PeachParts Mercedes-Benz Forum - View Single Post

pawoSD · #2 04-06-2007, 01:52 AM

Raise the idle with the knob on the dash when you're using the A/C....should get rid of the almost stalling problem. As for the toggle switch....either just leave it on when driving/using the A/C, or you'll have to look into wiring it back to the temperature sensor...which is located on the receiver-dryer unit out in the front right side of the engine compartment. Looks like a little tank with some tubes going into it. The switch is usually on there and clicks the fan on and off based on temperature. I'm guessing the sensor went bad and the owner opted to just make the fan manually controlled.

You may want to check your radiator if it gets that hot....it may be dirty or plugged or something. My temps went down by 15-20C with a new radiator....and the highest I've ever gotten it to go with the new one was about 86C going flat out on the freeway when it was about 90 outside....110C is way too hot. Mine usually sits between 80-83C 99.9% of the time.