I HAVE A 1994 S 320, I KNOW MY BLOWER MOTOR OR THE RESISTOR IS BAD, CAN SOMEONE TELL ME WERE THE BLOWER MOTOR IS LOCATED ON THE CAR?

 

W140?

front right... rear engine compartment. remove that air duct.

 

Open the hood, and locate the oblong piece of plastic which is at the base of the windshield, it has a couple of hoses going to it and four or six phillips head screws. There is also a sensor on the drivers side and two drain hoses. pull the hoses off gently, and remove screws, lift the lid up and away. You will see a filter and the blower motor and regulator are below thaton the fan housing. It is a solid state regulator and it is in the ground side of the motor, no fuses either. The regulator is a common failure, but it also could be a number of things that send it a signal. I would change the filter while in there, but be prepared for sticker shock, so shop on line.
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