must ha
vethe cor rect dimensions and
th e tire must be the cor rect type. Do not
exceed a maximum speed of 50 mph
(80 km/h) if a spare wheel of a dif fere nt size is
ins talled. &
WARNING Risk of accident from dam‐
aged spa rewheel with Super Sin gle tires
Ve hicles with Super Single tires
The tire of the spare wheel exposed toabo ve-
ave rage loads af ter being ins talled on there ar
axle. If youexc eed the maximum speed or the
maximum dis tance, or ins tallth e spare wheel
again, the tire of the spare wheel may be
damaged. The tire damage may not be visible
and not de tectable.
A damaged tire may cause a loss of tire pres‐
sure. This could cause youto lose control of
th eve hicle. #
Only use the spare wheel if it has not
ye t been ins talled on there ar axle with
th e cur rent tires. #
Ifth e spare wheel had been ins talled on
th ere ar axle, ha vethe tire of the spare
wheel replaced af terch anging the
wheel again, ir respective of the dis‐
ta nce. #
For saf etyre asons, when changing a tire
ensure that only the tire valve type
appr ovedfo rth e tires is used. *
NO
TEDama getothe transmission Ve
hicles with Super Single tires: whenyou
ins tallth e spare wheel on there ar axle, the
transmission may be dama gedby the dif fer‐
ent rotational speeds of the wheels. #
When the spare wheel is ins talled on the
re ar axle, obse rveth e maximum speed
of 34 mph (55 km/h) and the maximum
driving dis tance of 62 miles (100 km). %
The spa
rewheel can be used without restric‐
tions on the front axle of a vehicle with Super
Single tires.
Re gular lych eck that the spare wheel is secured
and has the specified tire pressure
(/ page 234). Re
gularly check thefo llowing, particularly prior to
long trips:
R the tire pressure of the spare wheel (if neces‐
sar y,adjust the tire pressure).
R thefast enings of the spare wheel brac ket.
Re place the tires af ter six years at the latest,
re ga rdless of wear. This also applies tothe spare
wheel.
% If
yo u ha veinstalled a spare wheel, the tire
pressure monitoring sy stem will not function
fo rth is wheel. The spare wheel is not equip‐
ped with a sensor forth e tire pressure moni‐
to ring sy stem. Installing/removing
the spa rewheel Ve
hicles with rear wheel drive: removing the
spare wheel (Cargo Van/Passenger Van) Bolt co
vers forth e saf ety hoo ks(exa mp le: Cargo
Va n) #
Open there ar-end doors. 256
Wheels and tires
#
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 exhaust gas af tertre atment sy stem must be
operated in conjunction with DEF if it is tofunc‐
tion 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. You will then probably no
longer be permitted tooperate theve hicle on
public roads.
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 263). *
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 Te
ch nical da ta267
&
WARNING ‑ Risk of fire and injury from
antifreeze
If antifreeze comes into con tact wi thhot com‐
ponent parts in the engine compartment, it
may ignite. #
Allow the engine tocool down before
adding antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean off any antifreeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction. Information on coolant is
available at thefo llow‐
ing locations:
R inthe MB Specifications for operating fluids
31 0.1
- at http://be vo.mercedes-benz.com
- inthe BeVo app
R at a qualified specialist workshop
* NO
TEOverheating at high outside tem‐
peratures If an inapp
ropriate coolant is used, the engine
cooling sy stem is not suf ficiently pr otected
against overheating and cor rosion at high out‐
side temp eratures. #
Always use a coolant appr ovedby
Mercedes-Benz. #
Obser vethe instructions in the MB
Specifications for operating fluids3 10.1 . *
NO
TEPaint wo rkdamage due tocoolant #
Do not spill coolant on painted sur faces. Ha
ve the coolant regularly replaced at a qualified
specialist workshop.
No tethe proportion of anti-cor rosion agent/anti‐
freeze in the engine cooling sy stem within thefo l‐
lowing temp erature ranges:
R Atleast 50% (antifreeze pr otection up to
about -35 °F (-37 °C)) R
Maximum 55% (antifreeze pr otection up to
-49 °F (-45 °C))
Coolant capacities
Engine cooling sy stem Engine
Coolant
M2 74 approx. 3.0 gal
(1 1. 5 liters)
OM642 approx. 2.6 gal
(10 liters)
OM65 1a pprox. 2.5 gal
(9.5 liters) Wi
ndshield washer fluid Note
s on windshield washer fluid
Obser vethe no tes on operating fluids
(/ page 263). &
WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Wi ndshield washer concentrate is highly flam‐
mable. It could ignite if it comes into con tact
wi th hot engine component parts or the
ex haust sy stem. #
Make sure that no windshield washer
concentrate spills out next tothefiller
opening. *
NO
TEDama getotheex terior lighting
due tounsuitable windshield washer fluid Uns
uitable windshield washer fluid may dam‐
age the plastic sur face of theex terior lighting. #
Only use windshield washer fluid which
is also suitable for use on plast ic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit. *
NO
TEBlocked spr aynozzles caused by
mixing windshield washer fluids #
Do not mix MB SummerFit and MB Win‐
te rFit with other windshield washer flu‐
ids. Do not use distilled or de-ionized
water.Other‐
wise, the le vel sensor may give a false reading. 270
Tech nical da ta
Display messages
Possible causes/consequences and 0050 0050Solutions #
Stop in a safe location immediately. Do not continue driving. #
Consult a qualified specialist workshop. #
Do not add brake fluid.
Caution Brakes Overhea-
ted Drive Carefully *I
fth e all-wheel drive has been switched on, the brake sy stem can
ove rheat during extreme off-road use. #
Decele rate or stop and let the brake sy stem cool down.
Active Brake Assist Func-
tions Limited See Opera-
tor's Manual *A
ctive Brake Assi stis malfunctioning. #
Visit a qualified specialist workshop.
Active Brake Assist Func-
tions Currently Limited
See Operator's Manual *A
ctive Brake Assi stistemp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page139). #
Continue driving.
When the ambient conditions are within the sy stem limits, the
sy stem will be available again. #
Ifth e display message does not go out, stop in a safe location
and re-sta rt the engine.
Radar Sensors Dirty See
Operator's Manual *
The radar sensor sy stem is malfunctioning. Possible causes:
R dirt on the sensors
R heavy precipitation
R extended country drives wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf ety sy stems may be malfunctioning
or temp orarily una vailable.
When the causes ha vebeen eliminated, the driving sy stems and
driving saf ety sy stems will be available again.
If th e display message does not disappear, proceed as follo ws: #
Stop in accordance with the tra ffic conditions. #
Clean all sensors (/ page212). #
Re-sta rt the engine.
SOS NOT READY *T
he emergency call sy stem is not available.
Po ssible causes forth is include:
R The ignition is switched off
R The emer gency call sy stem is malfunctioning. #
Switch on the ignition.
If an emer gency call is una vailable, a message tothis ef fect will
appear on the multifunction display of the instrument clus ter. #
Visit a qualified specialist workshop.
% Yo
u can find more information on there gional availability of the
emer gency call sy stem at: http://www.mercedes-benz.com/
connect_ecall 280
Display messages and warning and indicator lamps
Display messages
Possible causes/consequences and 0050 0050Solutions Currently Unavailable
Radar Sensors Dirty
*
The radar sensor sy stem is malfunctioning. Possible causes:
R dirt on the sensors
R heavy precipitation
R extended country drives wi thout other traf fic, e.g. in the desert
The following sy stems may be af fected:
R Active Dis tance Assi stDISTRONIC (/ page 143)
R Blind Spot Assist(/ page152)
R Active Brake Assi st (/ page 139)
Driving sy stems and driving saf ety sy stems may be malfunctioning
or temp orarily una vailable.
When the causes ha vebeen eliminated, the driving sy stems and
driving saf ety sy stems will be available again.
If th e display message does not disappear: #
Stop in a safe location. #
Clean all sensors (/ page212). #
Re-sta rt the engine. #
If necessar y,visit a qualified specialist workshop.
Active Distance Assist
Now Available *T
heActive Dis tance Assi stDISTRONIC is operational again and can
be acti vated (/ page144).
00D9 Off *T
he HOLD function has been deactivated because theve hicle is slip‐
ping or an activation condition has not been met. #
Re-acti vate the HOLD function later on or check the HOLD func‐
tion's activation conditions (/ page145).
Blind Spot Assist Inoper-
ative *B
lind Spot Assist is malfunctioning (/ page152). #
Visit a qualified specialist workshop.
Blind Spot Assist Trailer
Not Monitored *W
hen you es tablish an electrical connection with the trailer, Blind
Spot Assist will remain available but the area beside the trailer will
not be monitored. The function of Blind Spot Assist may be restric‐
te d as a result (/ page152). #
Press the left-hand Touch Control and ackn owledge the display
message.
Blind Spot Assist Cur-
rently Unavailable See
Operator's Manual *B
lind Spot Assist is temp orarily una vailable (/ page152).
The sy stem limits ha vebeen reached (/ page152). #
Continue driving.
When the causes ha vebeen eliminated, the sy stem will be avail‐
able again.
or #
Ifth e display message does not go out, stop in a safe location
and re-sta rt the engine. #
If necessar y,clean there ar bumper. If the bumper is very dirty,
th e sensors in the bumper may malfunction.
*T he camera view is reduced (/ page155). 284
Displaymessa ges and warning and indicator lamps
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
Display messages
Possible causes/consequences and 0050 0050Solutions
XXX See Operator's Man-
ual The
exhaust gas af tertre atment sy stem is defective or an emissions-
re leva nt malfunction has occu rred. This malfunction or defect can
damage theex haust gas af tertre atment sy stem.
Af terth e message appears forth efirs t time, the engine can only be
st ar ted ano ther 10 times. The number of remaining engine starts XX
(10 to1) is shown in the message everytime the engine is star ted. #
Visit a qualified specialist workshop immediately.
0099 Additive System Fault
Emergency Op.: XXX
mph See Operator's
Manual *
In addition, theye llow 00B9 Check Engine warning lamp on the
instrument clus ter lights up and a warning tone sounds.
Yo u can only drive theve hicle at a maximum speed of 5 mph
(8 km/h). #
Visit a qualified specialist workshop immediately. Ti
res Display messages
Possible causes/consequences and 0050 0050Solutions
Tire Pressure Monitor
Inoperative No Wheel
Sensors *T
he ins talled wheels do not ha vesuitable tire pressure sensors. The
tire pressure monitor has been switched off. #
Install wheels with suitable tire pressure sensors.
0077
Tire Press. Sen. Missing *T
he tire pressure sensor signal is missing from one or more tires.
No pressure value is displa yedfo rth e tire in question. #
Have thefa ulty tire pressure sensor replaced at a qualified spe‐
cialist workshop.
Tire Press. Monitor Cur-
rently Unavailable *T
here is inter fere nce from a po werful source of radio wav es As a
re sult, no signals from the tire pressure sensors are received. The
tire pressure monitor is temp orarily una vailable. #
Continue driving.
As soon as the cause has been eliminated, the tire pressure
monitor automatically switches on.
0077 Warning Tire Malfunction *T
he pressure in one or more tires suddenly falls. The wheel position
is shown. &
WARNING Risk of an accident from driving wi thaflat tire
Flat tires are dangerous in thefo llowing ways:
R The tires can overheat and cause a fire.
R The driving characteristics, as well as steering and braking,
may be greatly impaired.
Yo u could then lose cont rol of theve hicle. #
Do not drive with a flat tire. #
Obse rveth e no tes on flat tires. In
fo rm ation about flat tires (/ page218). #
Stop theve hicle in accordance with the tra ffic conditions. 290
Display messages and warning and indicator lamps
Display messages
Possible causes/consequences and 0050 0050Solutions
Adaptive Highbeam
Assist Currently Unavail-
able See Operator's Man-
ual *A
daptive Highbeam Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (/ page81). #
Continue driving.
When the causes ha vebeen eliminated, the sy stem will be avail‐
able again. The display message Adaptive Highbeam Assist Now
Available appears.
Adaptive Highbeam
Assist Inoperative *A
daptive Highbeam Assist is malfunctioning. #
Visit a qualified specialist workshop.
0049
Switch On Headlamps *Y
ou are driving without a low beam. #
Turn the light switch toposition 0058.
or #
Turn the light switch tothe0058 position.
0049
Switch Off Lights *Y
ou are leaving theve hicle and the light is still switched on. #
Turn the light switch toposition 0058.
0049
Auto Lamp Function
Inoperative *T
he light sensor is malfunctioning. #
Visit a qualified specialist workshop.
0049
Malfunction See Opera-
tor’s Manual *T
heexterior lighting is malfunctioning. #
Visit a qualified specialist workshop.
Ve hicles with trailer hitch: a fuse may ha veblown. #
Stop in accordance with the tra ffic conditions. #
Check the fuses, and replace them if necessary(/ page 228).
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
warning and indicator lamps When
the ignition is switched on, many sy stems
per form a self-test. Some warning and indicator
lamps may switch on or flash temp orarily during
th is time. This behavior is no cause for alarm.
These warning and indicator lamps only signal a
malfunction if they light up or flash, once the
engine has been star ted or theve hicle is in oper‐
ation. Wa
rning and indicator lamps:
0058 Low beam (/
page 79)
0060 Pa
rking light (/ page 79)
0057 High beam (/
page 80)
003E003D Tu
rn signal (/ page 80)
005E Re
ar fog light (/ page 79)
00E9 Saf
ety belt not fastened
(/ page 302)
0027 and
004D USA: Brakes (red) (/
page 297)296
Display messages and warning and indicator lamps