2003 bmw 325i, the air is working, but two of the vents are blowing hot air. the other two are fine. what could it be?

Asked by mikb Aug 10, 2012 at 07:00 AM about the 2003 BMW 3 Series 325i Sedan RWD

Question type: Maintenance & Repair

we took it to a local shop and the free-on level was fine.

3 Answers

mikb answered 12 years ago

what are blend doors? sorry i have no knowledge when it comes to cars.

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Robert answered 12 years ago

Tom is correct check you stratification wheel and make sure it is on the blue dots. If thats ok and your a/c system is full of freon then you should check you water valve. This vehicle does not use a mixer flap in the air box to control the temperature it uses a water valve on the driver side near the air box, If that valve is stuck open then you will have heat coming in the passenger compartment even when the a/c is on. Hope this helps.

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binhquang1 answered 9 years ago

I have the same problem. The center vents are putting hot air after a while? Is there a temp sensor/thermal stat some where that may not working properly? HELP!!!!

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