SLK/R171: window noise
When sliding down the window (driverside) there is a knocking noise.
There is no noise when the window is going up.
The noise sounds like knocking or a deep/fast heart beat.
It's louder when I put my ear to the door. The noise is
coming from the door panel below the glass.
You can also feel the vibration of the beat when your
hand is on the window switch.
Driverside only.


