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1995 Mercedes-Benz S420 Questions

Get answers to questions about your 1995 Mercedes-Benz S420 at RepairPal. Find solutions, diagnose problems and get back on the road.

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53
questions

This has been an on going problem for a couple of years, I've replaced the ICM numerous times, along with trottle body and it reapears after a hefty bill at the repair shop, now my mechanic informs me that it won't communicate with his scanners..I'm at a complete loss, any help will be Greatly Appreciated, Thanks Russell

Replaced the resister. Blower continues to run w.hen car is off. Have to unplug resister to shut off. Heat, air conditioning, blower and controls all work great, except for blower not shutting off when car is turned off.

Mercedes S420
Passenger Window inches up when closing, rear passengers window inches up, passenger side interior lights, rear tail lights stay on, short in headlamp switch, no radio, no electronic back seat headrest adjustment, sun roof sporadically opens. One owner, original 65k mile sat in garage since 98.
When Starting- engine turns over, very loud clunk.

When I apply the gas it decreases everytime.

new wires high temp. new spark plags . new coil. please help me . henry

After sitting overnight it starts right up.

after waiting for it to cool off about 30 minutes to an hour it turns back on, not sure what is the issue has anyone else had this issue ?

Mercedes-Benz local dealership suggests that the replacement of pads, rotors, sensors and calipers must be done by the dealership due to the specialty tools and mechanics of the brake system. Is this necessarily true or can a certified mechanic at, say a GM, dealership do the work

Steering is so stiff I cannot drive. I need to add power steering fluid to see if that is the problem

Rough idle and light tapping noise

fan stop blowing on ac.

ac on but no air blows out, first the climate control button got stuck. kept messing with it freed itself but air stopped working