I just purchased an old E12 530i and I have a few concerns to address before it's road worthy. Firstly the heater blower motor doesn't work. I have a replacement but I don't know where the silly thing is. I took the console apart, thinking that the blower motor in there was the heater, but low and behold that blower is for the air conditioning. :confused:

Soooo.... Where is the heater motor and how do I get it out?

Also when the car is cold, it starts easily but idles low, as it warms up the idle goes up to around 1.5 to 2k, where it stays. How do I adjust the idle on this car? I have no experience with the Bosch Fuel Injection having come from a carburated RX-7.

Aside from these two concerns and a somewhat 'holy' floor, this Bimmer drives quite well and I am quite impressed with how well it has held up.

Any and all help is appreciated.

I'm guessing the E12 is extremely similar to my Bavaria (E3). Open the hood, and you'll see a plate about 2 feet wide covering the area in front of the windshield. Openings on either side of the plate are fed by the vents in the hood. Remove the screws holding that plate, and there's your blower. It comes out from this side (it's mounted on top of the heater box -- and of course the car is built around the heater box :D ). You can check the voltage to the blower versus switch position, but if it doesn't work at all, then you probably need a new one.

Thanks a bunch, found it straightaway and had the sucker out in 10 minutes. Now if I could only get this fast idle problem squared away, I'd be a happy man. :D

For all your E12 questions, go to www.firstfives.org
They are an extremely knowledgeable and helpful bunch of people.
Your auxilliary air valve is signalled by the temp of the coolant in the hose below the intake and could be sticking open. You can also adjust idle at the screw on the throttle body. That is a pretty basic version of the L-jetronic (pre-o2 sensor) and you'll get a handle on it pretty easily. :)