Mercedes-Benz GLC : Operating the climate control system / Switching the residual heat on or off

Switching air-recirculation mode on/off

Press the button. The interior air will be recirculated. Air-recirculation mode automatically switches to fresh air mode after some time. If air-recirculation mode is switched on, the windows may fog up more quickly...

Activating/deactivating ionization

Ionization improves the quality of the vehicle's interior air. Ionization of the interior air is odorless. Call up the air conditioning menu. Select Air Quality...

Other information:

Mercedes-Benz GLC 2016-2025 Owners Manual: Notes on brake fluid

Observe the notes on operating fluids. WARNING Risk of an accident due to vapor pockets forming in the brake system The brake fluid constantly absorbs moisture from the air. This lowers the boiling point of the brake fluid. If the boiling point is too low, vapor pockets may form in the brake system when the brakes are applied hard...

Mercedes-Benz GLC 2016-2025 Owners Manual: Operational data in the vehicle

This is data regarding the operation of the vehicle, which have been processed by control units. This includes the following data, for example: Vehicle status information such as the speed, longitudinal acceleration, lateral acceleration, number of wheel revolutions or the fastened seat belts display Ambient conditions, such as temperature, rain sensor or distance sensor Generally, the use of these data is temporary; they will not be stored beyond the period of operation and will only be processed within the vehicle itself...