#
Immedia tely rinse su rfaces that come in
con tact wi thDEF when filling with water
or remo veDEF wi tha damp clo thand
cold water.
If DEF has already cr ystallized, clean using a
spon geand cold water. If
yo u open the DEF tank, small amounts of
ammonia vapor may be released. Do not inhale
any ammonia vapor that may be released. Fill the
DEF tank only in well-ventilated areas.
DEF consum ption and filling capacity
DEF consum ption
Like fuel consum ption, DEF consum ption is highly
dependent upon driving style and operating con‐
ditions. DEF consum ption is usually within a
ra nge of 0 and 10% of the fuel consum ption. If
necessar y,DEF mu stbe refilled in acco rdance
with the instructions when there fill message is
displa yed in the instrument clus ter.This may also
be necessary between the scheduled mainte‐
nance.
To tal capacity of DEF tank Ve
hicl eT otal capacity
All model s5 .8gal (22 liters ) Exhau
stgas af tertre atment
The vehicle must be operated with DEF if the
ex haust gas af tertre atment sy stem is tofunction
cor rectl y.
If yo u operate theve hicle without DEF or with
emissions-rele vant malfunctions, the legal MOT
appr oval is in validated. The vehicle could be pro‐
hibited from public road use byan of ficial ordi‐
nance.
It may be improper or punishable in some coun‐
tries tooperate a vehicle that uses no DEF or one
th at does not comply with the specifications of
th ese operating instructions.
Engine management monitors theex haust gas
af te rtre atment components for compliance with
emissions la wsand regulations. If you attem ptto
operate theve hicle without DEF, with diluted DEF
or with a dif fere nt reducing agent, this will be
de tected bythe engine management sy stem.
Other emissions- releva nt malfunctions, e.g.
me tering malfunctions or sensor er rors, are also
de tected and log ged. The engine management sy
stem subsequently
pr eve nts the engine being restar ted af ter issuing
a wa rning message.
Therefore add DEF tank regular lyduring vehicle
operation or, at the latest, af terre ceiving thefirst
wa rning message via the instrument clus ter. Engine oil
Note
s on engine oil
Obser vethe no tes on operating fluids
(/ page 340). *
NO
TEEngine damage caused byan
incor rect oil filter, incor rect oil or addi‐
tives #
Do not use engine oils or oil filters other
th an those which meet the specifica‐
tions necessary forth e prescribed
service inter vals. #
Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an presc ribed. #
Do not use additives. #
Have the engine oil changed af terthe
prescribed inter vals. Mercedes-Benz
recommends having the oil
ch anged at a qualified specialist workshop.
Fu rther information on engine oil and oil filter:
R inthe MB Specifications for operating fluidsat
http://be vo.mercedes-benz.com (by entering
th e designation)
R at a qualified specialist workshop 344
Tech nical da ta
Quality and capacity of engine oil
%
The containers of
theva rious engine oils are
mar ked with theAC EA (Association of Euro‐
pean Automotive Manufacturers) and/or API
(America Petroleum Institu te) classifications.
Only use appr oved engine oils that cor re‐
spond tothe MB Specifications for operating
fl uids and the prescribed ACEA and/or API
classi fications named bel ow. Engine oils of
ot her grades are not permissible and can
re sult in the loss of the New Vehicle Limited
Wa rrant y.The use of other engine oils not
appr ovedfo r diesel engines can dama gethe
diesel particulate filter (DPF).
MB- Freigabe orMB-App roval Gasoline engine MB-F
reigabe orMB-
Appr oval
M2 74 229.5Diesel engine
sMB-Freigabe orMB-
Appr oval
OM642/OM65 1228.51,229.3 1,
229.5 1,229.52* *
Re commended for lo west possible fuel con‐
sum ption (lo westSA E viscosity class in ea ch
case; obser vepossible restrictions of the
appr ovedSA E viscosity classes).
To achie vethe lo west possible fuel consum ption,
it is recommended touse the engine oil specifica‐
tions mar ked in theta ble forth e lo west SAE vis‐
cosity class. Obser veany possible restrictions of
th e appr ovedSA E viscosity classes.
If th e engine oils lis ted in theta ble are not availa‐
ble, you may add a maximum 1.1 US qt (1.0 liter)
of thefo llowing engine oils once only:
R Vehicles with a gasoline engine: MB-Frei‐
ga be or MB-Appr oval 229.3 or ACEA A3/B4
R Vehicles with a diesel engine: MB-Freigabe
or MB-Appr oval 228.5, 229.3 or 229.5
Multig rade engine oils of the prescribed SAE clas‐
si fication (viscosity) may be used all year round,
ta king the outside temp erature into account. Vi
scosity of the engine oil
* NO
TEEngine damage due toincor rect
SA E classi fication (viscosity) of the
engine oil If
th eSA E classi fication (viscosity) of the
engine oil added is not suitable for prolonged
low outside temp eratures, it may cause
engine damage.
The temp erature readings of theSA E classi fi‐
cation are al ways based on fresh oil. Engine
oil ages when driving as a result of soot and
fuel residue. The characteristics of engine oil
de teriorate significantly at low outside tem‐
peratures. #
Use an engine oil of the appropriate SAE
classi fication at low outside temp era‐
tures. #
Use oil for all-year-round operation. The
temp erature readings of theSA E classi fica‐
tion are al ways based on fresh oil. The temp era‐
ture characteristics of the engine oil, especially at
low outside temp eratures, can de teriorate signifi‐
cantly due toaging when driving.
Therefore, Mercedes-Benz recommends that you
ch ange the engine oil before thest art of the cold
season. Only use an appr oved engine oil in the
prescribed SAE classi fication forth is purpose. The viscosity indicates
theflow characteristics of
a fluid. With rega rd toengine oil, a high viscosity
is synonymous with thick liquid and a low viscos‐
ity with thin liquid. Depending on the outside
te mp eratures, select the engine oil according to
th eSA E classi fication (viscosity). The table sho ws
th eSA E classi fications tobe used. The low tem‐
perature characteristics of engine oils can de teri‐
orate significantly during operation due toaging
and soot and fuel acc retion, forex ample. A regu‐
lar oil change with an appr oved engine oil in the
appropriate SAE classi fication is therefore
stro ngly recommended. Te
ch nical da ta345
Ad
ditive
* NO
TEEngine damage due touse of addi‐
tives in the engine oil The use of additional additives in
the engine
oil can damage the engine. #
Do not use any additional additives in
the engine oil. Miscibility of engine oil
The benefits of high-quality engine oils are
re
duced bymixing oil.
We recommend that you on lyuse engine oil of
th e same grade and SAE classi fication as the oil
fi lled at the last oil change. If, in exceptional
cases, engine oil of the type in the engine is not
av ailable, use ano ther appr oved mineral or syn‐
th etic engine oil.
Ve hicles with a diesel engine: ifth e grade is
not available, you may also refill with engine oils
acco rding toMB-F reigabe or MB-Appr oval 228.5,
229.3 or 229.5. The refill qu antity is then limited
to maximum 1.1 US qt (1.0 liter).
Yo u must then ha vean oil change car ried out at
th e earliest possible opportunit y.
Ve hicles with a gasoline engine: ifth e grade is
not available, you may refill with engine oils
acco rding toMB-F reigabe or MB-Appr oval 229.3
or AC EA A3/B4. The refill qu antity is then limited
to maximum 1.1 US qt (1.0 liter).
Yo u must then ha vean oil change car ried out at
th e earliest possible opportunit y.
Engine oils are di fferentiated according to:
R Engine oil brand
R Grade (MB-F reigabe or MB-Appr oval)
R SAE classi fication (viscosity)
Oil change inter val
The on-board computer automatically sho ws the
date of the next oil change as an event messa ge
on the displa y.
Mercedes-Benz recommends having the oil
ch anged at a qualified specialist workshop. Engine oil capacities Engine
Engine oil
M2 74 Approx. 11.1 qt
(10.5 liters)
OM642 Approx.13 .2 qt
(12.5 li ters)
OM651 (rear wheel
drive) Appr
ox.12 .2 qt
(1 1. 5 liters) Information on oil consum
ption
Depending on the driving style, theve hicle con‐
sumes a maximum of 1.1 US qt (1.0 liter) of
engine oil per 620 miles (1000 km).
In thefo llowing cases, oil consum ption may also
exc eed this limit:
R The vehicle is ne w.
R You use theve hicle mostly under arduous
conditions.
R You drive frequent lyat a high engine speed.
Re gular maintenance is a prerequisite forfa vo ra‐
ble consum ption figures. You can only assess the
oil consum ption af ter a long journe y.Check the
oil le vel in the engine regularly, e.g. weekly or
eve rytime youre fuel. Note
s on brake fluid Obser
vethe no tes on operating fluids
(/ page 340). &
WARNING Risk of an accident due to
va por poc kets form ing in the brake sys‐
tem
The brake fluid con stant lyabsorbs moisture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va por poc kets may form inthe brake sy stem
when the brakes are applied hard.
This causes the braking ef fect to be impaired. #
Have the brake fluid rene we d at the
specified inter vals. *
NO
TEDama getopaint, plastic or rubber
by brake fluid There is a
risk of damage toproperty if brake
fl uid comes into con tact wi thpaint, plastic or
ru bber. 346
Tech nical da ta
Display messages
Possible causes/consequences and 0050 0050Solutions &
WARNING Risk of accident if the engine hood is unlatched
while driving
An unloc ked engine hood may open up when theve hicle is in
motion and block your vie w. #
Never unlatch the engine hood while driving. #
Before every trip, ensure that the engine hood is latched. #
Stop theve hicle immediately in accordance with the traf fic con‐
ditions. #
Close the hood.
003B
Inoperative See Opera-
tor’s Manual *T
hestationary heater is temp orarily malfunctioning. #
When theve hicle is at a standstill in a horizontal position and
th e engine has cooled down: try toswitch on thest ationary
heater four times, leaving a gap of se veral minutes between
each attem pt. #
Ifth est ationary heater does not swit chon: consult a qualified
specialist workshop.
003B
Inoperative Refuel Vehi-
cle *T
here is too little fuel in the fuel tank.The stationary heater cannot
be swit ched on. #
Refuel theve hicle.
003B
Inoperative Battery Low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched off. #
Drive an extended di stance until the battery has been suf fi‐
ciently charge d again.
00CC
Steering Malfunction
Increased Physical Effort
See Operator's Manual *T
hesteering po wer assi stance is malfunctioning. &
WARNING Risk of an accident due toaltered steering char‐
acteristics
If th e po wer assi stance of thesteering fails partially or com‐
ple tely,yo u will need touse more forc eto steer. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immedi‐
atel y. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediately.
00CC
Steering Malfunction
Stop Immediately See
Operator's Manual *T
hesteering is malfunctioning. Steerability is heavily impaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's oper‐
ating saf ety is jeopardized. 372
Displaymessa ges and warning and indicator lamps
Display messages
Possible causes/consequences and 0050 0050Solutions
0049
Check Left Low
Beam (exa mp le) *T
he bulb in question is faulty. #
Visit a qualified specialist workshop.
or #
Check whe ther changing the bulb is permitted. Indicator and
warning lamps Overview of indicator and
warning lamps When
the ignition is switched on, many sy stems
per form a self-test. Some indicator and warning
lamps may switch on or flash temp orarily during
th is time. This behavior is no cause for alarm.
These indicator and warning lamps indicate a
malfunction only if they light up or flash af terthe
engine has been star ted or during a journe y.
Indicator and warning lamps:
0058 Low beam (/
page84)
0060 Pa
rking lamps (/ page84)
0057 High beam (/
page 85)
003E003D Tu
rn signal lights (/ page 85)
005E Re
ar fog light (/ page84)
00E9 Seat belt not
fastened
(/ page 383)
0027 and
004D USA: Brakes (red) (/
page377)
004D Canada: Brakes (red) (
/page 377)
004D Brakes (yell
ow) (/ page377)
0025 ABS malfunction (/
page 377)
002E Off-
road gear
00E5 ESP®
(/ page 377)
00BB ESP®
OFF (/ page 377)
00D4 Ac
tive Brake Assi stswitched off
(/ page 149)
0049
and 0024 US
A: Electric pa rking brake applied
(red) (/ page377)
0024 Canada: Electric parking brake
applied (red) (/
page377)
0024 Electric parking brake (yell
ow)
( / page 377)
00CC Po
we r-assis tedsteering malfunction
(/ page 383)
003D Elect
rical malfunction
(/ page 384)
0075 Re
stra int sy stem (/ page377) 00B9
Che
ckEngine (/ page 384)
00D4 Fu
elreser vewith fuel filler cap loca‐
tion indicator (/ page 384)
00AC Coolant
too hot/cold (/ page 384)
00BA Dis
tance warning (/ page 383)
0028 Preglow
0077 Ti
re pressure monitor 376
Displaymessa ges and warning and indicator lamps
Engine
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00AC
Coolant warning lamp The
red coolant warning lamp lights up while the engine is running.
* Po ssible causes:
R temp erature sensor malfunctioning
R coolant le velto o low
R air supply tothe engine radiator obstructed
R engine radiator fanfa ulty
If a warning tone also sounds, the coolant has exceeded thete mp era‐
ture of 248 °F (120 °C). &
WARNING Danger of bu rns when opening the hood
If yo u open the hood when the engine has overheated or during a
fi re inthe engine compartment, 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 compartment, keep the
hood closed and call thefire service. #
Stop immediately in accordance with the traf fic conditions and
switch off the engine. Do not continue driving. #
Obser vethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp era‐
ture scale: #
Consult a qualified specialist workshop.
Otherwise: #
Leavetheve hicle and keep a safe dis tance from theve hicle until
th e engine has cooled down. #
Check the coolant le vel(/ page 282). #
Ensure that the air supply tothe engine radiator is not obstructed. #
Without subjecting the engine toexc essive stra in, continue tothe
nea rest qu alified specialist workshop. Ensure that the coolant
te mp erature display remains below 248 °F (120 °C).
003D
Electrical malfunction
wa rning lamp The elect
rical malfunction redwa rning lamp lights up.
*A malfunction has occur red in the electrics. #
Read the messages on the multifunction displa y.
00D4
Fu elreser vewarning
lamp The fuel
reser veyellow warning lamp lights up while the engine is on.
*T he fuel supplies ha vereached there ser veleve l. #
Refuel. 384
Displaymessa ges and warning and indicator lamps
To
pping up ........................................ 281
Engine output Notes on changes .............................. .26
ENR (electronic le vel control) .............128
Fu nction ........................................... 12 8
Lo we ring theve hicle .........................1 29
Manually inflating air bello ws........... 13 2
Problems .......................................... 13 3
Ra ising theve hicle ............................1 29
Entering and exiting .............................. .50
Entering characters ............................ .207
Fu nction/no tes ................................ 207
Setting theke yboard ........................ 209
Using the media display ...................2 08
Environmental pr otection
No tes .................................................. 21
ESC (Electronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist .............................. 14 8
Tr ailer stabilization .......................... .148
ESP ®
(Electronic Stability Prog ram) ...147
Ac tivating/deactivating .................... 14 8
Fu nction/no tes ................................ 147
Exhaust emission moni toring .............. 11 3
Exterior lighting Care ................................................ .288
Exterior lighting see Lights F
Fa tigue de tection
see ATTENTION ASSIST
Favo rites
Ad ding .............................................. 204
Calling up .........................................2 04
Deleting ............................................ 205
Moving ............................................. 205
Overview .......................................... 204
Re naming ......................................... 205
Firs t-aid kit (soft sided) .......................292
Flat tire ................................................. .294
Changing a wheel ............................ .327
No tes ................................................ 294
Floor co vering
Ins talling/ removing (s tarter bat‐
te ry ) .................................................2 97
Floor mat ................................................ .83Fore
ign trip
Instructions ...................................... .113
symmetrical low beam ....................... 84
Fr ee software ........................................ .30
Fr equencies
Mobile phone .................................. .337
Tw o-w ayradio ...................................3 37
Fr ont airbag (driver, front passenger) .. 35
Fr ont door
Opening (from inside) ........................ .49
Unlocking (from inside) ...................... 49
Fr ont passenger bench seat
Fo lding the seat cushion forw ards/
backwards .......................................... 71
Fr ont seats
8- wa y adjustment options .................. 67
Ad justing (electrically) ........................ 67
Ad justing (manually) ..................... 64, 66
Memory function ................................ 67
Tu rning .............................................. .70
Wi th Seat Comfort Package ................ 66
Wi thout Seat Comfort Package .......... 64
Fu el ........................................................ 341
Ad ditives ...........................................3 41
Diesel ............................................... 341
Draining thefilter ............................ .285
E10 ................................................... 341
Flexible fuel vehicles .........................3 41
Fu elreser ve ..................................... 343
Gasoline ........................................... 341
Low outside temp eratures ................3 41
Problems .......................................... 13 5
Quality (diesel) .................................. 341
Quality (gasoline) .............................. 341
Re fueling .......................................... 13 3
Sulfur content ................................... 341
Ta nk capacity ................................... 343
Fu el consum ption (on-board com‐
puter) .................................................... .179
Fu el consum ption indicator
Calling up .......................................... 216
Fu ses ............................................. 304, 305
Before replacing ...............................3 04
Fu se box in the front-passen ger
fo ot we ll ............................................ 305
Fu se box in the seat base of the
driver's seat .....................................3 05
No tes ............................................... 304 396
Index
Glo
vebox ...........................................77
Sulfur content ....................................... 341
Summer tires ........................................3 08
Sur round lighting
Switching on/off ................................ 87
Sur round View
see 360° Camera
Switch-off delay time Exterior ............................................... 86
Interior ............................................... 90
Switching air-recirculation mode
on/off .................................................... 104
Switching on ignition (start/s top
button) .................................................. 109
Switching seat heating on/off ..............76
Switching synchronization function
on/off (control panel) ..........................103
Switching the A/C function on/off ....102
Switching there ar window
defros ter on/o ff................................... 104
Switching the windshield heater
on/off .................................................... 104
Sy stem settings
Ac tivating/deactivating PIN pro‐
te ction .............................................. 213
Re set function (multimedia sys‐
te m) .................................................. 215
Setting the dis tance unit ................... 213
Setting the time and date automat‐
ically .................................................2 10
Setting the time zone ........................ 210
Setting the time/date form at .......... .210
Sy stem settings
see Blue tooth®
see Data import/export
see Language
see Software update
see Wi-Fi T
Ta ilpipes (care) .................................... .288
Ta nk capacity
Fu el .................................................. 343
Re ser ve(fuel) ...................................3 43
Ta nk content
DEF .................................................. 344
Te ch nical data
Information ....................................... 337
No tes (trailer hitch) .......................... 349 Ti
re pressure monitor .......................3 17
Ve hicle identification plate ............... 338
Te lephone ...................................... 182, 24 2
Ac tivating functions du ring a call ...... 24 6
Calls with se veral participants .......... 24 6
Changing the function of a mobile
phone ............................................... 24 4
Connecting a mobile phone (Near
Field Communication (NFC)) ............ 24 5
Connecting a mobile phone (Pass‐
ke y) .................................................. 24 3
Connecting a mobile phone
(Secure Simple Pairing) .................... 24 3
Connecting a second mobile phone
(Secure Simple Pairing) .................... 24 4
Disconnecting a mobile phone ......... 24 4
Importing contacts ........................... 24 8
Importing contacts (o verview) .......... 247
Incoming call during an existing
call .................................................. .246
Information ....................................... 24 3
Inter changing mobile phones (two
phone mode) .................................... 24 4
Menu (on-board computer) ............... 182
Mobile phone voice recognition ........ 24 6
No tes ................................................ 24 3
Operating modes .............................. 24 2
Re ception and transmission vol‐
ume .................................................. 24 5
Ring tone volume .............................. .245
Switching mobile phones ................. 24 4
Switching mobile phones (Near
Field Communication (NFC)) ............ 24 5
Te lephone menu overview ................2 42
Te lephone operation ........................ .246
Tw o phone mode (function) .............. 24 4
Using Near Field Communication
(NFC) ................................................ 24 5
Vo ice commands (Voice Cont rol
Sy stem) ............................................ 189
Wi reless charging (mobile phone) ...... 82
Te lephony operating modes
Blue tooth ®
Te lephony ...................... .242
Te mp erature grade ............................... 319
Te xt messages
Vo ice commands (Voice Cont rol
Sy stem) ............................................ 19 3
Te xt messages
see Messages
Ti e-d owney es ...................................... .274
Time Manual time setting .......................... 210406
Index