EV mode can only be selected if the following conditions are met:
- The high voltage battery must be sufficiently charged.
- The high-voltage battery must be at an appropriate temperature (not below approx. -10 °C).
- The Audi A3 must not be travelling faster than approx. 130 km/h.
- The kick-down feature must not be used.
- The selector lever must not be in the S position.
If one or more conditions are not met, EV mode will be deactivated. The combustion engine will start automatically. An indicator lamp 
will appear in the instrument cluster to indicate this status. The LED in the 
button and the indicator lamp 
will go out.
will appear in the instrument cluster to indicate this status. The LED in the button and the indicator lamp will go out.Electric driving will not be resumed automatically. Activate the EV mode again ►Link.
Note
For technical reasons, for instance if there is a build-up of condensation in the engine, the combustion engine may need to run for a longer period. During this phase it is not possible to drive on electric power alone.