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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 02-20-2011, 01:23 PM
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bluebee bluebee is offline
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Location: San Jose, California
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by GSned View Post
I have a friend who works for BMW who hooked up the car to the diagnostic machine which said it was a brake pressure sensor fault.
By now, you've seen Bill's consistent posts that the diagnostic machines can't tell you what you need to know because they're all hooked up wrong (I'm surprised we know that but the BMW technician does not know that - or - maybe the BMW tech knows something we don't know ...).

But anyway, I "suspect" you're wasting your time testing the brake pressure sensor (even though Carsoft told me it was that was what was stored in my car also, I learned to ignore it). To my knowledge, I don't think ANYONE here yet has actually needed to replace the pressure sensor. (If they have, they should come forward now - and provide proof with a before/after picture.)

Please post a picture of your flying-leads setup as you will be the FIRST person here to have done this so you should give back to the team and enlighten us.

Last edited by bluebee; 02-20-2011 at 01:31 PM.
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