The wipers on my 2002 D90 td5 have been giving trouble. First, the park packed up, also intermittent. Today they failed altogether. I found the 15 amp fuse had blown. Replaced the fuse and it blew again when I turned on the wipers.
I have now removed the motor and dissected the park control relay (in the small plastic box on the side of the motor). I am surprised that this is operated by a plunger bearing on a cam inside the motor with simple metal strips and contacts inside the relay!
One of these strips is broken (I'm guessing I did not break it when opening up the relay!) and the interior seems a bit oily, presumably from grease leaking from the wiper motor. I haven't tested the wiper motor yet, but I wonder if the strip of metal floating around inside the relay could have shorted something? Anyone experienced this problem before? I've done a Google but nothing significant comes up.
Derry