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.
Clicking Noise From Behind Center of Dash on Mercedes-Benz C230
Average mileage: 87,293 (40,000–145,000)
23 people reported this problem
2002 Mercedes-Benz C230 97,600 mi, Visitor
Clicks repeatedly when first started, last about 3 min every time.
2004 Mercedes-Benz C230 125,000 mi, Visitor
Clicking noise from under center of dash
Clicking noise from behind dash
CLickin noise from dash for about 8 repatative clicks the it guits. AC diverter control does not work.
The clikcing is more like the sound of the keys but I know it is coming from the dashboard area.
2002 Mercedes-Benz C230 145,000 mi, Visitor
clicking in dash
Stepper motor making noise. Because the front panel has to be removed to fix it, repairs are costly.