This may be a valve that is stuck open.
2008 bmw x5 heater control valve location.
Its is a common failure part and will cause similar problems.
Has two solenoids on top of it and its inline to the heater hoses coming out of dash.
Bmw 328i 328xi 2008 hvac heater control valve by four seasons.
Coolant is full no external leaks that i can see.
Does someone have the manual that covers testing the heater control valve and or the aux water pump.
My heater control valve is bad.
My no heat problem happens both at idle and at speed on the highway so not sure if the aux pump is at fault or not.
Bmw e53 x5 models utilize a heater control valve that controls the flow of hot coolant to the heater core.
The heater for the positive crankcase ventilation pcv valve may short circuit.
Its located between drivers side valve cover and fender steering shaft.
This unit can fail and prevent or allow coolant flow depending on if the valve is stuck open or closed.
By default if valve is replace you should always check freon level.
2 replace water valve 64116910544 on your 08 bmw.
My 2005 745li has no heat and its cold here.
This is the location of the water valve that feeds the heater core on a bmw x5 e53.
Products are engineered and tested to provide years of trouble free operation.
Backed by over 50 years of mobile a c experience fix it once and fix it right with four.
I just had a new radiator installed on my 2008 e70 4 8i which required all new coolant.
2008 x5 4 8i e70 sport.
If i clamp the hoses before replacing the hcv do i just need to top off the coolant or do i need to vent bleed the system.
You may also have a situation where the vehicle has heat all the time.
Next step after replacing heater control valve water valve.