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Old 12-22-2011, 02:11 AM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 auto 130K
For the record, while researching how the secondary air system (SAS) works in this thread:
- E39 (1997 - 2003) > 2001 530i question...

... I ran across this nice cn90 picture of the reclusive air valve in the back of the 528i engine over here:
- E39 (1997 - 2003) > 3d Secondary Air Pump failure in 4 years!

Quote:
Originally Posted by cn90 View Post
http://www.bimmerfest.com/forums/sho...d.php?t=402816

#5 is the Electric Air Valve, located UNDER the Intake Manifold:

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