The delay wiper works intermittenly -some days it works and some days it does not work - on my 94 E320 (180k). The wiring harness and OVP were replaced at 165k. The normal and high speed settings work. I have since moved to NC and it rains here quite often.

How do I go about diagnosing this problem? I thought to check the fuse/relay, but I am not sure which one as there seem to be more than one labeled as misc, etc.


Jim