
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
5
Add 1 litre engine oil when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* N NOOTE
TE Engine damage caused bydriving with insu1cient engine oil #
Avoid long journe yswith insu1cient engine oil. #
When next refuelling, add 1 lit reof engine oil (/ page 309).
No tes on engine oil (/ page 368).
5
Engine oil level Reduce oil
level *T
he engine oil le vel is too high.
* N
NO OTE TE Engine damage caused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a quali/ed 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.
* N
N O OTE
TE Engine damage caused bydriving with insu1cient engine oil #
Avoid long journe yswith insu1cient engine oil. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Switch o. theve hicle. Displ
aymessages and warning/indicator lamps
431
431

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Add 1 l of engine oil (/ page 309). #
Check the engine oil le vel.
No tes on engine oil (/ page 368).
5
Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* N
NO
OTE
TE Engine damage caused bydriving with insu1cient oil pressure #
Avoid driving with insu1cient oil pressure. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Switch o. theve hicle. #
Consult a quali/ed specialist workshop.
5
Engine oil level cannot be
measured *T
he elect rical connection tothe oil le vel sensor has been inter rupted or the oil le vel sensor is faulty. #
Consult a quali/ed speciali stwo rkshop. 432 432
Displ
aymessages and warning/indicator lamps

W
W
ar
ar ning and indicat
ning and indicat or lam
or lamps
ps Ov
Ov
er
ervie
vie w of indicat
w of indicat or and w
or and war
arning lam
ning lam ps
ps Some systems will per
form a self-test when the
ve hicle is switched on. Some indicator and warn-
ing lamps may brie0y light up or 0ash. This beha v-
iour is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or 0as haTer theve hicle has been star ted or dur-
ing a journe y.
Ins
Ins tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown. Indicat
Indicat or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 434)
ü Seat belt (/ page 434)
ï Trailer hitch (/ page 435)
Ù Powe r steering (/ page 435)
ÿ Coolanttemp erature (/ page 436)
; Engine diagnostics (/ page 436)
% V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 436)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 436)
! Electric parking brake (yellow)
(/page 440)
! Electric parking brake (red)
(/page 440)
J Brakes (yellow) (/ page 440)
J Brakes (red) (/ page 440)
L Distancewarning (/ page 442)
Ó Active Brake Assist (/ page 442)
ê Active Brake Assist (/ page 442)ä
AIR BODYCONTROL (/ page 442)
ä DYNAMIC BODY CONTROL
(/ page 442)
! ABS (/page 443)
÷ ESP®
(/ page 443)
å ESP®
OFF (/ page 443)
h Tyre pressure monitoring system
(/ page 446)
T Standing lights (/ page 129)
L Low beam (/ page 129)
K High beam (/ page 131)
#! Turn signal lights (/ page 131)
R Rear fog light (/ page 129)
Symbols on t
Symbols on t he centr he central display:
al displ ay:
É DriveAway Assist (/ page 240)
L CrossTra1c Ale rt (/ page 241)
º Manoeuv ring brake function (/ page 241) Display messa
ges and warning/indicator lamps
433
433

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational. &
W
W ARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedu reand do not re-couple the trailer until the display message disappears. #
Notethe messages on the instrument displa y.Engine
Engine
W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ÿ
Coolant warning lamp (red) *T
he red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty 436
436
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
R The engine coolant pump is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120°C. &
W
WARNING
ARNING Risk of burns when opening the bonnet
If yo u open the bonnet in theeve nt of an overheated engine or /re in the engine compartment, thefo llowing situa-
tions may occur:
R You may come into contact with hot gases.
R You may come into contact with other escaping hot operating 0uids. #
Before opening the bonnet, allow the engine tocool down. #
Intheev ent of a /re in the engine compartment, keep the bonnet closed and call the /re service. #
Stop immediately in accordance with the tra1c conditions and switch o. theve hicle. Do not continue driving. #
Notethe messages on the instrument displa y.
If t If t he coolant t
he coolant t em
em per
per atur
atur e displa
e displa y is at t
y is at the low
he lower end of t
er end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Consult a quali/ed specialist workshop.
If t
If t he coolant t he coolant t em
emper
per atur
atur e displa
e displa y is at t
y is at the upper end of t
he upper end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Exit theve hicle and keep a safe distance from it until the engine has cooled down. #
Check the coolant le vel (/ page 310). Display message
s andwarning/indicator lamps
437
437

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. In doing so, ensu rethat the
coolant temp erature display remains below 120°C.
ÿ
Coolant warning lamp (yel-
low) *T
he yellow coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The charge air, transmission oil or battery cooling is faulty
R The radiator shutters are bloc ked or defective #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop.
; Engine diagnosis warning
lamp *T
he yellow engine diagnostics warning lamp is lit while the engine is running.
A malfunction has occur red in the engine, theex haust system or the fuel system.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode. #
Have theve hicle checked as soon as possible at a quali/ed specialist workshop.
V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times aTer refuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency ope ration mode is cancelled. The vehicle need not
be checked. 438
438
Display messages and
warning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
#
Electrical fault warning lamp *T
hered electrical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the instrument displa y.
8
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser vewarning lamp lights up while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel. Display messages and
warning/indicator lamps
439
439

Fu
nction................................................ 134
A
A dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus t Plus
Fu nction................................................ 135
Switching on/o..................................... 136
A
A dBlue
dBlue ®
®
Ad ditives................................................ 367
Capacity................................................ 368
No tes..................................................... 178
Purit y.................................................... .367
To pping up............................................ .179
A
A dditional door lock
dditional door lock ....................................... 78
A
A dditiv
dditiv es
es
Ad Blue ®
......................................... 179, 367
Engine oil............................................... 368
Fu el....................................................... 365
ATer
ATer -sales
-sales ser
service
vice, ASS YST PLUS................. 305
AIR BOD
AIR BOD Y C
Y CONTR
ONTR OL
OL
Fu nction................................................ 222
Setting.................................................. .223
Air conditioning menu
Air conditioning menu
Air distribution....................................... 148
Calling up.............................................. 147
Climate control...................................... 148 Ionisation............................................... 149
St
ationary heater/ ventilation................. 152
Air dis
Air distr tribution
ibution
MBUX multimedia system...................... .148
Setting................................................... 146
Air fr Air fr eshener syst
eshener syst em
em.................................... 149
Air inlet
Air inlet........................................................ 312
Air pr Air pr essure
essure................................................. 342
Air suspension
Air suspension, AIR BODY CONTROL........... .222
Air v
Air v ents
ents
adjusting (AIRSCARF)............................. 156
Setting................................................... 155
Air/w Air/w at
ater duct
er duct............................................. 312
Airbag
Airbag, Occupant saf ety
Au tomatic front passenger airbag shut
o............................................................. 50 Deployment............................................ .41
Fr ont airbag............................................. 47
Overview.................................................. 47
PA SSENGER AIR BAG indicator la mps...... 51
Pr otection................................................ 48
Re duced pr otection.................................. 49 Air0ow
Air0ow
Setting................................................... 146
AIRSC AIRSC ARF
ARF
Ad justing the outlets.............................. 156
Alar
Alar m syst
m syst em
em,ATA
Interior pr otection function....................... 97
All-wheel dr
All-wheel dr ive
ive, 4MATIC................................ 175
Ambient lighting
Ambient lighting........................................... 138
Animals
Animals Pets in theve hicle.................................... 74
Anti-loc
Anti-loc k br
k braking syst
aking syst em
em, ABS..................... .190
Anti-t
Anti-theT heTalar
alarm syst
m syst em
em,ATA ........................... 96
Anti-t
Anti-theT heTprot
pr otection
ection, ATA
Ad ditional door loc k................................. 78
Immobiliser.............................................. 96
Appr ov
Approv al numbers
al numbers....................................... .360
Apps
Apps
Mercedes me calls................................. 285
Mercedes me connect........................... 288
Assist Assist ance syst ance syst ems
ems...................................... 189
ASS YS
ASS YST PL
T PL US
US
Battery disconnection period s................ 306 Index
449
449