See also:

Ice and snow
Always keep the air intake grille at the base of the windshield free of snow. ...

Generator warning light
If the light comes on while the engine is running, have the charging system checked. ...

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 ...