Drive select modifies the following systems and characteristics depending on the mode selected:
Engine and gearbox
The response of the engine and gearbox to accelerator pedal movements will be more spontaneous or balanced, depending on which mode you select. In the performance-oriented dynamic mode, the automatic gearbox changes gear at higher engine speeds. By contrast, the gearbox selects the next gear at lower engine speeds in efficiency mode. This helps to reduce fuel consumption.
Air suspension*
The air suspension* is an electronically controlled pneumatic spring/shock absorber system. The set-up is adjusted according to the selected mode, steering movements, braking and acceleration input by the driver, road surface quality, road speed and vehicle loading. The vehicle s ground clearance depends on which mode is selected and how fast you are travelling.
The ground clearance is much higher when the vehicle is in allroad mode. The ground clearance is reduced in stages between approx. 80 km/h and 120 km/h and is automatically increased again at lower speeds. The ground clearance is lowest in dynamic mode.
Steering
The degree of power assistance can be varied. The light, indirect steering response in comfort mode is particularly suitable on long motorway trips, for instance. The steering has a tighter, more direct feel in dynamic mode.
All-wheel steering*
The all-wheel steering enhances the ride comfort by allowing the wheels on the rear axle to be steered. At low speeds, the turning circle is reduced by steering the rear wheels in the opposite direction to the front wheels. At high speeds, the vehicle handling and stability are improved by steering the rear wheels in the same direction as the front wheels. All-wheel steering is used while manoeuvring with the park assist* and trailer assist*.
Cornering light*
The cornering light adjusts the main beams in corners according to the vehicle s speed. The swivel action and light distribution are also adjusted according to the operating mode.
Air conditioner
The air conditioner runs in a particularly economical mode when the efficiency setting is selected.
Cruise control system*
The acceleration response is particularly economical in efficiency mode.
Adaptive cruise control (ACC)*
The acceleration mode can be varied from comfort to sport by changing the setting in drive select. The setting also determines whether the response of the adaptive cruise control to the driving style of the driver in front is more balanced or spontaneous. The efficiency mode chooses a set-up for maximum economy.
Engine sound*
The sound of the engine is matched to the selected mode and ranges from subdued to dynamic.
CAUTION
Vehicles with air suspension*:
- When you park, make sure there is sufficient clearance both under the car and above the roof, because the height of the parked vehicle can change due to variations in temperature and loading or changes to the ride settings.
- When transporting the vehicle by lorry, train, boat, plane, etc., it must only be strapped down on the tyres. It is not permissible to secure the vehicle by its axles, struts or towline anchorages, since the pressure in the air suspension can change during transport. Under certain circumstances there is a risk that the vehicle may not be properly secured.
Note
- On some models the vehicle s maximum speed can only be obtained in the auto and dynamic modes.
- Selector lever position S is automatically selected when dynamic mode is activated. E is selected in efficiency mode.
- Please note that the efficiency mode is not available in towing mode.