What are the reasons for BMW 5 Series shaking?

1 Answers
VonAmir
07/30/25 3:57am
BMW 5 Series shaking may be caused by: 1. Excessive carbon deposits: Severe carbon buildup in the engine cylinders can lead to spark plug blockage and valve blockage, directly causing vehicle shaking during idling; 2. Fuel supply system failure: Unstable fuel pressure can easily result in inconsistent mixture concentration, not only causing shaking but also leading to unstable idling; 3. Aging engine mounts: This is also a very common cause of shaking. If the engine shaking becomes increasingly severe but the power does not weaken accordingly, it may be due to issues with the engine mounts; 4. Misfiring: This is the most common cause of engine shaking, with the problem lying in the engine ignition coils or spark plugs. If the ignition coils malfunction or the spark plugs fail to fire for some reason, the car will exhibit shaking.
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