The concept The system helps to conserve fuel.
To do this, under certain conditions the engine is automatically decoupled from the transmission when selector lever position D is set. The vehicle continues traveling with the engine idling to reduce fuel consumption. Selector lever position D remains engaged.
This driving condition is referred to as coasting.
As soon as you step on the brake or accelerator pedal, the engine is automatically coupled again.
Hints Coasting is a component of the ECO PRO, driving mode.
Coasting is automatically activated when ECO PRO mode is called via the Driving Dynamics Control.
The function is available in a certain speed range.
A proactively driving style helps the driver to use the function as often as possible and supports the fuel-conserving effect of coasting.
Safety mode The function is not available under one of the following conditions.
Functional requirements In ECO PRO mode, this function is available in a speed range from approximately 30 mph, approx.
50 km/h to 100 mph, approx. 160 km/h, if the following conditions are met:
The driving status Coast can be influenced with the shift paddles.
BMW X3 Service & Repair Manual > Electrical: Preheating relay
REPLACING PREHEATING CONTROL UNIT (N47D20 O1)
Necessary preliminary tasks:
Switch off ignition.
Remove INTAKE SILENCER HOUSING .
Release positive battery cable (1) from clamp.
Release expanding rivets (2).
Remove rear acoustic cover (3).
Detach connector (1) from preheating contro ...