Bmw E34 Heater Valve Diagnosis

If this doesn t work change the heater valve and the auxiliary pump.

Bmw e34 heater valve diagnosis.

My relatively new heater valve stopped working. In this video i go over what was wrong and show how i fixed it. Brand rating 10 75 hvac heater hose. If the heat will not turn off you likely have either a faulty heater control valve opens and closes the flow of hot engine coolant through the heater core or climate control panel output to the heater valve.

Bmw home bmw 5 series e34 1989 1996 ventilation a c heater system. Heater system page 2. Heater valve to left side of heater pipe 525i wagon 1992 95 heater valve to left side of heater pipe 535i sedan 1989 93 middle heater core. If this happens to you time to check the heater valve.

This is an easy task you need to remove the 4 bolts on top of the heater valve disconnect the wires and then pull the valve out. Bmw e34 and e32 have a funny tendency to loose the heat in the middle of winter. If i isolate the heater valve electrical supply on the valves themselves and feed 12v direct from another source then they switch off ok and the heater core goes cold. How to replace the gaskets in a bmw heater valve for e31 e32 e34 e36.