Clicking Noise From Behind Center of Dash on Mercedes-Benz CLK55 AMG

Problem Description and Possible Solution

A repetitive clicking noise from behind the center area of the dash panel is usually caused by a broken stepper motor actuating arm. The actuating arm controls the direction of air flow in the climate control system. Disassembly of the center console will be required to access and change the broken arm with the updated, reinforced part.

Problem Data
RepairPal Verified
Average mileage: 98,428 (85,000–120,000)
4 model years affected: 2003, 2004, 2005, 2006
12 people reported this problem
Viewing 1 - 5 of 5 problem details
have what you described but noise has been much less after a month of louder noise. what would it cost to repair/replace the cause?
At start up thumping sound coming from middle area of dashboard (cupholder area) for about a minute
This clicking just started for me as well. I found that if I put the vent position in a certain place it will reduce the amount of time the clicking occurs. Will be buying the part and getting this fixed next week at the dealer.
clicking in center dash
same issue as described above, I'm getting clicking noises from two areas. The front center dash and the driveside dash. I'm also not getting air on the driverside defrost