Welcome to the world of diesels, Of course no one would want to get a car under these types of circumstances. I am also new to diesel ownership, 3 months and counting. Though my father has had his MB 300D for 5 years. I also own a "SD", except mine is a W116 (1980). You have a W126 chassis, which I have read is the best chassis MB ever made. The best thing you can do for your engine is change the oil often and stick with OEM filters. These filters, MANN and Hengst, can be bought from our hosts here. Just go to the "partsshop". There are others on this board that can give you any model specific info. This is definetly the place to learn about MB diesels, or for that matter, anything MB. Agai welcome to the world of Mercedes and diesels, and happy New Year.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member