When the knurled ring is at 
push
the lever towards the dashboard (stable position).
The warning light 
on the instrument
cluster will come on.
Pulling the lever towards the steering wheel again, the main beams are turned off and the dipped beams on.
See also:
“Follow me home” device
This function allows the illumination of the space in front of the car.
Activation
With the ignition key at STOP or removed, pull the left-hand stalk towards the
steering wheel and operate it wi ...
Boot light
To replace the bulb:
1) Remove the lens A-fig. 39 as shown by the arrow.
2) Open the bulb holder B and remove the bulb C (clipped in).
...
Water in diesel fuel filter
The warning light on the dial turns on (on certain versions a message is displayed
on the reconfigurable multifunction display) when there is water in the diesel fuel
filter.
Turning the igni ...