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2005 BMW 325xi

Question: When I accelerate, my vehicle shakes/vibrates excessively!!

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Tony Terek, Mason, OH, July 11, 2011, 12:59
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At first I thought it was the engine; however, it appears to be something under load. Meaning it only occurs when I accelerate. Nothing when coasting. There are no diagnostic codes or any lights on! The mechanic I use thought it was the carrier bearing, which I had replaced! Yip, removed the enitre exhaust system, heat shields, drive shaft, etc. to replace it, balance it and put it back in! I've had the engine tuned up, inductor plates cleaned, the mass-airflow meter cleaned. Still have the problem.

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  • Answer #1

    Visitor, July 12, 2011, 09:34

    It's one of three things 1. A fuel injector.2. A coil. Or a spark plug.. your engine is miss firing.

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    Visitor, July 12, 2011, 09:41

    I would love to believe that to be the case; however, they did a complete tune up! Also, since they replaced the carrier bearing & rebalanced the drive shaft, the vibration and shaking is a bit different. The mechanic is now pointing at the "bushings" (all three) that hold the rear differential in place. Does this make sense?

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