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Home >> Mercedes Benz >> 2003 >> CLK430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (A/C-Heater Systems - Automatic) >> Operation >> A/C Push-Button Control Unit
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A/C Push-Button Control Unit

WARNING: This page is about a different car, the 1999 Mercedes-Benz CLK430, 1999 Mercedes-Benz CLK320, and 1998 Mercedes-Benz CLK320. However, it is still accessible from the selected car via links, so may be relevant.

Sensor signals and temperature settings are processed in A/C push-button control unit (A/C-heater control panel). The unit controls coolant flow through heater valve, mode change (heating to cooling) and position of fresh/recirculated air door. The control unit signals blower control unit of required or selected blower motor speed.