2002, 530i & 3.0Si
Start and run engine until normal operating temperature is reached. Connect test lamp to disconnected plug on solenoid valve. Test lamp should light when engine speed is over 3000 RPM. If not, speed switch is defective.
Start and run engine until normal operating temperature is reached. Connect test lamp to disconnected plug on solenoid valve. Test lamp should light when engine speed is over 3000 RPM. If not, speed switch is defective.