This is a thread in switch for E30/36 radiators to allow you to use the factory wiring/AC button to turn on your thermo fan. This is perfect when paired with an 80c thermostat to keep your motor cool.
Uses 2 spade connections instead of the commonly broken BMW 3 pin connecter - all you have to do is join the low and high speed wires together on one terminal and the ground wire onto the other and connect your thermo fan to the factory A/C fan wiring. Then fan will then turn on at 87c or when you press the A/C snowflake button. This can also be used to trigger the ground for an aftermarket fan relay.
Uses 2 spade connections instead of the commonly broken BMW 3 pin connecter - all you have to do is join the low and high speed wires together on one terminal and the ground wire onto the other and connect your thermo fan to the factory A/C fan wiring. Then fan will then turn on at 87c or when you press the A/C snowflake button. This can also be used to trigger the ground for an aftermarket fan relay.
