20 Most Recent 1991 Mercedes-Benz Mercedes Benz 500 Class - Page 5 Questions & Answers

You have a leak!

this car is equipped with an electric cooling fan, best guess is it is not working, that is why it gets hot when idling or driving around town in stop and go traffic. but when you get out on the road it cools down because their is more air moving through the radiator. the fans should come on at around 222 degrees take a look i bet they are not coming on at all.

V8, think your right
Misfires all the way down drivers side

Not a Mercedes guy,so I guess you have
a bad ignition module effecting one side?

You can't check the fluid in you shock absorbers if they are worn out they just need to be replaced.

Check in this site: mercedes/service_and_parts/owners_manuals

Hope helps (remember to rate this answer).

1) Fuse.

2) Connection.

3) Bulb.

The fuel level is ok.But fuel pressure.It can be low.If the fuel pressure is low then it will not start frequently as required.Get the fuel pressure checked.If the pressure is low then this problem is related to faulty fuel pump or fuel filter.
as you spray fuel the fuel directly gets to the fuel rail and car starts,but when the aerosol is not sprayed then the fuel is not passing to the fuel rail and car is not starting.After few tries the fuel gets to fuel rail/fuel line and car starts.So check the fuel pressure,also get the fuel line and fuel rail checked.-----------Also see if spark plugs are wet or moisture collected or spark plugs worn out Then its faulty spark plug causing this problem.------------
This should help.Thanks.Helpmech.

possibly faulty airmatic compressor witch is located under the front right bulkhead, It could do short circuit that could be the reason battery get damaged because of it getting high amps all the time when it's working it can harm to battery check airmatic compressor now it should be dead,

First ignition on, then have a look on steering wheel you have two multifunction switch group on your steering at left and right, press right arrow key on left switch group, keep eye on instrument cluster display then get setting menu and press OK key on same switch group, then use up and down arrow keys to select time then press OK, and now you have to operate right hand switch group + or - key for increase or decrees time.adjust the time or date you need then press OK, is this information helped you?

You must go to the dealer workshop for replace shock in your car, after replaced shock in your car must need to re calibrate the airmatic suspension through Mercedes diagnostic CPU otherwise It won't be working properly,

The suspension has a leak somewhere and/or the airmatic compressor has stopped working properly. You need either the Mercedes star diagnosis system (SDS) in order to access the suspension control module to tell it to raise the vehilce or you can try to trick it by jacking up the car so it thinks it's sitting at the correct ride height. But as long as the display reads a warning it won''t allow the airmatic compressor to run.

check the fuel pressure

What do you mean by "the car is shaking"? Are you refering to when the engine is running at idle(or standing in gear) or while driving down the road? Also, what year and model is this car?

drivers side open door end of dash ,a cover ---

Here is the firing order diagram for that vehicle and engine.

There are some possibilities that you will have to check out. As you mentioned that fuse burns out.So what you try first is replace the fuse with bit high ampere fuse .Then check out.Is it still burning or working with high ampere fuse.But if the high ampere fuse is also burning then the blower fan motor and fan plug connections needs to be checked.Any of this is faulty and getting over heated and this is shorting the fuse track to burn out.The voltage at blower motor and fan plug will be exact 12 in meter. If its low or no voltage that part has to be replaced.but first you try out with high ampere fuse. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Hello. If you are mechanically minded and enjoy crawling under vehicles you should begin by checking the fuses that control each area and then the ground wires. With the ground wires you should remove each from the spot where it is screwed or bolted to the frame and then use emery cloth to clean the frame and that ground wire connector to bare metal and then reattach. IF you are not into these things I recommend that you look in the yellow pages for a local autoelectric repair shop. They have the diagnostic tools, know how, and equipment to solve your problems in no time flat. Joe

The fuel pump and filter is located on the left side of the vehicle, rear, just in front of the left rear wheel. If there is no fuel getting to the CIS system, it is more likely that the pump is in trouble. Pressure is very critical in these systems. Let me know what else you need. I know these cars quite well.