Ve
hicles with Traf fic Sign Assis t:de tected
instructions and traf fic signs (/ page 215). Ad
justing the in stru ment lighting #
Turn brightness control 1up or down.
The lighting of the instrument display and in
th e control elements of theve hicle interior is
adjus ted. Menus and submenus
Fu
nctions on the service menu of the on-
board compu ter On-board computer:
4 Service #
Toselect the function: swipe upwards or
down wards on the left-hand Touch Control. #
Press the left-hand Touch Control.
Fu nctions on theService menu:
R Message memory (/ page442)
R AdBlue: Adblue ®
ra nge and fill le vel
R Tyres:
- Check the tyre pressure with the tyre
pressure monitor (/ page411)
- Restart the tyre pressure monitor
(/ page 412)
R ASSYST PLUS : calls upthe service due date
(/ page 374)
R Vehicles with a widescreen cock pit:Cool-
ant : coolant temp erature display
R Engine oil level: engine oil le vel Calling up
the assistant display On-board computer:
4 Assistance
% Ve
hicles with the instrument display in
th e widescreen cockpit: whenyou ha ve
th e design set toProgressive ,yo u can view
th e assis tance graphic in the left-hand area
of the instrument displa y.
The following displa ysare available on the assis‐
ta nt displ aymenu:
R Assis tant displ ay
R Attention le vel (/ page 213) #
Toswitch between the displa ys:swipe
upwards or down wards on the left-hand
To uch Control. 230
Instru ment Display and on-board computer
Display messages
Possible causes/consequences and M
MSolutions #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
8
Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel. Engine oil
Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. #
Consult a qualified specialist workshop. 466
Display messages and warning/indicator lamps
