20 Most Recent 1988 Mercedes-Benz 300 Questions & Answers

check your buttons lift centerconsole look for bare wires cap or tape up. get buttons at junk yard or try to fix yours get goo gone open switches with small flat head clean springs and ball bearing. be gentle plastic insides break easy these switches break all the tim e go to junk yard and stock your pockets full

under rear seat

First try bashing the bolt head straight downwards. This may loosen the corrosion in the threads. Take care not to hit surrounding structures. Next try a large impact wrench (you can hire them) with a high strength socket which is a good fit. Take care the wrench is set to run in the undo direction. http://s244.photobucket.com/user/teawins05/media/IMG_3862.jpg.html

You are not actually adjusting the air flow, just the fuel distributor's response to air flow. This video walks you through how to do that: Duty cycle measurement on Mercedes W124 diagnostic socket faulty control...

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Check your fuel filters

That sounds like your brake wear or brake operation warning light. You might have low pressure or air in your brake system. Most likely, your brake pads need replacement.

Should be on the passenger side rear frame rail.

because its worth more as scrap then to reinsure. just buy it back from the inc company.

could well be a balance weight on the inside rim of wheel just catching the brake caliper, take wheel/s off and look for signs of rubbing on the wheel and the caliper , the caliper will be the highest point so would be the part that i'd expect to come in contact with something

try benzworld.org, or peachparts forum

The 'idle control' on the 300e is bolted to the second intake tunnel and is a large zylinder with a 2 pole wire connection on one end and a hose connection on the other end. It is NOT ADJUSTABLE.

Check your fuses by removing them one at a time but be certain to remove the battery before you start removing them since. Should you have a volt meter, turn on your ingition then check for 12V on eather side of each fuse. The fuse with 12V only on the one sideis open-circuit.

sounds like plugged heater hose or cracked line,but try a new thermostat first if you see no leaks..check water level in radiator..