From what I can recall other devices on the circuit include:

Back up lamps
Heater Valve
Water Pump - Which I'm guessing is the Aux h2o pump
Heated washer nozzels
Climate Control

I think there may be one or two other devices I cannot remember here at my desk and wife has the car. Will update any missing COB today 8-Jun-05.

For any one reading who has been here, is there any way to STOP THE HEAT. I've unplugged the aux h2o pump and heater valve but it's still pumping it out heat. Will removeing the PBU controller stop it ?

Mark

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1987 300DT 127K
1987 300TDT 283K (Sold)
1999 528iTa 75K
1991 300D 2.5T 214K - Dead Tranny
1984 300DT 375K (Sold)