Hello, I have the following facts: With our Arosa, BJ 2002, engine identification letter AUC, the windscreen wiper is constantly running at the front, no matter which step is set. The windscreen wiper is no longer running; only windscreen wiper water is sprayed. After the battery has been disconnected and clamped, the windscreen wiper runs without any rest after a short delay. I changed the relay 19 for another (used) one, then everything went as described above. Is the used relay probably defective or can the error lie somewhere else? Thanks already…