Starting climate comfort retention is only possible via direct start.
The function utilises several systems in different cases:
- Residual heat from the engine, in a cold climate, heats the passenger compartment to comfort temperature.
- When it is warm, the ventilation cools the passenger compartment by blowing in air from outside the car.
Climate comfort retention is switched off when the car is locked from the outside to avoid using residual heat unnecessarily. Use of the function is intended to maintain climate comfort when driver or passengers remain inside the car.
There is a limit to how long climate comfort can be maintained in a cold climate, which depends on the amount of residual heat available.