I just bought this Mercedes and everything is great about it except...The blower motor does not turn on. I pulled it out and bench tested it, works great.
The strip fuse is intact, All fuses (4, 6 and 7 checked twice) tested with multimeter and good.
All the vent flaps and such seem to move correctly.
When driving air comes out vents, its the breeze I guess.
I bought a new regulator before getting some brains and found out I have no 12 volts to the firewall block behind the brake booster. The yellow wire shows some voltage. Black shows none (which I hope is good because its a ground right?)
Well now that I have spent hours and days, and some hand scrapes on this, is it the climate control unit? or the ignition? or a melted wire?
Any help would be appreciated, I love this car but the blower motor will keep it from getting licensed for sure.