Hello,i have 1991 MB 300e with automatic climate control.the problem is when i have the heater on while the light is On too the climate control is shinning for 20min and then it slowly dimms and the light goes off but the heater works without a problem.when i switch the car off and then start it again the light on the climate control works again for 20 min and then dimms and afterward dies again.
but if i am driving with the heater off the light is always shining it doesnt go out.
pls.help