My BMW E39 has an intermittent heating problem. The blower works fine but the car does not heat up inside all the time. Climate control set at 22 degrees and blows out cold air. However, when its put on front screen demister (At full power) it blows out warm air as set on the climate control. Any ideas what could be faulty?
Heater valve body some have a pump which starts to pack up or the rubbers on the valves pop off which jams them up.
Water vlv could be bad it is on the drivers side of the engine compatment looks like 2 cyl with hoses on either side
SOURCE: Climate Control System Problem
The noise is most likely coming from a sticky temperature control blend door, ( they warp from heat, not an un-common issue) it is moved with a electric actuator. This is very expensive to fix, requires removal of the dash to repair, if the system works ok then if it was me I would "live with it".
SOURCE: BMW 328i convertable climate control intermittant problem
the climate control unit has failed,which is that unit under radio if u pull it out and disconnect wiring at the back the blower fan will come on and stay on that unit is the control unit and if faulty,
SOURCE: bmw heating/climate not working
i have a 1996 323i coupe,blowers work fine but very little warm air comes out
SOURCE: radio has no sound or intermittent sound.bmw e39 5 series '00.
You might want to suspect a stereo amplifier. Does your car have DSP? In any case, look in the trunk on the left hand side. You will find your radio amplifier back there. It will have about a 3in connector with a bunch of twisted pair wiring. Remove the connector and make sure there is no water contamination. All sound processing takes place in the amp.
SOURCE: starting problem on bmw 530d 1999 e39
ihad same problem.drove me crazy till ifitted a new electric fuel pump half waydown chassis n/s under pass seat area..euro car parts stock them.
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