53– graphics channel 2 – Climate system electrical outputs are identified by illuminated segments of the “88.8” display. 54 – control characteristics Audi A4 B6
OriginallyPosted by A4Audi4Fun. Interior heat exchanger ould be blocked or HVAC flap motors are not working properly. Flap motor operation can be tested using VCDS tool; heat exchnage might need a reverse coolant flush. thanks for the reply, after driving the car more I have some more notes, some may not be related but will add them incase.
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