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Originally Posted by electricalserv x5
Hi, I have been chase around vibration during cold start and found a bunch of little problems like 2 strip bolts on my throttle body, and motor mounts where shot, I changed the spark plugs and coils to and really had little change , then I found this article , Looks like i Finally discovered BMW V8 secret!!! [Archive] - Bimmerfest - BMW Forums and I had the work done ,Ijust got the car back from the shop.The Dynamics of the engine is back like new. 
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Doing the Vanos on these vehicles is a great move that restores incredible performance that is hard to detect as those Vanos seals deteriorate. I love the way these engines run once they have been returned to top condition. I have to admit the vibration on the engine mounts were killing me and when I changed them all was restored.