What Causes Severe Shaking When Reversing a BMW?
2 Answers
BMW reversing shaking severely reasons are as follows: Video cable too thin: A too-thin video cable can cause severe body shaking when reversing, requiring replacement of the video cable. Low reverse light voltage: If the reverse light voltage doesn't reach 12 volts, you can install a relay, using the reverse light power to control the relay to supply power to the reversing camera from the front. It could also be due to personal driving habits, such as the clutch or handbrake not being fully released. Engine speed too slow: Try slightly increasing the throttle when reversing to see if the situation improves. Clutch plate wear: Poor engagement of the clutch plate can cause noise, which can be resolved by adjusting the clutch. If the clutch plate is too worn, it will need replacement.
Recently, several friends have asked about their BMWs shaking violently when reversing. As someone in the car repair business, I've seen this a lot, and it's mainly due to unstable engine idle. Throttle body carbon buildup is the most common culprit – BMW engines suck in dirty air, and over time, oil deposits clog things up, causing idle speed to fluctuate wildly. When reversing, it shakes like crazy. Aging engine mounts are another frequent issue. When those rubber pads wear out, they lose their cushioning effect, and the engine rocks violently during reverse starts. For automatic BMWs, a faulty torque converter can also cause shaking – when the transmission fluid gets sticky and ineffective, power delivery becomes uneven. Don't think it's a minor issue; delaying repairs might damage the transmission. I recommend going to a professional shop immediately for throttle body cleaning or mount replacement. The cost isn't high, but it'll give you peace of mind. In cases I've handled, about 80% can be fixed in one go.
