Brian McL

I'm replacing the engine mounts on this 92 400E and in removing the passenger side support I have damaged the knock sensor. Looks like I just broke the case, which is very brittle. To replace this unit in the future will require removing the support mounts again, which I do not want to do !!
If I just leave it the way it is does it create any driveability issues...assuming I only use the correct fuel.

whipplem104

Yes, it will cause issues. Codes and retard the timing.

Brian McL

One of the wires was broken, which soldered, then encased the whole thing in silicone. Fingers crossed...but what a dumb place to put a sensor!!