Squeaking brakes

BlackjackMulligan · 09-02-2009, 09:37 AM

I know this has been discussed a lot........my brakes are squeaking pretty badly now. I'm trying to hold off from yet ANOTHER trip to the dealer.

Many people have recommended "bedding" the brakes by performing several 60-0 stops. My question: Has anyone found that this actually works to stop the squeaking on the 1er? It sounds like it would make sense on new pads, but these had about 3K miles on them when they started.

It's a pain to keep going back to the dealer, wanted to see if this was something that I could do to fix them prior to scheduling another appointment.

PrimoM3 · 09-02-2009, 02:05 PM

Ditto (and bump)

Smokey · 09-02-2009, 02:41 PM

I don't know how effective bedding the brakes is, but one of my friends had the same problem with the brakes on his 135i and took it to the dealer. The dealer replaced the brake pads and the brake pad wear sensor-- the squeal went away after that.

desmat · 09-02-2009, 02:54 PM

Dealer cleaned the accumulated dust around the pads/calipers here...

JN2009 · 09-02-2009, 03:16 PM

Quote:

Originally Posted by desmat

Dealer cleaned the accumulated dust around the pads/calipers here...

Pull up the hand brake a litle bit and run around 15mph 10 sec.Do the same
with the regular brake.After clean you wheel with a good product.It resolve
the problem 80% of the time.

JN2009 · 09-02-2009, 03:18 PM

Quote:

Originally Posted by JN2009

Pull up the hand brake a litle bit and run around 15mph 10 sec.Do the same
with the regular brake.After clean you wheel with a good product.It resolve
the problem 80% of the time.

Inside the wheel too with High pressure water gun.

stovesax08 · 09-02-2009, 07:57 PM

To answer your question, I have found that bedding the brakes does work, at least temporarily. In my experience it normally stays quite for 500-1000 miles (and it seems to occur more when the weather is cold...no idea why). My understanding is that over time the brake rotors/brake pads get small, narrow grooves in them that cause the brakes to squeal when the grooves do not line up perfectly. Bedding the brakes (again, just my understanding) gets rid of the grooves so that the brakes don't squeal anymore.

former · 09-02-2009, 10:53 PM

I found that a high speed tour through a local canyon road heated up the breaks nicely to take off the glazing that seems to cause the squealing. However, the squealing was back pretty darn fast. I might mention to my dealer next time around, but I'm not sure it will help.

Also, I don't think it's really called "bedding". I think that's the process when you put a new set of pads on and get them heated up. I could be wrong but this is more like clearing glaze from light braking caused often by stop n go traffic.

BlackjackMulligan · 10-06-2009, 08:51 AM

Quote:

Originally Posted by desmat

Dealer cleaned the accumulated dust around the pads/calipers here...

Each time I washed my car, the squeal would go away for about a day or so and come back, so I made sure to tell the dealer NOT to just clean them.

Quote:

Originally Posted by Smokey

The dealer replaced the brake pads and the brake pad wear sensor-- the squeal went away after that.

This is what they did with mine as well, hopefully that does the job. They told me it was the sensor that was making the noise.

09-02-2009, 09:37 AM	#1
BlackjackMulligan Most interesting Roadster 69 Rep 2,224 Posts Drives: '01 Z3.0 Roady;'10 C300 Sport Join Date: Nov 2008 Location: Boston 'burbs iTrader: (5) Garage List 2010 Mercedes-Benz ... [0.00] 2001 BMW Z3 3.0 Roa ... [0.00]	Squeaking brakes I know this has been discussed a lot........my brakes are squeaking pretty badly now. I'm trying to hold off from yet ANOTHER trip to the dealer. Many people have recommended "bedding" the brakes by performing several 60-0 stops. My question: Has anyone found that this actually works to stop the squeaking on the 1er? It sounds like it would make sense on new pads, but these had about 3K miles on them when they started. It's a pain to keep going back to the dealer, wanted to see if this was something that I could do to fix them prior to scheduling another appointment. __________________ I can't complain, but sometimes I still do........Life's been good to me so far. - Joe Walsh
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09-02-2009, 02:05 PM	#2
PrimoM3 Chemofski 54 Rep 1,295 Posts Drives: '13 X5M Join Date: Feb 2008 Location: West Coast, U.S. iTrader: (0)	Ditto (and bump) __________________ '13 Individual Frozen Brilliant White ///M3 Coupe Ordered 2/15/12 \| Euro Delivery on 9/21/12 \| U.S. Redelivery on 12/6/12 \| Motor Dead on 7/15/13 '13 Space Gray/Mugello Red X5///M Pavement Punisher \| Snow Muncher \| Family and Board Hauler \| Roadtripper
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09-02-2009, 02:41 PM	#3
Smokey Lucky Lefty 45 Rep 746 Posts Drives: on twisty roads Join Date: Aug 2007 Location: * iTrader: (0) Garage List 2019 BMW M2 Comp [0.00] 2017 Porsche Macan GTS [8.00] 2011 M3 [10.00] 2013 bmw F25 msport [10.00] 2011 335iS [9.60]	I don't know how effective bedding the brakes is, but one of my friends had the same problem with the brakes on his 135i and took it to the dealer. The dealer replaced the brake pads and the brake pad wear sensor-- the squeal went away after that. __________________ The Power of M
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09-02-2009, 02:54 PM	#4
desmat First Lieutenant 37 Rep 311 Posts Drives: F31 M Sport Join Date: Mar 2008 Location: Montreal iTrader: (0) Garage List 2014 F31 M Sport [0.00]	Dealer cleaned the accumulated dust around the pads/calipers here...
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09-02-2009, 07:57 PM	#7
stovesax08 Second Lieutenant 7 Rep 269 Posts Drives: 135i, X5 45e Join Date: Feb 2008 iTrader: (0)	To answer your question, I have found that bedding the brakes does work, at least temporarily. In my experience it normally stays quite for 500-1000 miles (and it seems to occur more when the weather is cold...no idea why). My understanding is that over time the brake rotors/brake pads get small, narrow grooves in them that cause the brakes to squeal when the grooves do not line up perfectly. Bedding the brakes (again, just my understanding) gets rid of the grooves so that the brakes don't squeal anymore. __________________ 135i Coupe-Manual, Montego, Lemon, HG Black, sport, premium, CA, HiFi, Ipod/USB, heated seats
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09-02-2009, 10:53 PM	#8
former Practical Idealist 9 Rep 408 Posts Drives: 2009 135i Coupe Join Date: Oct 2005 Location: Greater Los Angeles Area iTrader: (0)	I found that a high speed tour through a local canyon road heated up the breaks nicely to take off the glazing that seems to cause the squealing. However, the squealing was back pretty darn fast. I might mention to my dealer next time around, but I'm not sure it will help. Also, I don't think it's really called "bedding". I think that's the process when you put a new set of pads on and get them heated up. I could be wrong but this is more like clearing glaze from light braking caused often by stop n go traffic. __________________ -f 2009 135 6MT Montego Blue Coupe, Sport, Prem, Cold, Nav, CA, iPod, Smartphone \| Euro Delivery on 10/25/2008
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