E36 Electric Fan Wiring Diagram

Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note.

E36 electric fan wiring diagram.

Diy e36 electric cooling fan and wiring. This was a mediocre way of doing things primarily because the current required to spin the fan was drawn through the switch itself. Bmw 3 e30 3 e46 528e e28 5 e39 733i e23 z3 e36 e37 bmw motorcycles wiring diagrams. Another method in order to get the stock fan wirings low speed to work is to wire red and black together.

Assuming youre using an aftermarket fan you want to wire the 12 of the electric fan to red and the ground to brown. Hayden flex a lite or perma cool brands can provide a 12 volt output when activated. Most stand alone adjustable thermostats i e. But keep in mind because you have no fan resistor there wont really be a low speed as far as the fan is concerned.

Bmw electrical systems wiring diagram models covered. I used the mishimoto electric fan controller probe kit along with a spal fan. A couple of decades ago it was popular to simply add a switch under the dash to control an electric cooling fan often referred to as an auxiliary fan. Positive comes from the relay for the ground i just connected a wire to the aircon bracket both the fan trigger and positive wire run in a cable sleave.

Instruction for everything is included. In this particular case it is for an electric fan which is more than likely the most common use. The fan is controlled by a simple on off switch placed in the cockpit. This is the finished product.

For peace of mind and for use on dyno and track days i installed a manual fan switch inside the. Applicable to all accessories. This is a guide to wiring an aftermarket accessory.