Article by: RAkhmedov Applies to: All models with the M30 straight six engine. Lubrication is critical for any engine. Good condition of the oil pump is essential for provision of adequate lubrication. Negligence of timely oil changes affects oil pump as well as the rest of the system resulting in […]

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: Igor Kostenuk Article applies to: all BMW models with the S38 Motorsport engine. I decided to pull this job on my M5 a couple days ago and document it as much as I could. This job requires a couple of special tools which I will list and other […]