"brake LT circuit failure" ESD regelt
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=4647
Printed Date: 03-May-2024 at 18:41
Topic: "brake LT circuit failure" ESD regelt
Posted By: m3matty
Subject: "brake LT circuit failure" ESD regelt
Date Posted: 19-December-2003 at 21:51
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The OBC in my E34 540 keeps bonging at me saying "ESD Regelt", Brake LT circuit failure", "see owners handbook". The only thing is that the brake lights are fine and the handbook doesn't mention anything about this. It's getting really annoying. It started off being a rare thing but it happens nearly every journey. Anyone got any ideas? |
Replies:
Posted By: BOYBIMMERM3
Date Posted: 20-December-2003 at 00:49
| even if the bulbs work remove and inspect them. put the bulbs against a piece of white paper and see if they are discoloured. if they are replace them. if not i would go for a brakelight switch next. |
Posted By: e34m5
Date Posted: 20-December-2003 at 15:30
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"ESD Regelt" is something to do with an electronic lock on the differential. If you do not have an electronically controlled differential i think you may have a problem with your Check Control Module.
Miles -------------  
1991 525i Sport Manual http://forum.bmw5.co.uk/index.php?showtopic=3552&st=0"> 
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Posted By: Flash
Date Posted: 20-December-2003 at 20:34
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try and get hold of another LKM, mine died and i kept getting bulb failure messages, and sometimes scarier go to dealer type messages..
17 quid from the local scrappie (180 BMW) and its fixed. if you can borrow one from somewhere to make sure first it might be a good idea. 
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Posted By: m3matty
Date Posted: 24-December-2003 at 10:59
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Thanks for the replies. Is there a way of knowing if I have electronic diff control or do all cars with ASC have it? The strange thing though is that the "ESD Regelt" comes on at the same time as the "brake LT circuit faliure" so I assumed they were related.
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