Bmw E46 Radiator Fan Relay

Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

Bmw e46 radiator fan relay.

A broken wire on the air con cooling fan control unit stopping the air con system from working but allowing the. When the correct parameters are met a temperature switch or. There is no engine driven mechanical fan. Radiator and coolant overflow tank.

The cooling fan relay is the relay that controls the engine s cooling fans. Bmw e46 cooling system components include. Almost all modern vehicles rely upon electric cooling fans to pull air through the vehicle radiator to keep the engine cool. Radiator and coolant overflow tank.

2003 bmw e46 air con cooling fan fault fixed. The fan is mounted between the radiator and the engine and is the main engine cooling fan. For the bmw 3 e46 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 model year. You want all of the parameters to be properly met so that everything.

These cooling fans rely upon electric motor and they typically have a moderate to high slow draw which means that they are commonly controlled with a relay that relay controls the fans for the engine. Electric cooling fan attached to rear of radiator the cooling fan is controlled by the engine control module ecm via an output final stage. Belt driven coolant pump bolted to the front of the engine block. Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays.

On all bmw models up through the late 90s the auxiliary or main fan is controlled by one or two thermostatic switches that are mounted into the radiator side or bottom tanks.