We just ordered a minivan for my wife. She currently drives an '87 300e. I love that car and don't want to sell it, so I need to find a way to save on some of the repair bills and do it my self.

What is a good repair manual for an '87 300e (W124)? I saw one at Performance for $30 called Mercedes W124. Does anyone have this and is it any good? I can't afford to buy the $150 cd because of the new van....