Hi pete ,
I`m not trying to scare you BUT , my wiper started doings this , on off on off , then it would just keep going , then on off on off , had a mind of it`s own , Untill it caught fire and filled my car with smoke , I was at spurs v posh haveing fun . Got a call from the wife "the cars on fire " The complete car went into limp mode and was left at the side of the road , once i return about 6hours later the car still stank of smoke , i had to remove the elec supplie to get it running to drive home . I`ve how fitted a new motor but it was 3187 + vat !!!!! .
It played up for about 6 weeks then it popped , once i stripped it down all the inside had melted and shorted out . just thought i`d let you know .
Just seem my older post asking for help , a4 52 avant
chris