I've noticed that my recently acquired W124 is making a clicking/ticking noise when reversing.

The car drives perfectly other than this and it doesn't happen in forward gears. Gear changes are smooth up and down the 'box.

This only seems to happen after a cold start. After the car has warmed up the noise quietens significantly, to the point where it can no longer be heard.


The car has 120k on it, and is in great condition overall. I've done 1000 miles in the past week, and it's never missed a beat. Great long distance car!

Any ideas?