See also:

Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline to control engine deposits. Detergent gasoline is effective in keeping injectors and intake valves clean. Consistent use of deposit control gasol ...

Activating/deactivating
The control panel is activated by pressing MODE when the audio system is switched on. It is switched off automatically when the audio system is switched off or by a long press on MODE. ...

Lighting panel
Overview, light switches 1 - Thumb wheel for adjusting display and instrument lighting 2 - Rear fog light 3 - Headlights/parking lights Instrument lighting Illumination of the display and instr ...