E39 Electric Fan Wiring
E39 bmw 540i electric fan conversion cooling overhaul part 3 of 5 duration.
E39 electric fan wiring. An electric fan mounted on the front of the radiator. Bmw models that do have an engine driven fan will also have an electric fan mounted in front of the radiator known as the auxiliary cooling fan. E39 auxiliary fan wiring diagram wiring diagram is a simplified up to standard pictorial representation of an electrical circuit. For the bmw e39 1996 1997 1998 1999 2000 2001 2002 2003 model year.
It can happen randomly at any mileage and the only warning is to continually test your fan clutch by attempting to stop it from spinning at idle. American autowire 884 911 views. 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. Building a 3 5kwh diy solar generator for 650 start to finish duration.
It shows the components of the circuit as simplified shapes and the aptitude and signal friends together with the devices. Wiring up electric cooling fans michael harding june 2017. The fan final stage is mounted to the fan and is controlled by the dme engine control module. It draws air past the radiator cooling fins which in turn cools the engine coolant.
Bmw also applied this to many of the 6 cylinder models through the 2000s and of course all mini models. Bmw ac blows hot air how to fix car a c that blows hot air duration. 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. How to wire an electric fan with an ac trinary switch duration.
This was a mediocre way of doing things primarily because the current required to spin the fan was drawn through the switch itself. Fuse box in passenger compartment bmw e39. This would be common to most of the bmw 4 cylinders for the 90s model years. Diameter reversible 2 550 cfm.
Bmw electrical systems wiring diagram models covered.