Guys, I have a strange issue with the A/C blower, when starting the car, the AC works fine and keeps working for around 20 minutes, then the air stops (you can still feel the cold air) . When I press the “MAX” button, everything returns back to normal and the cold air comes back. The rear blower is working great.

I read many posts related to the FSR and therefore changed it (based on the instructions found on this site) but the problem still there. I also checked the fuse but the problem is still there. The mechanics said that the cause is the A/C blower motor (it gets heated) and it should be changed, however, I don’t think this is accurate because the blower starts working upon pressing the “MAX” button. He quoted me around $ 500 labor and around $600 for the blower.


Do you think the issue is with the blower or there is another component that causes this. I appreciate any feedback/ advice you can provide.
My car is X5 2002 4.4i