Engine Start

Engine Start

The combustion engine is started automatically in the following cases:
- vehicle started using the key and battery temperatures lower than 50° F. (10° C.)
- cabin air conditioning system issues a heating request
- if the driver setpoint torque is high (accelerator pedal) or the load is increasing (e.g. on inclines) and the E-machine alone cannot provide sufficient power
- if the charge state of the high-voltage battery is low
- if the vehicle speed increases
- - > 30 mph (50 km/h)
- - > 45 mph (60 km/h) if the E-Power button is active
- when the driver's seat belt is released
- when the driver's door is opened
- when the hood is opened
- when driving over steep terrain and if the Tiptronic S is about to perform a downshift that causes the engine speed to exceed the limit of 2,600 rpm
- when switching back to a load phase from coasting mode or if recuperation is initiated and fulfils the above conditions