Thanks AlphieI think this is something to do with the mechanism that controls the flaps inside the car. It happens on mine intermittently. There is a thread on it somewhere but I have given up trying to use the search here,
The VCDS test is HVAC Controller Test. Only available with licensed version (inc vcds-lite).You can try the RSI exercise of sitting in the car with the engine running and constantly selecting the temperature LO to HI and back again SEVERAL times to hopefully free of the stuck actuator ( hopefully ). If you drop the glovebox and look up into the gap on the left of the upper center dash you should see the temp actuator moving as you change the temperature. Silicone grease on the exposed gear teeth may help but it is usually the inner end where the motor is that is the problem.
VCDS will give the normal errors due to the climate, but there is a function in VCDS that moves the flaps through their range.
HiYou can try the RSI exercise of sitting in the car with the engine running and constantly selecting the temperature LO to HI and back again SEVERAL times to hopefully free of the stuck actuator ( hopefully ). If you drop the glovebox and look up into the gap on the left of the upper center dash you should see the temp actuator moving as you change the temperature. Silicone grease on the exposed gear teeth may help but it is usually the inner end where the motor is that is the problem.
VCDS will give the normal errors due to the climate, but there is a function in VCDS that moves the flaps through their range.