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Old 06-03-2012, 05:06 AM
timarnold timarnold is offline
Location: Maryland
Join Date: Sep 2009
Posts: 914
Mein Auto: 2003 bmw 525i, 2005 X3
The blue twist plug is a cover plug that is removed to insert the flywheel lock to lock the engine at TDC when setting the VANOS timing.
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