Hi, I am a new member,and a first time BMW owner. I have a 2ltr 1series and the idling speed (tick over) seems too fast. When I slow down at lights or a junction, the car seems to surge forward and I have to change down or dip the clutch and brake. I know that a diesel engine will propel the car slowly forwards without touching the accelerator but my car just keeps going.What is the correct idling speed please? The rev counter shows 800 rpm approx. Please help.