E36 Electric Fan Wiring Diagram

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.

E36 electric fan wiring diagram.

But keep in mind because you have no fan resistor there wont really be a low speed as far as the fan is concerned. Applicable to all accessories. Most stand alone adjustable thermostats i e. Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note.

For peace of mind and for use on dyno and track days i installed a manual fan switch inside the. This was a mediocre way of doing things primarily because the current required to spin the fan was drawn through the switch itself. The fan is controlled by a simple on off switch placed in the cockpit. Diy e36 electric cooling fan and wiring.

I used the mishimoto electric fan controller probe kit along with a spal fan. This is the finished product. Hayden flex a lite or perma cool brands can provide a 12 volt output when activated. Another method in order to get the stock fan wirings low speed to work is to wire red and black together.

E36 electric fan wiring on off switch. This is a guide to wiring an aftermarket accessory. 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. Assuming youre using an aftermarket fan you want to wire the 12 of the electric fan to red and the ground to brown.

In this particular case it is for an electric fan which is more than likely the most common use. Bmw electrical systems wiring diagram models covered. 3 series e30 316 83 to 88 316i 88 to 91 318i 83 to 91 320i 87 to 91 325i 87 to 91 also touring and convertible versions of these models 5 series e28 518 81 to 85 518i 85 to 88 525i 81 to 88 528i 81 to 88 535i 85 to 88 m535i 85 to 88 5 series e34 518i 90 to 91 520i 88 to 91 525i 88.