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Old 08-29-2012, 10:08 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
I could guess the three most common reasons for a blown E39 engine are overheating (by far), DISA, and hydrolock.

On that third topic, hydrolock, this thread opened today has some useful information:
> E39 (1997 - 2003) > Squealing brakes and Rough Idle

Originally Posted by Topaz540i View Post
this is a common problem. the drain tube in the cabin filter clogs leading to a brake booster sucking water. Many people have experienced catastrophic engine failure due to hydrolock.

Do not even start the car until you get the water out. You risk hydrolock blowing your motor up. You may find more info on this at as this seems to pop up about once a month there.
Please read the suggested threads and add value, either by pictures or by descriptions, so the next person stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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