Mercedes-Benz 0255453332 Cooling Fan Control Module

The 0255453332 cooling fan control module is an electronic control unit designed to regulate the auxiliary engine cooling fan operation on Mercedes-Benz passenger vehicles. It processes coolant temperature sensor signals and activates the fan motor at variable speeds to maintain optimal engine operating temperature. The module features an oval connector interface and solid-state power output stage capable of 40 A peak current. It operates across a temperature range of -40 to 100 °C. The unit mounts in the engine compartment and interfaces with the vehicle CAN bus for diagnostic capability. Direct replacement for OEM numbers 0255453332, A0255453332, and 0185459932.