Mercedes-Benz 500SEL Questions

Get answers to questions about your Mercedes-Benz 500SEL at RepairPal. Find solutions, diagnose problems and get back on the road.

Refine by vehicle
Choose your vehicle
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more

Intermittent starting, from opening the door with the key, that turned off the alarm, to starting the car intermittently, i suspect a problem with the immobilizer. Where could i fine a immobilizer switch

over. Shut off engine for about 60 to 90 seconds. Turn engine on and it returns to full power. Used to do this once or twice a year. Now it can be 2 or 3 times a day.
MB told me to follow this procedure in 1995.

I pull to the side of the road and shut the engine off for about 1 or 2 minutes and it restarts. What is the cause? I want it fixed. Used to happen once or twice a year. Now it happens about 3 times within a 30 mile, or less, drive.

I have had my Mercedes for over 3 years and i have had few problems in the past with the doors but not like i am now. I have tried almost everything i know to get inside the car, nothin seems to be working. I have also changed the battery a few times. Any feed back will be helpful

I'm thinking I can stick 2 flat objects in little slots on bottom of radio and it would come an american car...but Idk and would like some help so I don't mess nothin up. Thanks

My car has been sittin for a year and noe it won't get fire to kick it over

I have taking the car to different mechanics and they cannot find the issue. My car starts but when I drive it say an hour and gets hot, and turn it off, it will not start. I have to let it cool off to get back home. lol

The third brake light works but not the left/right lower brake lights

The back end is much higher than normal and it is hitting hard like the shocks are locked in place

car is running heat on and when i try to direct it to center vents it wont blow out blower fan is working does okay if i push the ac or blue button by vents but only operates on ac only all push buttons seem okay

Head light do work when turned on, just the rear light are off

Car has a hard bounce in the rear. Feels like a lowrider at times.

A new battery has been installed and I cannot lock or unlock the car. Is their a relay that might be burnt, or a fuse.Also the heated seats are coming on and we cannot get them to go off..Help!

How hard is it to find the blower and is there a place you can do a test on it the fuse is good.


time they work but most of the time not.

air condition works great, when the hot car is parked shortly, I get heat in 2 side air registers mixing with the cold air. when it happens I shut down the 2 registers and divert the cold air to the center registers by switching on the extra air blower.
The back seat air condition duct delivers cold air all the time, no problem there. I live in Florida, do not have to heat the car it is hot enough, that is the reason I want to bypass all the hot water that goes to the cabin. HELP

I am not sure what happened it went in as it wouldn't go into reverse any more then I get it back & it wouldn't go into Drive or reverse it is a rather expensive repair I paid for the repair & like I said I got it back & the problem got worse should I have to pay for it again or should my initial payment cover it since the problem hadn't resolved & is this a known issue for this particular make/model and year of Mercedes Benz's?

Where do I look on the engine to add antifreeze?


they work but they won't go off some times the do stop you never know what there going to do.

I want to know the best way with least resistance and the least amount of damage to the car

if it was an old rear wheel drive american car it would proably be the universal joint, what could it be in this car, the stomp in coming around front seat center i think. This is a knocking sound.

Car starts and runs but it runs rough and then it cuts off in less than a min. getting fuel and fire just fishing here for some help

There is no cable wondering if there is a sensor or what possibly could be the problems..thanks

I have a new tumbler with key inserted. Already removed the black ring on dash. Now the ignition is moving up and down. Don't see any way to get out. good no problem