M42 Blower Fan issues

[Jim Lahey]

Hi all, first post here. Just recently purchased a fairly clean e30 318is, slowly sorting through a few issues before I get it on the road.

Air con/heating fans won't come on at all, when I click the air con button on I can hear the compressor. I'm also sure the relays are okay as the power mirrors are perfectly operational, fuse looks okay...replaced the blower resistor with a spare that came with the car, still doesn't work.

Either I'll try a brand new resistor, or is it sounding likely the entire blower needs to be replaced ? I thought even if it were faulty, it would still show some form of life.

[vpilarry]

Typically when the resistor is bad the fan will only run in high (4). If its not running at all you probably have another issue; wiring, fuse (#20), fan motor, etc. See page 6413-0 here; http://wedophones.com/Manuals/BMW/19...g%20Manual.pdf