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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > 11K miles, brakes started squealing



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      05-22-2009, 09:31 AM   #1
undecided
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11K miles, brakes started squealing

When slowly rolling to a stop. What do you guys think it is?
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      05-22-2009, 09:33 AM   #2
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Join the club. Mine have been doing this for the past year and the dealer refused to do anything about it.
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      05-22-2009, 09:44 AM   #3
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+1 there is a huge thread on this. my brakes do the same damn thing.
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      05-22-2009, 09:58 AM   #4
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same here..I just accept it now
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      05-22-2009, 10:56 AM   #5
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I've heard people got new pads and that fixed the issue... do they squeal on acceleration as well?
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      05-22-2009, 11:25 AM   #6
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If you are visiting the twisties very often with DTC on then you are probably wearing down your brake pads faster than normal. I plan on getting mine changed at 10-15k miles.
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      05-22-2009, 11:58 AM   #7
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my brakes made noise on day two

its a common problem with the rear brakes on the 335
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      05-22-2009, 12:28 PM   #8
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Quote:
Originally Posted by BMdblU View Post
Join the club. Mine have been doing this for the past year and the dealer refused to do anything about it.
Yeah same here. Been to a couple of different dealerships too but no avail. I usually bring it in on the weekends so I dont miss work. The last dealership I went to says to bring it in on a weekday so the shop foreman is there. Have him sit in the car with you and if he hears it squeaking, he can call the shot and have the brakes changed.
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      05-22-2009, 12:53 PM   #9
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Quote:
Originally Posted by Kensta335 View Post
Yeah same here. Been to a couple of different dealerships too but no avail. I usually bring it in on the weekends so I dont miss work. The last dealership I went to says to bring it in on a weekday so the shop foreman is there. Have him sit in the car with you and if he hears it squeaking, he can call the shot and have the brakes changed.
That's what most dealers will do. Have them update the software as well, that's fixed the problem for some people.
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      05-22-2009, 01:21 PM   #10
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How does updating a software have anything to do with squeaking brakes?
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      05-22-2009, 01:26 PM   #11
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I had the same problem around the same amount of miles, the SA said it was something to do with the rear brake sensor that rubs something else (I was like whatever, just fix it). They took my brakes apart, re-greased everything, adjusted sensor and that was it. I haven't had a problem since. He said it was a well known small problem on our cars. It was a bit embarassing pulling up to a light though and your car sounds like you can't afford to put brakes on it. There are numerous threads on this though.
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      05-22-2009, 03:58 PM   #12
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No, they only squeal while braking slowly to a stop

Quote:
Originally Posted by ArabianSensation View Post
I've heard people got new pads and that fixed the issue... do they squeal on acceleration as well?
and not all the time either. During my 20 minute commute they may squeal 2-3 times but this just started. I am expecting it to get worse.
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      05-22-2009, 04:20 PM   #13
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Quote:
Originally Posted by szeleung View Post
How does updating a software have anything to do with squeaking brakes?
I don't know, but I've read reports that either resetting the computer or updating the software fixes it in some cases.

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Originally Posted by undecided View Post
and not all the time either. During my 20 minute commute they may squeal 2-3 times but this just started. I am expecting it to get worse.
You definitely need to take it to the dealer and talk with the service manager. It will get worse and worse as time goes on. Get the guy to go for a ride with you in the car so you can show him the problem.
Like I said earlier, they will probably change the pads and update the software.
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      05-22-2009, 04:31 PM   #14
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took it to the dealer last weekend and I was told their is a service bulletin for this issue. I'm about to go pick up my car so ill keep you posted.

It does suck when theirs a million hot babes at star bucks and you have to speed up quickly to 15mph+ to stop the squeeks.
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      05-22-2009, 04:43 PM   #15
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they just tell me at my dealer the best they can do is clean them . . it is the e92 brakes.
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      05-22-2009, 04:51 PM   #16
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sensor rub issue. you guys should look up the service bulletin on the forums and take it in to make your cases.
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      05-22-2009, 09:17 PM   #17
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This is common with all of the models: e90, e92, e60, e63, e64, e65. It is the cheap sensors BMW made. e36 sensors are by far way better than the new ones BMW makes. As long as the sensor is under 7.5mm and the sensor is touching then you can get new pads as stated in the bulletin which I'm sure is posted somewhere else in here, no need for a shop foreman to confirm. If you have over 7.5mm and have the brake squeal they should at least modify the sensor to eliminate the squeal. As for the software, there are no upgrades. It is just corrupted CBS data from either factory, someone else messing with it, or just being stupid as usual.
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      05-22-2009, 09:19 PM   #18
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Quote:
Originally Posted by Mk335i View Post
If you are visiting the twisties very often with DTC on then you are probably wearing down your brake pads faster than normal. I plan on getting mine changed at 10-15k miles.

Have you measured your brake pads? If they're under 7.5mm bring it to the dealer and I'll take care of it.
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      05-22-2009, 09:44 PM   #19
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Quote:
Originally Posted by Viper3812 View Post
It is the cheap sensors BMW made. e36 sensors are by far way better than the new ones BMW makes.
It's not that the sensor is worse, or cheaper. It's that it taller, and contacts the rotor sooner due to the two stage nature of the design for CBS reasons.
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      05-22-2009, 10:03 PM   #20
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I had a low-speed wheel squeak problem fixed during my last service visit. According to the service tech it was caused by a slight lip that had formed on the outside edge of the rotor from pad contact. They pulled the rotor and machined off the lip. No more embarassing sounds.
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      05-22-2009, 10:34 PM   #21
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I had the brake pads and rotors changed about four months ago and it's starting to squeak again. It happens during slow speeds. Today I was stuck in traffic and I was squeaking all the way home. I think I need to make a weekend appointment to check them out.
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      05-22-2009, 11:04 PM   #22
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Wow, mine started doing this at about 8500 miles. I took it to the dealer and they said they "glazed" the pads and rotors? It stoped for 3 days then came back even louder. I spoke with my service manager and he told me it's the composition of the breaks and pads that BMW switched to. I don't know if that's true, but for my case I think it's the sensor. BTW, under the service-info screen in the car, the rear brakes were at about 15000 miles left, now they are at 10000 miles and I only drove about 1500 miles. I'm going to deal with it for now and have the service manager drive with me when I bring the car in a month for yearly service.
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