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No heat 2001 530i

929 views 0 replies 1 participant last post by  Alontowing 
#1 ·
I have 2001 530i, there is no heat, I changed both water pumps the heating valve bleed the system and nothing happen, the engine temp is normal and sometimes I'll get heat if the car park running for long time, when I'm start driving the heat slowly goes away and cold air blowing, seams like water not circulating in heater core but I can't get why and can't understand how hot air blow when the engine idle for 10-20 min, thanks
 
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