FAN STAYS ON FULL HIGH EVEN WITH IGNITION IN OFF POSITION.
1999 Mercedes Benz CLK320
Must remove fuse to stop. Can not turn down or off Air c. Works great.
Tuesday, April 17th, 2012 AT 1:30 AM
I was thinking the ignition switch may be bad, but if you have no control over the speed, it sounds more like a problem with switch. Check to see if the fan stops if you disconnect the switch. If it does, the problem is before the switch. If it doesn't, my guess is you have a ground to power after the switch itself.