C Klasse Windshield Wipers Not Working

I had similar symptoms in my C Klasse. Check the combination switch. It controls the car wipers, turn signal, and cruise control. A faulty switch can cause intermittent or complete failure of the windshield wipers.

Combination switch you say? Where is that located?

It is on the steering column. Disconnecting the connector and performing a continuity test of the wiring harness may reveal the cause. You will need access to wiring diagrams. Otherwise, a workshop will likely swiftly resolve the issue.

Thanks. A shop fixed it for 95€. It was indeed a defective plug connection.