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SharkHead
Join Date: Oct 2009
Location: Pacific Northwest
Posts: 1,027
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I read about combustion chamber carbon buildup that can cause similar issues. Here is a link to one method... BMW E34 Ping Preignition
Might want to do some more searches.
Not sure about VANOS noises...
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'79 928, 85k Opal Metallic
'99 BMW 540i, 97k Titanium
'72 BMW 3.0 csi, 85k km (euro Deutschland '82) Taiga
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