Page 407 of 469
Display messages
Possible causes/consequences and M
MSolutions
Ý Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. #
Start the engine. #
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: #
Tryto start the engine again. #
Ifth e engine does not start, consult a qualified specialist workshop.
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. #
Switch off electrical consumers that are not required. #
Connect a suitable charge r appro vedfo r Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (/ page316).
The 48 V bat tery isch arge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. #
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y. 404
Display messages and warning/indicator lamps
Page 413 of 469
Display messages
Possible causes/consequences and M
MSolutions
Ø Top up AdBlue Emergency
op. in XXX miles See Own-
er's Manual *
The low AdBlue ®
leve l will lead tolimited per form ance af terth ere maining dis tance displ ayed has been co vered. #
Top up AdBlue ®
immediately (/ page 172).
Ø XX,X l Top up AdBlue Emer.
op.: max. XXX km/h Start
not poss. in XXX km *
The low AdBlue ®
leve l will lead tolimited per form ance from the speed displa yed.
Af terth ere maining dis tance displ ayed has been co vered, it will no longer be possible tostart the engine. #
Add at least the amount of AdBlue ®
displ ayed (/ page172).
Ø XX,X l Top up AdBlue
Switch on ignition, wait 60
sec. or eng. start not poss. *
The AdBlue ®
tank is em pty. Yo u can no lon gerst art the engine. #
Add at least the amount of AdBlue ®
displ ayed (/ page172). #
Switch on the ignition and waitfor appro ximately 60 seconds. #
Start the engine. 41 0
Displaymessa ges and warning/indicator lamps
Page 414 of 469
Display messages
Possible causes/consequences and M
MSolutions
¯ AdBlue system fault See
Owner's Manual *
The AdBlue ®
sy stem is malfunctioning. #
Consult a qualified specialist workshop immediatel y.
¯
AdBlue system fault Emer-
gency op. in XXX miles See
Owner's Manual *
The AdBlue ®
sy stem is malfunctioning. Performance will be reduced once there maining dis tance displ ayed has
been co vered. #
Consult a qualified specialist workshop immediatel y.
¯
AdBlue system fault Emer.
op.: max. XXX km/h Start
not poss. in XXX km *
Po we rre striction due totheAd Blue ®
sy stem fault. Af terth e dis tance displ ayed has been co vered, it will no longer
be possible tostart the engine. #
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 411
Page 415 of 469
Display messages
Possible causes/consequences and M
MSolutions
¯ AdBlue system fault Engine
start not possible *
The AdBlue ®
sy stem is malfunctioning. You can no lon gerst art the engine. #
Consult a qualified specialist workshop immediatel y.Engine oil
Display messages
Possible causes/consequences and M MSolutions
5 Check eng. oil lev. when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (/ page 292).
No tes on engine oil (/ page 351).412
Displaymessa ges and warning/indicator lamps
Page 416 of 469
Display messages
Possible causes/consequences and M
MSolutions
5 Add 1 litre engine oil when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
When next refuelling, add 1 litre of engine oil (/ page 292).
No tes on engine oil (/ page 351).
5 Engine oil level Reduce oil
level *T
he engine oil le vel is too high.
* NO
TEEngine dama gecaused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a qualified specialist workshop immediately and ha vethe engine oil le velre duced.
5 Engine oil level Stop vehi-
cle Switch engine off *T
he engine oil le vel is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Switch off the engine. Display messages and
warning/indicator lamps 413
Page 417 of 469
Display messages
Possible causes/consequences and M
MSolutions #
Add 1 l of engine oil (/ page 292). #
Check the engine oil le vel.
No tes on engine oil (/ page 351).
5 Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient oil pressure #
Avoid driving with insuf ficient oil pressure. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
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. 414
Displaymessa ges and warning/indicator lamps
Page 418 of 469
Wa
rning and indicator lamps Overview of indicator and
warning lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and
wa rning lamps may briefly light up or flash. This
behaviour is non-critical. These indicator and
wa rning lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y.
Instrument display Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown. Indicator and
warning lamps:
6 Re
stra int sy stem (/ page416)
ü Seat belt (/
page 416)
ï Trailer hit ch (/page 417)
Ù Powe rst eering (/ page417)
ÿ Coolantte mp erature (/ page418)
; Engine diagnostics (/
page 418)
% Preglow
# Electrical
fault (/ page418)
8 Re
ser vefuel with fuel filler flap loca‐
tion indicator (/ page418)
! Electric pa
rking brake (red)
(/ page 421)
! Electric parking brake (yellow)
(/
page 421)
J Brakes (yellow) (/
page 421)
J Brakes (red) (/
page 421)
L Distance warning (/ page 423)
ä AIRBODY CONTROL (/ page 423)
ä DYNA MIC BODY CONTROL
(/ page 423) !
ABS (/
page 424)
÷ ESP®
(/ page 424)
å ESP®
OFF (/ page 424)
h Ty
re pressure monitoring sy stem
(/ page 427)
T St
anding lights (/ page122)
L Low beam (
/page 122)
K High beam (/
page124)
#! Tu
rn signal light (/ page124)
R Re
ar fog light (/ page122) Displ
aymessa ges and warning/indicator lamps 415
Page 419 of 469
Occupant saf
ety Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
6 Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
*The restra int sy stem is malfunctioning (/ page 36). &
WARNING Risk of inju rydue tomalfunctions in there stra int sy stem
Components in there stra int sy stem may be activated unintentionally or not deploy as intended in an accident. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Notethe messages on the multifunction displa y. #
Consult a qualified specialist workshop immediatel y.
ü
Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
*T he driver or front passenger has not fastened his/her seat belt while theve hicle is in motion. #
Fasten your seat belt (/ page 40).
*T here are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. 416
Displaymessa ges and warning/indicator lamps
