Hi,
I have a '95 E420. I recently looked at the box in the engine compartment, passengers side, that contains the 4 ECU's. There is a hose coming into the bottom of the box from the firewall. I assume that this is cooling air for the electronics. Does the blower for the Climate control system have to be on before cooling air is circulated, or is there another blower motor some where?
Thanks,
Anziani