No Heat on Passenger side [Archive] - Bimmerfest - BMW Forums

: No Heat on Passenger side

ND 540i
12-05-2009, 12:24 PM
I have a 1994 540I and i have heat on the passenger side but no heat on the driver side or rear vents. I checked the water pump and both coils seemed to be working correctly and they have 12 volts. Both of the hoses are hot to the touch. Any Suggestions?

12-11-2009, 03:43 PM
Is the controlpanel ok?The right side knob seems not to function.I would say that if the left side is working then it can only be the the knob on the panel.Replace it and then it might work?

With the rear vents you mean the vents in the centre console?From there you only get cold air never heated air.The vents for the rear side heated air are under the seats;)