
#
When driving on unpa vedro ads or off-
ro ad, regular lych eck theve hicle under‐
side. #
Remo vetrapped plants or other flam‐
mable material. #
Ifth ere is damage, consult a qualified
specialist workshop immediately. *
NO
TEDama getotheve hicle af ter driving
off-road When driving off-road or on unpa
ved sur fa‐
ces, fore ign bodies such as stones and
branches could become trapped on theve hi‐
cle underside, on wheels and tires, causing
damage totheve hicle.
Fo reign bodies could cause thefo llowing
damage:
R Damage the suspension, the fuel tank or
th e brake sy stem.
R Disturb the balance and cause vibrations. #
Regular lyremo veany trapped fore ign
bodies, e.g. stones and branches. #
After driving off-road, check carefully
whe ther there is any damage tothe
ve hicle. #
Ifth ere is damage, ha vetheve hicle
ch ecked at a qualified specialist work‐
shop. When driving off-road or on unpa
ved sur faces,
ch eck theve hicle underside, wheels and tires
re gularly at regular inter vals. In particular,
re mo veany trapped fore ign bodies, e.g. stones
and branches.
Obser vethefo llowing no tesre ga rding fore ign
bodies of this kind:
R They may damage the suspension, the fuel
ta nk or the brake sy stem.
R They may disturb the balance and cause
vibrations.
R They may be flung out from theve hicle when
yo u continue driving.
If th ere is any damage, inform a qualified special‐
ist workshop.
When driving off-road on steep inclines, you must
make sure that the DEF tank is su fficiently filled.
Therefore, ensure a le vel of at least ten li ters
before off-road driving. When driving off-road and on con
stru ction sites,
sand, mud and water,also mixed with oil, can get
into the brakes. This may lead toare duction in
braking ef fect or total brake failure, also as a
re sult of increased wear. The braking characteris‐
tics will vary depending on the material that has
got into the sy stem. Clean the brakes af ter driv‐
ing off-road. If youth en notice a reduced braking
ef fect or hear scraping noises, ha vethe brake
sy stem checked immediately at a qualified spe‐
cialist workshop. Adjust your driving style to the
ch anged braking characteristics.
Driving off- road or on con stru ction sites increa‐
ses the possibility of vehicle damage which may
in turn lead tothefa ilure of cer tain major assem‐
blies and sy stems. Adapt your driving style to the
off-road driving conditions. Drive carefull y.Ha ve
any vehicle damage rectified at a qualified spe‐
cialist workshop as soon as possible.
When driving on rough cross-country terrain, do
not shift the transmission into the neutral posi‐
tion and do not disengage the clutch. You could
lose control when attem pting tobrake theve hicle
with the service brake. If your vehicle cannot
manage an uphill incline, drive back down in
re ve rsege ar.
When loading your vehicle for off-road driving or
on a construction site, keep theve hicle's center
of gr avity as low as possible.
Checklist before off-road driving R Check the fuel and DEF le vels (/ page163)
and add if necessary (/ page 125).
R Engine: check the oil le vel and add oil if nec‐
essary (/ page 205). Before driving up or
down extreme inclines or slopes, fill th e oil to
th e maximum le vel.
% If
yo u drive up or down extreme inclines or
slopes, the00B2 symbol may appear in the
multifunction displa y.The engine operating
saf ety is not put at risk if you ha vefilled the
engine oil tothe maximum le vel before the
jou rney.
R Vehicle tool kit: check that the jack is work‐
ing (/ page 250).
R Make sure that a lug wrench (/ page 250), a
wo oden underlay forth e jac k,aro bust tow
ro pe, a folding spade and a wheel chock are
car ried in theve hicle.
R Tire s and wheels: check the tire tread dep th
( / page 232) and the tire pressure
(/ page 239). Driving and parking
111

DSR (/
page 120)
00D9 HOLD fu
nction (/ page 145)
00CE Ad
aptive Highbeam Assist(/ page81 )
00D7 AT
TENTION ASSIST deactivated
003E A door is not fully closed.
00C5 Re
ar wind owwiper swit ched on
(/ page 89)
002E LO
W RANGE active (/ page119)
SOS
NOT
RE ADY Emergency call sy
stem not active Ac
tive Lane Keeping Assist switched
off (/ page155)
00D4 Ac
tive Brake Assi stdeactivated
(/ page 139) Blind Sp
otAssi stswitched off
(/ page 152) Se
tting the in strument lighting #
Turn brightness control knob 1upwards or
down wards.
The lighting on the Instrument Display and
th e cont rol elements in theve hicle interior is
set.
% In
vehicles without brightness contro l knob
1, the instrument lighting can be set via the
on-board computer (/ page170). Menus and submenus
Calling up functions on
the service menu On-board computer:
4 Service #
Select and con firm there qu ired function.
The following functions are available on the
Service menu:
R Messages: message memo ry (/ page 277)
R DEF : Displ aysth e DEF range and le vel
( / page 128)
R Tires :
- Che cksth e tire pressure with the tire
pressure monitoring sy stem
(/ page 239)
- Restarts the tire pressure monitoring sys‐
te m (/ page240)
R ASSYST PLUS: calls up the service due date
(/ page 202)
R Engine Oil Level : measures engine oil le vel
R Long-term consumption Calling up
the assistant display On-board computer:
4 Assistance #
Select the desired display and confirm.
The following displa ysare available on the assis‐
ta nt displ ay:
R Assi stant display
R Attention le vel (/ page 151) #
Swit chbetween the displa ysand con firm the
selected displa y. 16 6
Instrument Display and on-board computer

#
Take support 1from the brac ket on the
hood and pull it down wards. #
Inse rtthe support into brac ket below 2. &
WARNING Risk offire due toflammable
material in the engine compartment or
th eex haust sy stem
Clo ths or other flammable materials left in
th e engine compartment bymis take could
igni teupon coming into con tact wi thhot sec‐
tions of the engine or exhaust sy stem. #
Ensure that there are no flammable
ex tern al materials in the engine com‐
partment or on theex haust sy stem af ter
maintenance workhas been conducted. &
WARNING Risk of accident and inju ry
when opening and closing the engine
hood
When opening or closing the engine hood, it
may suddenly drop into the end position.
There is a risk of injury for an yone in the
engine hood's range of mo vement. #
Only open or close the engine hood
when there are no persons in the engine
hood's range of mo vement. *
NO
TEDama getothe hood Pushing
the hood closed with your hands
could damage it. #
Toclose the hood, let it drop from the
specified height. #
Toclose: liftthe hood slightl y. #
Movesupport 1tothe brac ket on the hood
and apply light pressure toengage it. #
Lowe rth e hood and let it drop from a height
of appr oximately 0.5 ft(15 cm). #
If it is still possible tolift the hood a little,
open the hood again and let it drop from a
height of appr oximately 0.7 ft(20 cm) until it
engages cor rectly. Engine oil
Che
cking the engine oil le vel with a dip stick &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain component pa rts in the engine com‐
partment can be very hot, e.g. the engine, the
cooler and pa rts of theex haust sy stem. #
Let the engine cool down and only
to uch the component parts described
as follo ws. Depending on
the engine, the dipstick may be in
va rying locations in the engine compartment.
Wa iting time before checking the oil le vel:
R engine at normal operating temp erature:
fi ve minutes
R engine not at normal operating temp erature
(the engine was only star ted briefly, forex am‐
ple): 30 minutes Dip
stick (e xamp le) #
Park theve hicle on an even sur face. #
Remo vedipstick 1and wipe it off. 204
Maintenance and care

If
yo u ha vetocar ryout any workinthe engine
compartment, touch only thefo llowing compo‐
nents:
R Hood
R Engine oil filler opening cap
R Washer fluid reser voir cap
R Coolant expansion reser voir cap &
WARNING Danger of bu rns when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine com‐
partment, you could come into con tact wi th
hot gases or other escaping operating fluids. #
Before opening the hood, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the hood closed and call
th efire service. &
WARNING Risk of scalding from hot
coolant
The engine cooling sy stem is pressurized,
particular lywhen the engine is warm. If you
open the cap, you could be scalded byhot
coolant spr aying out. #
Let the engine cool down before open‐
ing the cap. #
When opening the cap, wear pr otective
gl ove s and saf etygl asses. #
Open the cap slowly torelease pres‐
sure. Allow
the engine and the engine cooling sy stem
to cool down before checking the coolant le vel or
re filling coolant.
* NO
TEPaint wo rkdamage due tocoolant If coolant
gets on painted sur faces, the paint‐
wo rkcan be damaged. #
Add coolant carefully. #
Remo vespilled coolant. Checking
the coolant le vel Example: coolant
expansion reser voir #
Park theve hicle on an even sur face. #
Open the hood (/ page 202). #
Slowly turn coolant expansion reser voir cap
1 half a turn coun ter-clockwise and allow
exc ess pressure toescape. #
Turn coolant expansion reser voir cap 1fur‐
th er and remo veit. #
Check the coolant le vel.
There is enough coolant in coolant expansion
re ser voir if the coolant reaches the MAX
mar k.
Ad ding coolant #
Refill th e coolant tothe MAX mark on the
coolant expansion reser voir.
Only use coolant appr oved byMercedes-Benz to
avo id damaging the engine cooling sy stem. #
Replace coolant expansion reser voir cap 1
and tigh ten in a clo ckwise direction. #
Start the engine. #
After appro ximately five minutes, switch off
th e engine again and allow it tocool down. #
Che ckthe coolant le vel again and add coolant
if necessar y.
% Obser
veadditional coolant information
(/ page 269). Main
tenance and care 207

Display messages
Possible causes/consequences and 0050 0050Solutions
00AC *T
hefan mo tor is defective. #
Without a high engine load, continue tothe nearest qualified
specialist workshop. Ensure that the coolant temp erature dis‐
play remains below 248 °F (120 °C).
003A Check Fuel Filter *T
hewaterth at has accumulated in thewate r sepa rato r has reached
th e maximum le vel. #
Drain thewate r sepa rator (/ page 209).
00B3 Engine Oil Level Cannot
Be Measured *T
he electrical connection tothe oil le vel sensor has been inter rup‐
te d or the oil le vel sensor is defective.
The engine oil le vel has fallen tothe minimum le vel. #
Visit a qualified specialist workshop.
00B2
Engine Oil Pressure Stop
Switch Off Engine *D
isplay message for cer tain engines only:
The engine oil pressure is too lo w.
* NO
TEEngine damage caused bydriving with insuf ficient
engine oil pressure #
Avoid driving with insuf ficient engine oil pressure. #
Stop in a safe location immediately. Do not continue driving. #
Consult a qualified specialist workshop.
00B2
Check Engine Oil Level
(Add 1 Liter) *D
isplay message for cer tain engines only:
The engine oil le vel has fallen tothe minimum le vel.
* NO
TEEngine damage caused bydriving with insuf ficient
engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Che ckthe engine oil le vel at the next fuel stop.
To p up engine oil (/ page 205).
Obser vethe no tes on engine oil (/ page 267).
00B2
Engine Oil Reduce Oil
Level *D
isplay message for cer tain engines only:
The engine oil le vel is too high.
* NO
TEEngine damage caused bydriving with excess engine
oil #
Avoid long journe yswith excess engine oil. #
Visit a qualified specialist workshop immediately and ha vethe
engine oil suctioned off.
00B2 *D
isplay message for cer tain engines only:
The engine oil le vel is too lo w. 286
Display messages and warning and indicator lamps

Ad
aptive Highbeam Assist Cur‐
re ntly Una vailable See Opera tor's
Manual ............................................. 296
Ad aptive Highbeam Assist Inopera‐
tive .................................................. .296
0099 Additive Sy stem Fault Emer‐
ge ncy Op.: XXX mph See Opera‐
to r's Manual .................................... .290
0099 Additive Sy stem Fault See
Operator's Manual ...........................289
0099 Additive Sy stem Fault Starts
until Emerg. Op.: XXX See Opera‐
to r's Manual .................................... .289
Air Conditioning Malfunction See
Operator's Manual ............................ 294
Apply Brake toShift from 'P' ............ 295
00AD ATTENTION ASSIST Inopera‐
tive ................................................... 285
00AD ATTENTION ASSIS T:Take a
Break! ............................................... 285
0049 AutoLamp Function Inopera‐
tive ................................................... 296
Au xilia ryBattery Malfunction ........... 294
Blind Spot Assi stCur rently
Un available See Operator's Manual
.......................................................... 284
Blind Spot Assist Inoperative ............ 284
Blind Spot Assist Trailer NotMoni‐
to re d ................................................ 284
004D Check Brake Fluid Le vel.......... 279
Check Brake Pads See Operator's
Manual .............................................2 79
00AC CheckCoolant Le vel See
Opera tor's Manual ........................... 288
00B2 Check Engine Oil AtNext
Re fueling .......................................... 287
00B2Che ckEngine Oil Le vel (Add 1
Liter) ................................................ 286
003ACheck Fuel Filter ......................2 86
0049Che ckLeft Low Beam (e xam‐
ple) .................................................. .296
0077Che ckTire s .............................. 291
00B2 Check Washer Fluid ................2 9200AC
Coolant Too Hot Stop Vehicle
Tu rn Engine Off ................................ 288
Cruise Control Inoperati ve............... 283
00CE Currently Un available Cam‐
era Dirty .......................................... .283
Curr ently Un available Radar Sen‐
sors Dirty .........................................2 84
0025 Currently Una vailable See
Opera tor's Manual ........................... 282
00E5Curr ently Unavailable See
Operator's Manual ............................ 281
00AFDon't Forget Your Key.............. .291
Driver's Door Open & Transmission
Not in P Risk of Vehicle Rolling
Aw ay ................................................ 295
00B3Engine Oil Le vel Cann otBe
Measured ......................................... 286
00B2 Engine Oil Le vel Low Stop
Ve hicle Turn Engine Off .................... 286
00B2Engine Oil Pressure Stop
Switch Off Engine ............................. 286
00B2 Engine Oil Reduce Oil Le vel.... .2 86
0075Fr ont Left Malfunction
Service Required (e xample).............. 277
00D4 Fuel Le vel Low ........................ .285
0024Incline TooSt eep See Opera‐
to r's Manual ..................................... 278
003B Inoperative Battery Low ...........293
003B Inoperative Refuel Vehicle .......2 93
0025 Inoperative See Operator's
Manual ............................................. 282
00E5Inope rative See Operator's
Manual ............................................ .281
007A Inoperative See Operator's
Manual .............................................2 81
003B Inoperative See Operator ’s
Manual ............................................. 293
00AFKe yNot De tected (red dis‐
pl ay messa ge)...................................2 91
00AF KeyNot De tected (white dis‐
pl ay messa ge).................................. 292 Index
311