W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

1981 240D Idling rougher after valve adjustment

Before valve adjustment, car idled fine. Immediately after valve adjustment car idled fine. Probably after 1,000 miles of driving, car idles rough at a stop in drive or in reverse but idles fine in park. Another change is that it has gotten cold. This was a florida car and not used to the cold. I did install a block heater from you which helped with cold starts.Turning the idle adjustment knob on the dash to the left increases RPM and helps idling.

1.How do I adjust the idle so it will run right again without having to adjust the idle knob on the dash?
2. Is it ok to drive the car with the idle adjustment knob turned to the left a little bit?

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82 300D: Starter slow/nonexistant, replacement needed?

I have an '82 300D. When I try to start it, especially when it's cold, the starter works very slowly and feels like it is about to die. Seems like a dead or dying battery, but tested it and it's fine.

However when I hit the gas pedal when cranking, it does catch and start. This problem is especially harsh when the car is cold.

Do I need to replace the starter? Is there something else I'm missing? This car is my daily driver and I use it to cart my kids around and get to work, so I'm afraid to be stranded.

Thank you!

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