This basic setting is used to shut off the signal from the longitudinal acceleration sensor. This sensor is only fitted to four-wheel-drive cars with Haldex clutch. When the longitudinal acceleration sensor is shut off, the four-wheel-drive is disengaged and the vehicle behaves like a front-wheel-drive vehicle.
Note:
When the ignition is switched off and on again, the longitudinal acceleration sensor is activated and four-wheel drive is engaged.
If the engine stops and is restarted, four-wheel drive is engaged again.
Method:
Start the engine.
Choose the basic setting: Shutoff of longitudinal acceleration sensor.
A dialog box confirms that the operation was successful/unsuccessful.
Switch off the ignition.
Switch on the ignition to re-activate the four-wheel drive.