W110 W111 W112 Sedan, BENZ AID - COMMON QUESTIONS AND ANSWERS

Biodiesel additives needed? + warnings

I converted the fuel lines on my '82 300DT and plan to run B100 biodiesel consistently. I heard about the need for adding lubricity to low sulfer petrodiesel but does anyone know if too low of lubricity is a problem with biodiesel? The only fuel addative I have used so far is a product called "Killem" to clean out the fuel tank.

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380 SL stalling

My '84 380 SL stalls when it has been run a while and I come to a stop. The car generally idles at 500 rpm when the car is in gear and the engine is good and warm. This seems low to me. I think I may have a bad idle speed control unit but am hesitant to go out and buy one until I am confident that is the source of the problem. The car runs very strong otherwise. Any tips or suggestions out there would be greatly appreciated.

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300D turbo running hot

What is the normal running temp for my 83 300D? Right now it gets hot quickly and moves up above 90C and will approach the 120C point if I run the AC. I've changed thermostats and flush the radiator and put in new coolant along with a water wetter. Seems to run somewhat cooler but not what it should be. The electric fan used to come on but doesn't now. What is the most common thing I should look for if the fan doesn't come on? Thanks, Dan

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190D fuel guage and temp. guage stopped working.

I had not driven my 190D in a couple of days and then the other evening when I went to town, I noticed that both the fuel guage and temp. guage had quit working. I just bought the car and drove it home a 1000 miles and everything worked great. I have not yet picked up a repair manual. Just wondering if someone could point me in the right direction to start troubleshooting this. Thanks.

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trouble areas of 300sd to watch for

Just want to save some other 126 owners some pain.When I lost the plug in to the signal lense,if the wires touch they will fry your signal flasher.Two,the large red and yellow wires coming out of the fuse box get hot and melt together over time.It goes to the glow plugs.I had to pull the wires apart and rewrap with tape.Three there is a replaceable bulb for your fog lamps,about $4.

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1990 W124 chassis 300 te wagon self leveling rear suspension

Hi- my 1990 300te wagon has the self leveling (hydropneumatic) rear suspension. The ride in the rear is very stiff/harsh- feels as if shocks are not functioning. I googled this and found that almost always the cause is bad air cell accumulators in the rear and that the shocks themselves seldom go bad. The air cell accumulators are only about $100 each.

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