See also:

Temporary shut-off of the air conditioning
The air conditioning is momentarily disengaged during full-throttle acceleration or when driving uphill with a trailer. This may result in a temporary increase in cabin temperature. ...

W – Winter/Wet driving mode –enhanced vehicle traction
Press the W button at the base of the gear selector to engage/disengage this driving mode (see illustration). The W symbol will appear in the display (see page 58) when the function is activated ...

Opening/closing the fuel cap
Fuel vapor expands in hot weather. Open the filler cap slowly. After refueling, close the fuel filler cap by turning it clockwise until it clicks into place. CAUTION Do not refuel with the e ...