E46 Cooling Fan Relay Location

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.

E46 cooling fan relay location.

1 k6300 sky blue relay dme 2 k6325 ultra sky blue relay reversing light auto only or k6318 smg pump m3 w smg only salmon 3 k6326 unloader relay salmon or white green or k6327 fuel injector relay. Just showing the location of the relay box under the hood on the e46. The fan is mounted between the radiator and the engine and is the main engine cooling fan. You want all of the parameters to be properly met so that everything.

It is a rectangular box with wires going to a harness and two wires going to the fan motor. 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. Almost all modern vehicles rely upon electric cooling fans to pull air through the vehicle radiator to keep the engine cool. The aux fan relay is located on the fan shroud on e46 vehicles.

Relay r1 main relay relay r2 cooling fan relay relay r3 catalytic converter relay r4 vacuum pump relay relay r5 receiver transmitter relay r6 direction indicator relay r7 cut off relay relay r8 terminal 15 relay. There is no engine driven mechanical fan.