The combustion engine is automatically started when driving under conditions such as the following:
- When accelerating heavily or on uphill grades.
- By pressing the accelerator pedal beyond the resistance point at the full throttle position, kickdown.
- The high-voltage battery's state of charge is too low.
- The high-voltage battery's temperature is too high or too low.
- Selector lever position M or S is engaged.
- During manual gear-shifting using the shift paddles.
- Depending on vehicle equipment: When using anticipatory hybrid drive with active route guidance, e.g., out of town.
- For system-related demand from hybrid components.
Depending on the driving situation, the combustion engine is shut off if the requirements for electric drive are met.
- The high-voltage battery's state of charge is sufficiently high.
- The high-voltage battery's temperature is not too low and too high.
- Selector lever position D or R engaged.
- The accelerator pedal is not pressed with too much force.
- The possible maximum speed for electric drive is not exceeded.
