USASherlock

This has been a happy time for me this winter. My 2000 ML430 with 212k miles and high mileage badge has a new trick. Any time I turn the truck off the heat stays on. All winter I have been able to go into the store and come back out with heat pumping in my car. Not long trips of course.

I don't know what is wrong with the vehicle technically but the ML has certainly made me happy this winter. The new trick is a pleasant surprise.

Maj. Dundee

If your blower motor is working after you turn the eng. off, then your Blower Motor Relay, K21 is faulty.