428 Practical hints
What to do if …
On the pages that follow, you will find a 
compilation of the most important warning 
and malfunction messages that may 
appear in the multifunction display.
For your convenience the messages are 
divided into two sections:
Text messages (page 429)
Symbol messages (page 444)
Warning!G
No messages will be displayed if either the 
instrument cluster or the multifunction 
display is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such 
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning 
messages or the failure of any systems. 
Driving characteristics may be impaired.
If you must continue to drive, do so with 
added caution. Contact an authorized 
Mercedes-Benz Light Truck Center as soon 
as possible.
iSwitching on the ignition causes all 
instrument cluster lamps (except high beam 
headlamp indicator lamp, and turn signal indica-
tor lamps unless activated) as well as the multi-
function display to come on. Make sure the 
lamps and multifunction display are in working 
order before starting your journey.