BMW X5: Transfer Case, General

 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.

 Fuel Supply System - System Functions

> E65, E66 The fuel supply system on the BMW 7-Series is requirement-orientated and thus depends on consumption. The DME calculates the amount of fuel required on the basis of various operating variables. In turn, the engine's current fuel requirement is calculated from this value. The DME r