BMW X5: Fuel Supply System

 Workshop Hints On Cylinder Leakage Testing

When performing cylinder leakage tests, the following tips might be helpful: Remove all spark plugs to allow easier rotation of the engine. (If this test is done after a compression test, the plugs should already be out). Perform the leakage test on all cylinders, not just the problem cylinder.

 Engine-Off / Coasting

Principle Under certain conditions the engine is automatically decoupled from the transmission in the D selector lever position. The vehicle continues traveling with the engine idling to reduce consumption. Selector lever position D remains engaged. This driving condition is referred to as coastin