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Old 05-20-2010, 03:12 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 Shires View Post
FYI the part numbers may be different for the M54 engine (different style of pulley I think.
It would be nice to find a diagram of the 2002 525 pulley system as I looked and can't tell where the two belts seem to go.

Plus, they lowered the number of ribs from 5 to 4 in cars built after 9/2002 (I have 5 valleys, 6 hills, which I think they call a 5-rib belt) so these pulleys change even within the model year!

Methinks we should get a group collection up so cn90 can buy a newer E39 so his pictures will correspond to all our BMWs!

I found I think a decent picture labeling half the parts, here:
A: Alternator belt tensioner pulley
B: Alternator belt idler pulley
C: Alternator pulley
D: Power steering pump pulley.

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