My fan has stopped. It did try to power up on starting car a few times, but now nothing.
I checked the blue wire to brown wire feed wires, as from previous posting, nothing 0.1v. Altering the fan speed 1 to 9 settings, gave no change in voltage. Brown feed wire to reg. is a good earth.
The voltage two wires to the motor is 12v both red & brown wires, so no controlled earth from the speed regulator which is £128+vat p.n.90512510. The fan seems free to move, goes to full speed when you bypass and add an earth to brown wire to motor.
I now think the electronic climate control ECC unit is faulty £600+vat? I have remove PCB unit from back of push buttons, can’t see any burning or dry solder joints. Control feeds from plug 8 & 18 ECC go to speed regulator & test OK. So do the red & brown plug 1 & 2 ECC measure 12v & earth.
I have had a problem for a number of years, with the car going cold after a hour drive and having to turn up the heat up a few degree, but not worth doing anything about it.
Has anyone replaced ECC unit or had one repaired. The car is not worth spending £600 even though it is a 1995 Elite 2.5TD BMW engine. My efforts at the breakers has not come up with anything yet. Can anyone help put the old girl back on the road.