Hi there I have a1987 300d I have intermittent blower moter. When it works all speeds and everything works good. I have checked the motor itself and the electronic speed controll. The blower usualy works first thing in the morning but when I shut if off in usualy will not come back on if I repeatedly hit the all the buttons itmay come back on. Usualy it will come back if I turn key on and off wile driving. But not always itsnot ignition switch I don't think because all power in fuse box always works. And doubt its the controll buttons since I have tried 2 others and it acts the same. Any body had this.
Thanks mike