Popping from ac on start up c203 coupe

[ABravo]

When starting up the car there is a popping sound from the air con ( I think) it stops after a. Few mins. It seams to stop quicker if I mess about with ac controls. This only occurs when the car has been left awhile. Ie over night. When restarting when warm no problem. Any ideas

 

[brucemillar]

Flap motors knackered. Dash out expensive fix £900 in my W203 I live with the noise.

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[will lam]

Same here the flaps are buggered, mines a w209. Worse thing now is you never able to set the ventilations to the right area