Noise from the heater matrix area?

[Supervinnie40]

Originally Posted by first-things-first

Not had this on mine. It will get cooler as the desired temperature is achieved, but not making lots of noises as flaps keep adjusting.

Have you tried a diagnostic on the ATC panel?

https://www.the75andztclub.co.uk/for...d.php?t=162975

Unless you do as the instructions say, you will most likely get errors 21 and 22.

Interesting :O Something to try tomorrow.

Originally Posted by COLVERT

It could be a problem with the circuit boards that control the internal heater flaps.

Or maybe the signal from the temperature sensor is not continuous due to a poor connection or failing sensor.

It does sound like flaps moving around. Would the flaps keep moving for some reason at a certain point? They only do it after roughly 20 orso minutes (a good 15 minutes after the engine is warm enough to start heating the interior)