Energy regeneration is shown in the instrument cluster display or on the Infotainment System screen. The combustion engine may be switched off automatically in this situation. The instrument cluster powermeter registers below zero.
When the high voltage battery is fully charged, there is no brake energy recuperation, and therefore no engine braking. Recuperation and engine braking are also automatically reduced if the vehicle detects that the road conditions do not permit sufficient contact between the wheels and the road surface.
Start-Stop mode
The combustion engine is operated only as needed. When the vehicle is stopped the combustion engine is normally off. The vehicle electrical systems are supplied with power from the high-voltage battery. The instrument cluster powermeter shows zero.
This dependant on vehicle conditions feature of the hybrid drive system is normal and is designed to save fuel. The power steering, braking assistance, and air conditioning systems remain active. In certain situations it may be necessary for the system to start the combustion engine even when the vehicle is not moving. With prolonged driving in traffic jams, the combustion engine will be switched on and off to charge the high-voltage battery for the following start-stop phase.
Sailing
If the accelerator is not depressed and the lever is in position D, the combustion engine is switched off, even at higher speeds. The vehicle then decelerates slower than conventional vehicles. This feature can be used to help reduce fuel consumption when you keep traffic conditions in mind and can antici-pate the vehicle's power requirements. The instrument cluster powermeter shows zero.
WARNING
Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads. This can cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
x Always adjust your driving style in accordance with the flow of traffic.
x Only use kickdown or fast acceleration if permitted by visibility, weather, road and traffic conditions, and if other road users are not put at risk due to the acceleration and the driving style.
High-voltage battery
Fig. 125 Location of the high-voltage battery: Under the luggage compartment floor.
