I'm looking at a 1990 190E 2.6 (180K) for my daughter. So far I've spotted that the blower motor doesn't work and the belt tensioner needs to be replaced (has been welded in attempt to repair). It also has the standard front timing cover leak (not too bad), but the rear engine is dry and the coolant is clean with no signs of any oil in the [original?] coolant tank. To his knowledge (3rd owner, no records) it's never had a head gasket job. Very surprising to me.

With the blower not working I can't assess the condition of the climate control, or the heating system. So I was wanted to see if I could find out quickly if the W124's and W201's use the same unit. If no one is sure I'll just compare part numbers on the car part sites.

Any other notorious W201 problems I should check?