I have a Mercedes 1995 C180 which is giving me a headache. The problem is a recent one, and is basically that the indicators and wipers sometimes fail. The strange thing is that the problem only surfaces when I've been driving the car (for 20mins+), shut it down and then tried to start it again (for instance going to the supermarket). And the likeliness of this happening depends on for how long I've been driving the car. Both the indicators and wipers would fail. Sometimes the wipers would kick in even without being manually triggered (there's no rain sensor on the car). It'd take a few tries to switch them off.
Any thought appreciated.