ABS Light

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   I'm new here and need some help. my '87 M635 goes nicely, but the ABS warning light comes on every time at 82 mph. The rotor wheels have been cleaned. Is there anything else I should look for before I start the laborious process of changing out wheel sensors?

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malcolmw Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17-September-2011 Status: Offline Points: 8	Post Options Post Reply Quote malcolmw Report Post Thanks(0) Quote Reply Topic: ABS Light Posted: 23-September-2011 at 19:29
	I'm new here and need some help. my '87 M635 goes nicely, but the ABS warning light comes on every time at 82 mph. The rotor wheels have been cleaned. Is there anything else I should look for before I start the laborious process of changing out wheel sensors?

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Howard Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Moderator Group Did I say thaaaat? Joined: 14-October-2002 Location: United Kingdom Status: Offline Points: 735	Post Options Post Reply Quote Howard Report Post Thanks(0) Quote Reply Posted: 12-April-2012 at 17:00
	Two possibilities come to mind. 1. The wheels are unbalanced and at speed this is affecting the pick up of the rotor by the sensor. 2. The rotors have worn down over the years and as a result they are not picked up at speed. Should only be a problem on track at 82mph! (joking)
	1963 700 LS 1988 635 CSi 1990 M635 CSi no longer! 2001 E38 728i Individual http://www.tyneships.co.uk

Indian Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 29-March-2009 Status: Offline Points: 78	Post Options Post Reply Quote Indian Report Post Thanks(0) Quote Reply Posted: 13-April-2012 at 10:06
	How come the ABS roters wear down? They just magnetic pick ups Have just cleaned the ABS roters on my 140000 mile 1986 E23 and they are like new

Howard Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Moderator Group Did I say thaaaat? Joined: 14-October-2002 Location: United Kingdom Status: Offline Points: 735	Post Options Post Reply Quote Howard Report Post Thanks(0) Quote Reply Posted: 14-April-2012 at 08:07
	I had an 84 635 CSi and the metal ridges on the rotating stub became so small after 6 years and only 75K miles that I had to replace the stubs. Perhaps later cars have bidder ridges?
	1963 700 LS 1988 635 CSi 1990 M635 CSi no longer! 2001 E38 728i Individual http://www.tyneships.co.uk

Indian Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 29-March-2009 Status: Offline Points: 78	Post Options Post Reply Quote Indian Report Post Thanks(0) Quote Reply Posted: 14-April-2012 at 09:49
	Could the problem on malcolmw car could be loose or rusty connection on the sender unit and vibrates with unbalanced wheel???