Q – The wipers on my 1990 C4 just stopped working. I have to drive the car so I am afraid to get stuck in the rain. I checked the fuse and it is fine. Gary
A – The most common problem that I have seen is dirty contacts in the switch itself. I have had some success by removing and cleaning the contacts but first things first. To make sure that the problem is not the motor, remove the intermittent wiper relay in the fuse box. If the wipers work, you can then drive the car until you can have the problem fixed. You will notice however, that they no longer park.
So assuming your wipers now work, you could have a bad switch or failed relay. My vote is to replace the relay first with a known good one and see if everything goes back to normal. The relay is located in the fuse box under the hood and identifying it is easy. The number is 928 615 101 01. If the wipers still don’t work with a good relay plugged in, you may need actual diagnosis and on your car, with the air bag and all, I would leave it to a professional.
On my car, (older Carrera) my intermittent wipers quit working and the park function failed at the same time. My cheesy solution is to park them wherever I want. For me, being vertically challenged, I like them to park on the right side of the windshield rather than the left anyway. On my personal to do list, intermittent wipers are a relatively low priority. – MC