I have a bmw 635 csi 1985. The engine is erratic and does not want to pull after 2500 rpm. I think it may be the air flow meter or idle air contol. The check light is flashing on the dash.
I want to try and read the fault codes but i dont know how. I was wondering if anyone knows how to read the fault codes on the car, as it could indicate why it doesn't run properly.
Any thoughts would be much appreciated!