20 Most Recent 1989 Mercedes-Benz Mercedes Benz 500 Class - Page 5 Questions & Answers

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.

Hi the wires that plug into the switch, locate the 2 that put the window up then switch then around and press the button this should put the window down.

If you revesrs the polarity of the motor then it will work backwards. hope that helps
regards
dan

at rear of the car near the fuel tank under the car.

could be several things from rocker arms on the valves to low oil pressure dirty engine internely what i would do is remove belts from engine start and see if noise is still there if its gone then check all pulleys for that same noise kinda tough to say with out hearing in person if the engine is gunked up inside look when takeing off oil cap if you see heavy sluge then do a coulpe three oil changes with an engine oil flush that may help it . also listen near timimng cover area for that noise when belts are off dont run too long watch temp gauge. hope this helps Thunderboltz

Look under your hood, you will find contact points for jump starting. If you have a battery charger, you can connect it to those jumper points, and that will give you enough juice to operate the trunk lock.

Hi.

Error codes will be stored in the PCM, and transmission error codes in the TCM.
The best thing to do is going back to the garage, reporting the problem, and scanning the computer control modules.


The error codes returned will tell you what the problem can be.

If the problem is transmission related, if the car was working OK before the last repair at the shop, there may be a wiring problem to throttle position sensor, TCM connector , or speed sensor. This can cause transmission troubles.

If instead the car is running rough at cold, then check wiring to AIT and MAF sensors, and look for problems in the vacuum system.

Does the rest of the electrical work and will the car start up and drive? The fuel cap has nothing to do with the locks and trunk not working, if the car won't start at all then you have a low battery, if the car runs fine and your locks and trunk won't open with the key or remote then check the fuses under the drivers side steering wheel and maake sure the battery in your remote FOB is not dead if you have keyless locks and trunk release

This is a common problem. The actuators that work the locks are actually very reliable, (but occaisionally go bad so I wouldn't rule them out). The most likely cause is a vacuum leak. Could be the tubing, (gets brittle and cracks with age), or connector. The hardest part is traciing the leak. Takes time and patience. I would start at the door or trunk lid and work backwards until you find the leak, then repair. If you need parts for this I also have a great source, has always proven reliable for me. Rick at Newton AutoHaus has several wrecks that he can remove parts from and ship, also has access to new ones, and a well stocked parts dept. He is a mercedes certified mechanic that left the mercedes svc dept and went out on his own many years ago. He can also help you on the phone if you get "stuck". Here is his #: 828-466-1759. Hope this is helpful. Good Luck!

This is one of the feature called easy access. You can go to the setting from menu at the buttons on your steerling wheel to turn it off then it will stay down. It is under convennient set up, go to steering column and select off.

It sounds like the cluster lost it's version coding and went to default mode. I would recommend having the cluster scanned for codes and version coded.

Check all fluid levels and stop at a local Auto Zone or Advance Auto parts store and have them read any stored trouble codes to indicate the problem that exists.

probably both
also you might need a thermostat

Try Ebay for the manual you need or if you can provide me with the year of the car I can give you more Ideas

Easier to replace whole starter motor. You didnt state the year of your car but try autohausaz.com for inexpensive replacement parts.

hello,seems your blower regulator or resistor is defective,hoping your blower motor is not stuck-up,ty

hi, open your hood,standing on front,right side with plastic cover,fine out the fuse designation,ty

probably a cooling fan on for s few minutes after shutting off engine

you have to check the battery of your remote control key,or get your spare key and try to open the car with remote.if the problem is not corrected,maybe the das control module is deff.better to send your car to your dealer,ty

i replaced all the bulbs back right rear lights now every time i push on the brakes the bulb light comes on please help me