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.