3234464 - E5020 ENGINE COOLING - Description (Heater)

Description

The engine radiator cooling system consists of a fan which operates at two different speeds.

• the first speed is activated at a first coolant temperature level;
• the second speed cuts in at a higher temperature threshold.

The fan is operated by two specific relays located in the engine compartment near the battery.The supply line for the fan is protected by a special maxifuse, whilst the circuit for energizing the relays is protected by the fuse which protects numerous other services controlled by the ignition.The fan therefore only comes on when the ignition is switched ON.