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Old 03-28-2013, 05:24 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
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 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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