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

i have a 84 300D and the floor is rusted out.. i was wondering if the 126 chassis has the same floor design. Since I wanted to cut it out and replace it, and the only floor I will have access to is from a 126 chassis. Thanks!

Hi guys, I don't plan to take this forum off on a marine tangent but I have just bought a small 1985 motor sailer powered by a marinised Mercedes OM636 which appears to have had very little professional service, ever. Sticking to the similarity of the engine to all the older four cylinder diesel Mercs I am confident that the Fast Start Glow Plug conversion is an immediate requirement as she is a very slow, and then lumpy, starter. My question then is, what special tools (if any) are required to remove and decarbonise the precombustion chambers? Obviously I will have injectors serviced etc but what other matters should I be looking at whilst picking out the black bits? Which of the manuals you have produced will be the most help to me in getting this engine back up to spec?

One thing I've never tried to mess with myself is A/C. The mechanic who recently checked out my non-functional system said the compressor was ruined because a previous owner had converted it from R12 to R134. This didn't surprise me, based on what I've read on these forums, but what did was his categorical remark that replacing it with a used or rebuilt compressor wouldn't do. That struck me as unrealistic and perhaps also just mistaken. Can anyone with experience with used or rebuilt compressors confirm or deny whether these are a viable option on old Mercedes?

It seems that I have a leaking fuel injector on my '84 W123; there is diesel fuel in a damp puddle all around this one injector after driving @ highway speeds. Is it possible (for me)to remove & correct this? If so, do I need to buy a whole new injector now? Thank you, Kieran-