Part 1: Article by: RAkhmedov Applies to: All models with the M20/M30 straight six engine. The M30 engine uses an AFM unit to provide information to the computer about the amount of air that enters the intake. The unit uses a flap reinforced by a spring that continually presses the […]

Idle performance and EVAP Purge Valve Article by: RAkhmedov Applies to: All models with the M30 straight six engine. Erratic idle performance of the engine is often attributed to quality of ignition components, Idle Control Valve, AFM sensor, Throttle Position Sensor, etc. A part of fuel injection system that is often ignored is Evaporative Purge […]

Article by: Jon Evans Applies to all M30 engines. Oil leaking from the front of your M30 engine is a fairly common complaint, as I found when I posted an enquiry to The UK E32 Register Forum. I was prepared to book it in to have the timing cover gasket […]

Article by: Sean Article applies to: all BMW models with the M70 V12 engine. Problem: there are 2 known problems areas when you are suffering from an unusual high oil consumption. Problem one is worn valve stem seals, and problem two is faulty VCV valves. Both issues are causing the […]

Article by: Sean Article applies to: all BMW models with the M70 V12 engine. Problem : those Germans can’t build decent water pumps and if you see them, you can tell Sean750 said so. Throughout the years, I replaced dozens of pumps on lots of German cars, sometimes a couple […]