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2012 Mercedes-Benz E-Class 3.5L 2dr Coupe RWD

2012 Mercedes-Benz E-Class
Trim Info:
Rear Wheel Drive, 2 Door Coupe, Subcompact Cars
17 (2011) mpg city / 26 (2011) mpg hwy
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November 2, 2013, 12:11 pm


Question: How do I fix bouncing door knob on front passenger side?

When I lock the doors with the key the passenger door knob jumps up and down very rapidly,

March 25, 2020, 2:03 pm

Larry T

Usually, you need to replace the lock actuator, to fix it properly. Another option that sometimes works, is to unscrew the locking knob (the part that is actually bouncing) and wrap a little tape around it to make it slightly larger in diameter. This supplies a little extra resistance. Screw it back in and try it. If it still bounces, but less, put a little more tape on.

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