BMW X5: Engine And Gearbox Suspension (6-Cyl.)

 HDC Hill Descent Control

Principle HDC Hill Descent Control is a downhill control feature that controls the vehicle speed on steep downhill grades, for instance when driving on unpaved roads. General information When the system is active, the vehicle moves at the speed set by the driver, without the driver having to depress

 Engine Adaptation Values

Engine adaptation values can be broken down into two categories: Additive Mixture Adaptation - additive adaptation refers to "long term fuel trim". These adaptation are made by the ECM (DME) at idle during "closed loop" fuel control. These values are measured in milliseconds and are expresse