Mechanical things can be replaced..
sure looks like a clean body.... wagons are very pretty and rock solid out on the road when in good condition...
This is your decision on the price... but they are not making any more of them...and the condition of most is getting worse by the year...

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html