Hey guys,

I got a 1991 Mercedes 300E. The blower motor doesn't work when the car is on. However, when you FIRST start the car it'll run for a second then stop. Now the facts are: I have been starting the car with a screw driver for awhile since the ignition tumbler was on its way out. One mechanic guarantees that its the ignition switch that is causing the motor not to work. Another thing is, the wire that fuses the circuit is outside of the fuse box, i believe its a 25 amp in wire. Anyways previous owner said that the wire had problems and i can see where it was taped back together. I checked the fuse and it is fine, and the wires are connected properly. My question is, do you think it is a good guess that its the ignition switch? And where is the fan speed regulator, because im pretty sure only one setting works if not any (hence a problem). I have the full online service manual, so you can reference that. Any help would greatly be appreciated, its cold out! Thanks