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Old 11-24-2012, 02:01 PM
QAfred QAfred is offline
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Location: Panhandle of Florida
Join Date: Aug 2008
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Mein Auto: 328i, 330ci, R1200C
If that aluminum heat shield you refer to has oil residue on it you just confirmed the VCG has an oil leak. Look your parts up on realoem and you can see the illustrated parts breakdown (IPB), for your model.

The new VCG will also have the gaskets that seal around each spark plug included, but the rubber washers, that go under each bolt, should also be replaced since these are what push down on the cover to seal it. The VCG bolts bottom out when tight so be careful not to overtoque and break them, in this case when the stop turning they are as tight as they are going to get- so stop, and with new washers you will seal better and may not bottom out.

You do not necessarily need to change plugs just because you are changing a worn / leaky VCG.
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