Remove tank covers (sect. 5 - 2, Removal of the fuel tank fairings).
Remove hoses (8) and (15) from the filler cap assembly (10).
Open the filler cap.

Unscrew the outer screws (17) securing the ring nut to the filler cap recess.
Remove the filler cap assembly (10).

Removal of the fuel tank
Refitting the filler capOn-board computers and the can line
The following on-board computers make up the electrical system of the diavel
and are connected with each other via the
can line (or network):
Master dashboard
Slave dashboard
Hands free (facilitated keyless start system)
Ecu (engine control unit)
Bbs (black box system or central elect ...
How to start the engine
With the motorcycle off and the dashboard on, the on/off switch is turned to
"run off"
With the motorcycle and dashboard on, the on/off switch is turned to "run
off".
To start the engine, simply push the on/off switch up to "run on" and press the
black start button.
...
Turn indicators (automatic reset)
The instrument panel controls the automatic reset of the turn
indicators.
After activating one of the two turn indicators, they can be
deactivated using the reset button (12, fig. 12).
If the turn indicator is not "reset" manually, the instrument
panel will automatically switch it ...