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Old 01-24-2013, 05:51 AM
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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 CurtSmall View Post
Where are the mounting holes for the two knock sensors?
Type /knock sensor F3 into the bestlinks, and this comes up, which may help:
- How to understand the piezoelectric knock sensor operation (1)

In addition, if that doesn't help, there 'should' be a photo of the knock sensor in-situ here:
- Where to find in situ pictures of common parts of the M54 engine (1)

Please help out by snapping a photo of each of the locations of your knock sensors so that the rest of us benefit (personally I've never dealt with them so this is the best I can offer).
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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