W123, SVO/WVO parts

Hello, ( 1982 300TD ) Yes, when I turn on my climate controll, my heater is on- invariably, if I jog the little blue/whit/red wheel to blue it stays hot, and not just hot, but unbearably hot, I have to turn it off... any thoughts on the culprit? Thanks James

What are the exact micron ratings for the primary and secondary fuel filters for a 1985 300D?

Hi all. New member as of today, and today I also picked up my 2nd Benz. I have some experience with my 1971 280S, but today, I bought my first diesel. The cars rather amazing overall, for a black on black leather car with original paint. One owner. 200K miles. A few little problems that I already see answers and/or parts for. Here's my concern. The car is amazingly slow from a stop to 10 or 20 MPH. Then it's decent, much like a gas car. I see an unusual "part", seemingly disconnected in the engine compartment. It's like a little frame with heavy coils inside of it. What is that part??? It seems to perform much better once it's warmed. I know NOTHING of it's history aside from a clean VIN check, one owner, 400 miles in the last 2 years and it was probably garaged.

Hey All... I am new Mercedes owner...I just purchased a 1980 300D and am currently running B99. I have a few new filters and my biodiesel gas station (biofuel oasis in berkeley) has monthly seminars on changing filters and all that.