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Old 03-28-2013, 04:24 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,062
Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by Jason5driver View Post

Ever think about making a better/ less complicated Coolant Expansion Tank...?
He could start here:
- Does anyone have a BMW description of HOW the E39 M54 expansion tank actually works?

Diagram courtesy of JimLev on 3/27/2013
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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