Mercedes Climate Control Rotary Dial Repair Service ECU which affect the control of

which affect the control of fans

ATE Unit Numbers:

OEM Part numbers include

AB39-14b321-AF

Disassemble and inspect the internal lighting circuit

Mercedes Climate Control Rotary Dial Repair Service ECU which affect the control ofMercedes Climate Control Rotary Dial Repair ServiceLeft or Right Temperature Adjustment Fault This is a repair service for the rotary dial switches on Mercedes Benz climate control units, where either the left or right temperature control fails to respond correctly. Common Symptoms: Temperature stuck on hot or cold for one side Rotary dial unresponsive or intermittent Uneven heating or cooling between driver and passenger zones No change in