Turn the knurled ring to 
.
The warning light 
on the instrument
cluster will come on.
See also:
Button volume (Keys Volume)
The volume of the roger-beep accompanying the activation of certain buttons can
be adjusted according to 8 levels. The roger-beep can be adjusted and excluded.
To adjust the volume proceed as foll ...
Fuel filler cap
To open the cap, turn it anticlockwise and then remove it.
During refuelling, secure the cap to the anti-loss device on the flap as shown
in the figure.
On certain versions the cap has a keylock ...
Adding Washer Fluid
The windshield washer fluid reservoir is located in the engine compartment, and
the fluid level should be checked at regular intervals. Fill the reservoir with
windshield washer solvent (not engin ...