E46 - weird brake problems
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW ///M Power
Forum Discription: Ask your BMW M Power Technical Questions here (M1, M2 hybrids, M3, M5 & M6)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=45835
Printed Date: 16-June-2024 at 07:03
Topic: E46 - weird brake problems
Posted By: SFH3L
Subject: E46 - weird brake problems
Date Posted: 26-October-2009 at 03:01
|
Since I bow to the collective wisdom on this forum as being greater than elsewhere, I wonder if anyone has any ideas about this: http://www.bavarian-board.co.uk/forum_posts.asp?TID=45834&PN=1 - http://www.bavarian-board.co.uk/forum_posts.asp?TID=45834&am p;PN=1 Any pointers would be thankfully received. ------------- Sam. the original "not for profit" organisation. 
http://www.samleverifa.co.uk - Independent Financial Adviser In Buckingham http://www.samleverifa.blogspot.com - My Financial Blog |
Replies:
Posted By: UweM3
Date Posted: 26-October-2009 at 08:52
|
that's a tricky one! I think it will be best to take it to a main dealer or specialist to get the computer plugged in first to see if there any codes etc.
Next to take caliper off and check pistons/pins for free movement. Good luck! ------------- E61 520d, slow and buzzy but my wallet likes the mpg..... |
Posted By: stevesingo
Date Posted: 26-October-2009 at 13:08
|
Have you tried it with the TCS/DSC turned off?
Can you pull the ABS fuse and try it without ABS? This will tell you if it is a ABS/TCS/DSC system fault or a mechanical fault. Steve ------------- 1990 Sport Evo No.47 Motec EMS |
Posted By: SFH3L
Date Posted: 29-November-2009 at 17:25
|
OK, I thought since I had asked you all for answers, I'd give you the end of the story. I got the fault codes ready by a local indy and nothing showed up. However, I was scratching my head with the bonnet up on the 325 and the CSL back to back and noticed something that should have been obvious to me all along. I knew that my car had had work done in the right front area as a result of an accident, but not much more than that. As it turns out, the DSC/ABS unit had obviously been removed and either replaced or refitted at some point and the pipes had been connected incorrectly on refitting! There are two feeds from the master cylinder and one of them was interchanged with the take-off for the rear left caliper. As far as I can tell, this meant that the brakes felt OK when under normal use but th emoment the ABS engaged the total pressure from the master cylinder was channelled to the rear left caliper, with no electronic interference at all! That was easily remedied once I knew what I was doing. It is a shame it toasted a nearly new rear tyre though, as the 255/35/18's aren't exactly cheap! Thanks for all your ideas and sorry for not updating sooner. ------------- Sam. the original "not for profit" organisation.
http://www.samleverifa.co.uk - Independent Financial Adviser In Buckingham http://www.samleverifa.blogspot.com - My Financial Blog |
Posted By: rebel.ranter
Date Posted: 29-November-2009 at 20:38
|
Thanks for coming back with an update.
------------- 1996 320iC: 2002 525iA Sport:  
|
Posted By: UweM3
Date Posted: 06-December-2009 at 14:02
|
holy crap! ------------- E61 520d, slow and buzzy but my wallet likes the mpg..... |