockville to take care of mine (although my actual appointment isn't till late next month).�
Jun 26, 2014
chickensevil slightly off topic, what is the defog vents retrofit? is this something recent or an older issue? Sorry you didn't get them to fix the issue for you, I would write a letter to corporate to complain about this in all honesty, since we all know this is a real issue.
note: I am not trying to get anyone in trouble here. I am sure they are just trying to do their jobs to the best of their ability.�
Jun 26, 2014
Mayhemm I thought the whole point of a TSB was that they would perform the service on applicable vehicles regardless of whether or not they could reproduce the problem? A problem had already been proven to occur in that model of vehicle; thus the TSB.
This "can't reproduce the problem" nonsense is bringing back memories of my experience with NADA (or their Canadian equivalent). Not something Tesla wants to get in a habit of doing.�
Jun 26, 2014
chickensevil Yeah, that's a great point. Up until now, all reports I had heard of people getting TSB's taken care of on their car, most of them were done without the customer even HAVING to ask for it. "Hey, while you had your car in here, we went ahead and replaced your 12V battery just in case"... "Oh! Thanks! I didn't even know that was an issue"
This is why I specifically said he might be good to send a letter to the ownership email address about this, since that is not really a path I want to see Tesla heading down. I assume it is just that one SC and I know he has said he has had pretty great service thus far, but I really want to see Tesla continue to be a leader in how it handles problems with its cars. Last thing we need is for NADA to have fuel for their claims about Tesla not taking care of something they know is a problem because it is an inconvenience to the company.�
Jun 26, 2014
rkruff C'mon people... Let's support our car company. Why would they go out and fix everything when it's working fine for the vast majority of people? That makes no sense. My experience has been great...if I have an issue, they take care of it. I don't expect, or even want them to go through the car and fix every problem that a few others may have experienced. Once they have evolved into a larger company, maybe I'll expect more. That said, they have always taken care of my issues.�
Jun 26, 2014
Mayhemm No, that's exactly what TSB's are for. You bring a vehicle in for service and they run down the list of applicable TSB's. The issues they deal with will have already been corrected in newly produced cars. They just need some way to apply the same fix to older cars. That's your TSB.
The only thing that's debatable here is whether you should go in on your own or whether they proactively contact you about them. This last part seems to vary by service center.�
Jun 26, 2014
rkruff I only want them to fix problems that I bring to their attention plus anything that involves safety. I suspect that the TSB has requirements associated with it...they have never said anything to me about my 12V battery, so I can only conclude that it is done if they see other symptoms. I don't want to be a Tesla fan boy but I really am amazed by how everything works with them. Go ask someone how Fisker worked out for them and you will probably appreciate Tesla's track record a whole lot more.�
Jun 26, 2014
znino I agree in principle as long as it is not a safety related issue BUT I am part of a club of 70+ owners and the grand majority of those I talk to have this unacceptably loud compressor noise. From my sample I would not say as you have that it is working fine for the vast majority of cars. I would actually conclude the vast majority probably DO have the issue.�
Jun 27, 2014
jerry33 Tesla does work it that way much of the time, but every other car manufacturer (as far as I know) only does TSBs if the customer requests it. It's the SSCs that they run though the list and do them when the car comes in for service.
An example is the defroster vents. I'm in Texas so defrosting isn't a huge problem and I like the clean look of the original dash, so I haven't had them apply that TSB. If I lived in Toronto it would be another story.�
Jun 28, 2014
ken830 See my video earlier in this thread: http://www.teslamotorsclub.com/showthread.php/31877-It-s-that-time-again-embarrassing-loud-AC-compressor?p=679725&viewfull=1#post679725
Mine squeaks/chirps not just when the A/C starts or stops, but also the entire time it is on. So annoying and super embarrassing when strangers begin asking why my car is making such an awful sound.�
Jun 28, 2014
AmpedRealtor I believe that bringing your car current on TSBs occurs prior to initial delivery and then when you have your paid annual maintenance. Some service centers will do it as a courtesy when your car is in for other warranty repairs, but this is not consistent from SC to SC. However, I believe anyone who brings their car in for paid annual service should receive all the TSBs.
- - - Updated - - -
Ken, my car doesn't sound like that when the fans are spinning down. In fact, my car has none of that squeaking. My car is almost a year old with almost 11,000 miles. I can also hear in your video what sounds like friction. Based on your video, your fans spin down and stop much faster than mine. This would make sense if something is rubbing or causing friction. I would definitely have it looked at, that squeaking noise is not normal. If it were, I should have it too.�
Jun 28, 2014
ken830 Yes. I think it is not normal, but is somewhat common. I've heard it on several cars already, but none as bad as mine. Mine has been doing that since day one. I'm now at over 1 year and 25,000 miles. The service center has worked on it at least three or four times. Each time, it seems to be exactly the same or worse. This last attempt made it worse, and it is actually even louder and more obnoxious than the video.�
Jun 29, 2014
FlasherZ There are two types of TSB's on the schedule - the first type are the "mandatory" TSB's, things to be done any time a car is in for service. The second type are the "on request" TSB's, things to be done based on customer complaint. Not all TSB's are done on all cars.
That said, if a TSB exists for a specific problem, and the customer complains about it, reproducing it shouldn't necessarily be required.�
Jun 30, 2014
russman My car is in the shop for something else and I have a loaner this weekend. My car didn't make a lot of noise with the AC, but this car has air suspension and I though an airplane was flying overhead. My wife asked me what that noise was. I turned off the climate control and then it went away. Turned it back on and after a couple minutes it came back. I'll tell the center, but I haven't noticed it in my car, but maybe I haven't had the compressor going a lot.
As a side note, this loaner has charging issues and can't get past 27/27 AMPs.
Anyone looking to buy an inventory S60, I'd stay away from the white from the Burlingame service center. I am thrilled to have a loaner though, as the last few times I didn't have a loaner, so I'm not complaining. The people at the center have been great from a customer service perspective. I'm hoping this is my last visit till my annual visit as I've been in about 5 or 6 times since owning the car for only 3 months.�
Jul 2, 2014
brianman This may have been posted (I haven't reread the full thread recently) but in case not...
�
Jul 8, 2014
SarahsDad In followup regarding my above posts #73 (video of compressor noise) and #130 (about being proactively contacted by Tesla SC offering a fix), I just had my P85+ returned to my front door this evening with the new blanket/bracket installed. Definitely sounds quieter and lower pitched whine now. Pretty amazing service.�
Jul 8, 2014
William13 After fix: better sound, lower pitch/less of a whine, less vibration, not noticeable inside car due to interior fan noise from AC.
Color me happy�
Jul 9, 2014
wamochi update from me also - the very loud chirping/hamster wheel at shut down was resolved at the San Diego service center on Monday. they replicated the noise and replaced both condenser units and now it's DRAMATICALLY quieter. there is a still a faint winding down noise when it shuts down, but that is normal and a very acceptable decibel level. in fact it would probably go unnoticed by any passerby, whereas the hamster wheel noise would cause people to look and wonder.
TWO THUMBS UP to Dave, Brian and the techs at San Diego Service Center for the successful repair and reaching out to me after my forum post!!!! very awesome first time service experience. doesn't hurt that i got a brand new S85 in MC red with grey 21's as a loaner :love:.
�
Jul 9, 2014
rodb I have the exact same thing as wamochi as well. chirps loudly when it comes to a stop.�
Jul 9, 2014
ken830 My "hamster-wheel" squeaking is also dramatically better after replacing both condenser fans for the second time. The wind-down still chirps slightly, but I'll take this over what I had before where I could hear my wife coming home from a block away.�
Jul 9, 2014
jak Mine doesn't have the hamster-wheel noise, but it sounds like a jet-engine when the AC is on. My SC also said they applied the bracket and blanket, but it still sounds like a jet engine or a couple of vacuum cleaners tied together. It doesn't vibrate the brake pedal as much anymore but I can still feel the vibration in the brake pedal when the compressor is running.
It's actually pretty embarrassing to turn on the A/C remotely and walk to my car while seeing others walking by wondering what that loud noise is coming from my car. When people ask me about it, I tell them it's the A/C and a few of them would tell me they thought the Model S was supposed to be quiet. I no longer go through any explanation and tell them they got it wrong and that it's loud in the summer and quiet in the winter.�
Jul 10, 2014
smsprague Pretty much my experience - can sound like a F-16 fighter at times - my brake petal does not vibrate - I just say it is starting the jet engines to takeoff�
Jul 11, 2014
steve841 I had the acoustic cover installed ....
WOW what a difference.
Highly recommend for anyone who hates the compressor noise. :love:�
Jul 11, 2014
ken830 Guys... the jet-engine sound, as loud as it is, is NOTHING compared to the broken hamster wheel sound that you can hear from a block away -- in addition to the jet-engine sound.
After my third set of fans, I have just the jet-engine sound now with a hint of hamster wheel... So I'm pretty damn happy until they source that newer, quieter fan that the service centers have been promising for over a year now.�
Jul 12, 2014
ElSupreme Same here. They pulled my AC compressor, added a different mount point. Replaced it with sound blanket. It is so much quieter. Great.�
Jul 12, 2014
Ohms.Law EL - same as you however I also got a new compressor out of the deal. This was the 2nd summer in a row that the old one failed. Now I don't scare people as I roll down the highway. Satisfaction!�
Jul 12, 2014
GinoG My MS was delivered 5/28/14 and while the compressor, I feel, has a normal sound, the hamster wheel noise as the fan winds down is annoying and embarrassing. I have also noticed a vibration at around 80 mph, but thought maybe a wheel was out of balance, now I wonder. Nearest SC is 450 miles away, so will contact Tesla on Monday to determine how this will be handled...Thanks for all the videos and discussion.�
Jul 16, 2014
Moparposterchild You can add me to the list. Just went out this evening and had that loud noise coming from my a/c. Took a video of it too just to compare with others and its the same issue. I also noticed the other day from the inside of my car with the a/c on full blast that it sounded like the fans were blowing way harder than I've ever heard before coming from the front of the car and almost seemed like there was a low frequency drone and/or vibration.�
Jul 17, 2014
yobigd20 Tesla applied the TSB to my A/C unit. It's much quieter now. In fact, I don't even notice any sound now. Works great! Sounds quiet! Thanks Tesla!�
Jul 17, 2014
AmpedRealtor I recently attended a Phoenix Tesla gathering. AC noise was high on the list of conversation points. I do not have the sound blanket. I parked my car next to another which did have the new blanket and bracket installed. We both fired up our ACs to the highest level, first one car and then the other. I honestly could not tell which was louder. Perhaps my hearing is fading, but they both sounded the same to me.�
Jul 17, 2014
ElSupreme They didn't have the sound deadening that I have then. Mine went from 70mph road noise levels, to quiter than the fan. After the update.�
Jul 17, 2014
Gizmotoy Mine's much improved. It went from being able to hear it from way across the parking lot, to being within 20-30 feet. I can still feel it in the wheel and pedals slightly, but it's not at the disturbing level it was previously.
Good fix.�
Jul 18, 2014
SarahsDad Here's my before and after blanket/bracket fix comparison:
Before: (from post #73 above)
After:
Pretty obviously improved.�
Jul 25, 2014
pete8314 I'm not impressed by the fix on my car. It is slightly muted, but it still sounds like a rotor is off-balance. The thing that really bought it home for me was being at TMC Connect where all the Model S's were gliding around silently. The benefits of temperate climate!
Pete, Dallas, currently 101f, 133f inside the car.�
Jul 31, 2014
grkviking 
�
Jul 31, 2014
mknox Had the fix done to mine the other day, but it's turned cool here so I can't post any meaningful observations yet.�
Aug 1, 2014
Mayhemm Had Tesla perform this update while my car was in for repairs, just to be on the safe side. Can't really tell if it made a difference because I haven't had the car since it was barely above freezing (sure wasn't using the A/C then!).
It seems good though. On full blast, it's still a good deal quieter than my mom's Lexus, and way WAY quieter than our trucks.�
Aug 2, 2014
tgp1019 My car has same issue. When A/C turned on loud humming noise comes from the front of the car.�
Aug 2, 2014
mknox Update: The TSB work was done on mine. It is still audible in the car, and I can still feel it through the steering wheel, but it is much reduced and not as "harsh" sounding. From outside the car, it now just sounds like a large fan as opposed to the very rough mechanical sound of before.�
Aug 4, 2014
cinergi I'll echo these sentiments. Mine was just done, too. Much better.�
Aug 4, 2014
bhuwan I should get this done. Mine is insanely loud.�
Aug 4, 2014
Juan Burgundy I've opted out for now. The weather in LA is pretty much the same everyday and doesn't get too hot. Summer's also over so the noise hasn't bothered me too much. I did hear that all of the newer cars have this installed from the factory.�
Aug 5, 2014
mknox I wonder if it's because on an ICE, the a/c compressor is mounted to the engine which is, in turn, mounted to the vehicle frame through some sort of dampers whereas the Model S compressor is mounted directly to the frame?�
Aug 5, 2014
ckessel Summer is over? Summer is 6/21-9/22. We're almost in the exact middle of summer.�
Aug 17, 2014
Lump Ever since I had the acoustic blanket\ bracket work done I need to lower the temperature by 3-4 degrees to achieve the same comfort, my wife & I both agree its not blowing as cold as before, I used to leave it on 68 & now I have to lower it down to low resulting in more energy usage & increase in cabin noise, anyone else experience this? Temperatures have been the same since the work was performed & leaving in the morning having parked in the garage I now have to lower to 65...kind of regretting it so far.
Firmware 5.12 might be to blame, its still causing all kinds of problems for me.�
Aug 17, 2014
chickensevil I haven't noticed this issue and have had the work done and have 5.12 installed. I tend to keep the temp at 73 and only lower it when I am sitting in the car and the angle of the sun is beating down directly on me... Even then I only have ever gone down to 68. But some people like it colder than others... Needless to say I haven't changed my habits.�
Aug 17, 2014
SummerlinModelS Agree...I haven't had to change my temp settings at all. 105 outside today and still had the A/C set to 74-76 same as 2 weeks ago before I got it done.�
Aug 17, 2014
Lump I had a feeling something was wrong with my car, today I had to drop it all the way down to LO for over 20 minutes before we finally cooled off with outside temp of 93, normally I just leave it set at 68 & only after long periods of sitting under the sun do I occasionally lower it to 65 for a few minutes.
Just not as cold or blowing as strong, they changed the cabin air filter at the same time, maybe thats the cause.
One step forward & two step backwards I guess.
Crystalline tint on all windows including windshield.�
Aug 17, 2014
chickensevil Yeah, wow I am sorry. I don't even have tinted windows and we are still getting high 80s and 90s in VA... You should definitely have them take a look. I am sorry that you are having an issue�
Aug 18, 2014
mknox Haven't had to adjust my temp setting since having the sound kit installed, however, my early car does not have the internal aspirator and I have always had to keep it at 67 F to maintain comfort.�
Aug 18, 2014
chickensevil Can you clarify? What is this?�
Aug 18, 2014
mknox Newer cars have an aspirator (a little fan) to draw cabin air in over the internal temperature sensor. It looks like a quarter-sized arrangement of small holes on the forward face of the center armrest above the USB ports. Earlier cars have an internal sensor without the aspirator and it is subject to influence by heat or cold soaked materials around it. For likely this reason, my car's ability to measure its internal temperature is not so good, and I find I have to keep the temperature setting at around 66 or 67 to maintain an "actual" cabin temperature of around 72 to 74 F.�
Aug 18, 2014
chickensevil Oh, and here I thought that was some kind of speaker or some such. Learned something new�
Aug 19, 2014
LarryC +1. I even tried yelling into it to get voice commands to work.�
Aug 19, 2014
chickensevil I can totally picture bending down and yelling at it! "Find Gary Busey!!!"
Thanks for the laugh�
Aug 19, 2014
Lump SC ran a number of test trying to figure why I now have to run my AC on LO after having the blanket installed, they found nothing wrong, but when they delivered the car we ran mine with the blanket (on the right) next to the loaner without the blanket both on LO after 5 minutes & the exterior noise was about the same, the loaner did have the higher pitch but to the ear they sounded equally as loud...my car was returned to the SC :cursing:
I took a quick video with my iPhone so the quality isn't great AC noise blanket comparison - YouTube
�
Aug 19, 2014
Moparposterchild Well I have to say I'm a bit perplexed. I was contacted practically the day after I posted here about my car having the same noise. SC called and said they saw I had posted and asked if I wanted to have the insulation blanket installed. I was very impressed at the proactive nature of Tesla and their service centers.
Well, I booked an appointment a month in advance. They picked my car up today and dropped off a loaner. Since they had my car I asked for a couple of other things to be done. A tire rotation and the drivers seat mod. I will say that I never had a problem with the comfort of my seat, but after everyone on here rave about the improved comfort I requests that it be done. Come to find out my car already had it done, but when they put my seat back in they didn't righted something all the way and my seat is obviously loose. Not to mention that they didn't even install the a/c insulation because they said its on back order! Why would they take my car in if they didn't have the part, and why wouldn't they have the part when the appointment was set up a month ago? Ugh. Back to the service center it goes for the seat to be tightened and eventually for the a/c whenever they get the part in. Bummer.�
Aug 19, 2014
Lump I am not surprised, I can't tell you how frustrated I am.�
Aug 19, 2014
gg_got_a_tesla ^ sounds a bit like my experience in this context a few weeks ago:
It's that time again - embarrassing loud AC compressor - Page 16
Thanks for the warning about the seat mod; I'll not try to "get it fixed when it's not broken".�
Aug 20, 2014
chickensevil Your car is old enough that unless you had it done, you probably don't have it. I would say somewhere around 30k VINs and beyond, maybe a bit earlier than that because it came out early in the year (2014).
- - - Updated - - -
I will also say about the seat mod, what threw me, new cars now ~36k VINs actually have a newer better seat in them, and the comfort difference between a seat that has been "fixed" and the new seat is pretty noticeable. I only knew about that because of a recent service visit for myself, having gone straight from my car to a loaner not expecting anything at all, sat down and instantly was like "oh wow, that's comfy" and immediately called them to have them upgrade my seat...
Turns out I already had the seat mod and there was nothing more they could do at the time.
But the newer cars... it isn't just the drivers seat, it is all of them, including the back, because I had my daily commuters in my carpool comment on it in the loaner car I had as well.�
Aug 20, 2014
mknox Since having my a/c mod done, I'm now more inclined to not bother with the Eco mode, which I used to use primarily to keep the noise down. What I've noticed is that the two front active louvers are almost always open whenever the a/c is on, even if it's not running flat out. In Eco mode, I never saw those louvers opened.�
Aug 23, 2014
Lump I had the acoustic blanket & vibration bracket removed, in my situation the noise reduction was hardly noticeable compared to the loaner that didn't have the work done & for reasons unexplained I wasn't going to drive around with the AC set on LO when I was perfectly happy prior to the blanket leaving it set to 68-69, while the blanket was on they ran extensive tests & everything was working properly & even offered to replace the compressor even though they didn't think it would help, I declined the replacement because I didn't want thousands of dollars of shareholder money wiasted on a low confidence fix when they didn't see a problem with the unit.
I have driven the car for a brief period & so far back to 68-69.
Everyone here has been very pleased with the blanket so I even talked to the head technician at the SC & he recomended having it installed & said no negative side affects & it was thouroughly tested in Arizona so I thought fantastic, here is another example of my car getting better...well in this case it didn't.�
Aug 23, 2014
AmpedRealtor So far you are the only one reporting this. I live in Arizona and am involved in various Tesla clubs in the area. Nobody has reported this problem.�
Aug 23, 2014
Runs Kwh I should have the SC take a look at my car. I have to have the AC at around 65-66 to get the car comfortable around 72-74. I hope Casey in Van Nuys can help on this. I've had a few troubles with the car (including the master charger going out last week).�
Aug 23, 2014
Lump Van Nuys is my SC & dealt with Kasey & the Technicians directly last week, I hope they resolve your issues & you don't become as frustrated as I am.�
Sep 13, 2014
bollar A cold front came through yesterday and for the first time since April, I could drive in peace with no AC at all. Ahhhhh.....�
Sep 13, 2014
pete8314 Amen to that. California for a day�
Sep 13, 2014
AmpedRealtor I received the sound insulating blanket TSB. Absolutely no difference with the noise as far as I can tell. This confirms the experience I had a couple of months ago when I met other Model S owners in the area. We were comparing the AC sounds of cars with and without the sound insulation, and I could not tell the difference at all.�
Sep 13, 2014
Lump I am not surprised, hopefully you won't encounter a change in performance.
I am still baffled by some reporting a huge reduction in noise & for others its almost negligible.�
Sep 13, 2014
mknox For me, the noise and vibration inside the car is exactly the same as before the TSB work was done. I can hear it as well as feel it in the steering wheel and even in my foot on the brake pedal. Where there is a HUGE difference is outside the car. It now just sounds like a fan noise as opposed to the loud, vibrating turbine it used to sound like from the exterior.�
Sep 13, 2014
rtz Let's see some pics/video of the actual compressor. Specifically the rubber isolator mounts. If they had a softer durometer; they may quiet it down if that is the source of the noise. Or is it the electric motor that drives the compressor; or internally in the compressor itself?�
Sep 13, 2014
scaesare I have seen a few posts that suggest the freon lines leading to/from the compressor can in some cases make contact with some structural members of the car thus transferring sound & vibration.
I have no idea how true that is, what percentage of cars suffer from that, or if it's part of the TSB procedure to correct that... but it might explain why some people have louder cars than others... or the TSB isn't as effective in some cases.�
Nov 3, 2014
invisik The local service center called me last week and said my parts were in. I said what parts...? The AC parts? Yes. Only been waiting since like June and now won't be using AC for another 6 months, heh. At least it's installed. I hope they can get more of these kits done for people over the winter so they're not all backlogged next summer...
-m�
Nov 3, 2014
apacheguy @invisik - are those parts you mention just the insulation? Or is there a new TSB out to correct issues owners are reporting even with insulation?�
Nov 3, 2014
invisik It is just the original TSB, to my knowledge. It has been on order that long. I'll check my receipt when I get it.-m�
May 19, 2015
tinm I'm posting in this thread even though my noise issue is not, I don't believe, the A/C compressor. (My car has that noisy A/C compressor sound, always have, and it's particularly embarrassing when pulling up at a red light and everyone around me can hear that noisy buzzing from the Model S.) What I'm talking about is different.
I'm in New Mexico, and have not had a need to use A/C in a long while. Whenever I turn the car on, the second I turn the car on in fact, I get this lower-pitched buzzing sound coming from the front of the car. I hear it in the garage. I hear it when I'm backing out. I hear it while driving, though eventually it goes away . . . only to come back again at various stages while driving. And when I slow to a stop to park, say, the buzz gets going again. I've even wondered if it had something to do with the brakes.
I'm not sure if there is a separate thread for this non A/C noise, if so I'll go there instead, but does anyone else know what I'm talking about? Is this a known issue with the car? My car has 24.5K mi on it. This sound started around the 20k mark.�
May 19, 2015
pgiralt Hard to tell by your description if it's related to the AC or not. Any way you can get a recording of it? Maybe record a video and post to YouTube.�
May 19, 2015
chickensevil Just a quick guess it could be one of your water pumps turning on to cycle the liquid in your battery pack. But as stated, without a better description/sound clip it is hard to say.�
May 19, 2015
Cyclone Yesterday when I was going on a lunch run, I pulled up the app to precool my car. It said the cabin was at 108 degrees inside. I vented the sunroof, turned on the AC and got in the car seven minutes later. It was making a very, very loud buzz and had a strong vibration that I could feel in the car, especially on the brake and steering wheel. It went away after about 10 minutes. Today I went in and saw the service team for the first time. They took care of some due bill items and saw I needed some things worked on. I asked them about the sound and vibration and they said the AC TSB had not been applied to my car yet. They have a couple things to do to my car, so I will get that and everything else fixed on 6/1. Hopefully that will fix it b/c that was a very unexpected sound and vibration!�
May 19, 2015
Chris TX Is everyone aware of the silencing kit that's retrofitted upon request? I had mine done last year and it's very quiet now. You can still hear the humming, but it's a mere fraction of what it used to be.�
May 19, 2015
ken830 Just from your description, it seems to just be the vacuum pump for the brakes (assuming you have a pre-autopilot car). Probably completely normal. Sounds similar to the air suspension pumps too.
On hot days, turning on the A/C can force the A/C compressor into the "max take-off" mode and yes, it's very loud. You will hear it from outside and inside of the car. And the whole steering wheel and pedals will vibrate. That's just the way it is. I've gone through three or four A/C compressors. Some are a little louder, some softer, some squeak loudly, some squeak extremely-loud, but they all make unpleasant noise. One way around it is to enable range mode and that will probably never allow max-a/c, thus eliminating the jet-taking-off sound/vibration.�
May 19, 2015
apacheguy @tinm - This could either be the brakes as mentioned by others or air suspension. I have a similar, continuous noise that I've isolated to active air. Recently the air compressor has been running excessively (for like 2 mins at a time) and lets out a disconcerting "poof" periodically. Sounds like something is definitely on the fritz with mine. Is yours similar?�
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