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Thanks for the reply.
I have seen numerous posts with exact symptoms I have in different fxx cars.
I have an f22 m235i. UK car so driver side on the right. The heating system works perfectly for passenger side, hot blows hot, cold blows ice cold and everything perfect.
However on the right side of the car, the car will blow cold air conditioned air perfectly but the hottest it will blow is barely lukewarm.
I have read it could be a blocked heater core, which I am unsure of as the passenger side gets perfectly hot air and I presume the both sides pull air from the same core, but I'm a bit grey here.
Other option is a blender door/actuator not doing it's thing. However when I change the right side temp and have some trim removed I can see the actuator moving. Also the temp does change from ice cold, to mild air.
Maybe there's another blend door somewhere, or the actuator is moving but the door mech inside isn't moving correctly.
Any help appreciated 👍
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