2021 MERCEDES-BENZ V-CLASS check engine light

R
Ifth e typical outline of a pedestrian cannot be
distinguished from the backg round.
R If a pedestrian is not de tected as such, e.g.
due tospecial clo thing or other objects.
R In bends with a nar row radius. A
A
ctiv
ctiv ating or deactiv
ating or deactiv ating A
ating Activ
ctive Br
e Br ak
ake Assist
e Assist On-board computer:
4 ò 5
Settings 5
Assistance
5 Active Brake Assist
% It isrecommended that Active Brake Assist is
alw ays leT activated. #
T
To activ
o activ at
ate/deactiv
e/deactiv at
ate:
e: press thea button.
The distance warning function and the autono-
mous braking function of Active Brake Assist
are deactivated or acti vated.
When the functions are deactivated, theæ
symbol appears in the assistance graphic in
th e inst rument cluster displa y.
The next time theve hicle is star ted, Ac tive Brake
Assist is automatically acti vated. F
F unction of A
unction of A dap
daptiv
tive Br
e Br ak
ake Lights
e Lights Ad
aptive brake lights warnfollowing tra1c in an
emer gency braking situation with thefo llowing sig-
nals:
R By 0ashing the brake lamps
R By activating the hazard warning lights
If th eve hicle is braked sharply from speeds abo ve
50 km/h, the brake lamps 0ash rapidl y.This pro-
vides tra1c tr avelling behind you with an even
more noticeable warning.
If th eve hicle is tr avelling at speeds of more than
70 km/h at the beginning of the brake application,
th e hazard warning lights switch on once theve hi-
cle is stationar y.When pulling away again, the haz-
ard warning lights switch o. automatically at
appr oximately 10 km/h.
Yo u can also switch o. the hazard warning lights
using the hazard warning button (/ page 108). Cr
Cr uise contr
uise contr ol and limit
ol and limit er
er F
F
unction of cr
unction of cr uise contr
uise control
ol
Cruise control accelerates and brakes theve hicle
automatically in order tomaintain a pr eviously
stored speed. If
yo u accelerate toove rtake, forex ample, the
stored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal aTer overtaking,
cruise cont rol will resume speed regulation back to
th e stored speed.
Yo u operate cruise control using the cruise control
le ve r.Yo u can store any speed abo ve30 km/h.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 152).
Syst
Syst em limits
em limits
Cruise cont rol may be unable tomaintain the
stored speed on uphill gradients. The stored speed
is resumed if the uphill gradient evens out and the
ve hicle's speed does not fall below 30 km/h.
On long and steep downhill gradients, you should
ch ange down toa lo werge ar in good time. Take
particular no teof this when driving a laden vehicle.
By doing so, you will make use of the engine's
braking e.ect. This will take some of the strain o.
th e brake system and pr event the brakes from
ov erheating and wearing tooqu ickl y.
If yo uch ange wheel size on your vehicle, check it
is assigned tothe cor rect wheel size category
(/ page 260). If the category is changed without
re coding the control units in theve hicle, the func-
tioning of cruise control may be impaired.
Do not use cruise control in thefo llowing situa-
tions:
R in tra1c situations where frequent speed
changes are requi red, e.g. in heavy tra1c or on
winding roads
R o.-road or on construction sites
R on slippery or slick roads, as the drive wheels
can lose traction when accelerating and the
ve hicle can then skid
R ifth ere is poor visibility
F
F unction of t unction of t he limit
he limiter
er
The limiter restricts the speed of theve hicle. To
adjust tothe set speed quickl y,the limiter applies
th e brakes automaticall y.
Yo u can limit the speed as follo ws:
R Variable: for a short-term or medium-term
re striction of the highest permissible speed,
e.g. in built-up areas
R Perm anent: for a long-term restriction of the
highest permissible speed, e.g. in winter tyre
mode Driving and parking
157 157

Ov
Ov
er
ervie
vie w of t
w of t he ins
he ins tr
trument clust
ument clust er
er Inst
rument cluster (e xample)
1 Speedome ter
2 Display
3 Rev counter
4 Coolant temp erature display
5 Fuel le vel
Speedom et
Speedom eter
er
In vehicles with Active Distance Assist DISTRONIC,
th ere are illuminated segments on the speedome-
te r dial.
These segments show you what speed range is
av ailable:
R Variable limi ter activated (/ page 158)
The segments light up from the start of the
scale tothe selected limit speed.
R Active Distance Assist DISTRONIC switched on
(/ page 161)
One or two segments light up in the sa ved
speed range.
R Active Distance Assist DISTRONIC de tects a
ve hicle in front.
The segments light up from the speed of the
ve hicle in front up tothe sa ved speed.
Yo u can show the speed as a digital speedome ter
on the display as well.
If yo uch ange your vehicle's wheel size, check its
assignment tothe wheel size group (/ page 260).
If th e assignment changes without recoding the
cont rol units in theve hicle, the speedome ter will
not display the speed accuratel y.The cur rent vehi-
cle speed may then be higher than the speed
shown bythe speedome ter. Driving and driving
saf ety systems may then be operationally impaired
or may de tect a malfunction and switch them-
sel ves o..
In some countries, an audible signal will sound
and/or a message will appear on the display when th
eve hicle reaches the maximum speed permitted
by law, e.g. at 120 km/h.
R
R e
ev count
v count er
er
* NO
NOTE
TEEngine damage due tomaximum
engine speed being exceeded If
th e maximum permissible engine speed is
ex ceeded, the engine may be damaged. #
Avoid driving in there d speed range
(danger zone). Outside t
Outside t
em
emper
per atur
atur e display
e display
Yo u should pay special attention toroad conditions
when temp eratures are around freezing point.
The outside temp erature is shown on the inst ru-
ment cluster display (/ page 183).
Changes in the outside temp erature will be dis-
pla yed aTer a short dela y.
Coolant t
Coolant t em
emper
per atur
atur e display
e display &
W
WARNING
ARNING Risk of burns when opening the
bonnet
If yo u open the bonnet in theev ent of an over-
heated engine or /re in the engine compart-
ment, thefo llowing situations 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 com-
partment, keep the bonnet closed and
call the /re service. The coolant
temp erature display is located within
th e inst rument cluster's rev counter.
During normal driving and if the coolant le vel is
cor rect, the display is permitted torise to120°C. Ov
Ov
er
ervie
vie w and oper
w and oper ation of t
ation of the on-boar
he on-boar d com-
d com-
put
put er
er &
W
WARNING
ARNING Risk of distraction due toinfor-
mation systems and communications
equipment
If yo u operate information systems and com-
munications equipment integ rated in theve hi-
cle when driving, you could be distracted from Instrument cluster and on-board computer
181 181

Example: cap and coolant
expansion reser voir
Chec
Chec king t
king t he coolant lev
he coolant lev el
el #
Slowly turn the cap 1ofthe coolant expan-
sion reser voir2 half a turn anti-clockwise and
allow overpressure toescape. #
Turn cap 1further and remo veit.
The coolant le vel is cor rect in thefo llowing cases:
R Uptomar ker bar 3when the engine is cold
R Ifth e engine is warm, up to1.5 cm over
mar ker bar 3
T
T op up t
op up t he coolant
he coolant
Only use coolant appr oved for Mercedes-Benz to
av oid damaging the engine cooling system. #
Referto the information on coolant
(/ page 277). #
Re/ll the coolant up tothe mar ker bar 3in
th e /ller opening of the coolant expansion res-
er vo ir2. #
Replace cap 1and tighten in a clockwise
direction. #
Start the engine. #
Set thete mp erature in theve hicle interior to
th e maximum output on the control panel of
th e climate control. #
ATer about /ve minutes, switch o. the engine
again and allow it tocool down. #
Check the coolant le vel again and top up the
coolant if necessar y. F
F
illing up t
illing up t he windscr
he windscr een w
een washer syst
asher syst em
em &
W
WARNING
ARNING Risk of /re and injury from
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly 0am-
mable. #
Avoid /re, naked 0ames, smoking and
th e creation of spar kswhen using wind-
screen washer concentrate. &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. *
N
NOOTE
TE Damage totheex terior lighting due
to unsuitable windscreen washer 0uid Unsuitable windscreen
washer 0uids may dam-
age the plastic sur face of theex terior lighting. #
Only use windscreen washer 0uids that
are also suitable for use on plastic sur fa-
ces, e.g. MB SummerFit or MB WinterFit. T
T
opping up t
opping up t he w
he washer
asher 0uid
0uid Wa
sher 0uid reser voir (e xamp le) #
Obser vethe no tes on windscreen washer 0uid
(/ page 277). #
Pull cap 1upwards bytheta b. #
Top up thewa sher 0uid. Main
tenance and ca re
229
229

Obser
vethefo llowing no tes:
R Recharge the battery more frequently in the
fo llowing cases:
- You predominantly drive short distances.
- You predominantly drive at low outside
te mp eratures.
- You lea vetheve hicle par kedfo r a lengt hy
period.
In order forth e batteries toachie vetheir maxi-
mum possible service life, they must alw ays be
su1ciently charge d.
R Consult a quali/ed specialist workshop if you
wish tolea veyour vehicle par ked up for long
periods.
R When you park theve hicle, remo vetheke y if
yo u do not requ ire any electrical consumers.
The vehicle will then use very little energy, thus
conserving battery po wer.
R Ifyo ur vehicle requ ires jump-starting, or if you
wish toprov ide jump-starting assistance to
ano ther vehicle, only use the jump-start con-
nection point in the engine compartment
(/ page 240).
Inst
Inst allation locations
allation locations
Yo ur vehicle may be equipped with thefo llowing
two batteries located in the seat base of theright-
hand front seat, depending on the equipment ver-
sion:
R Starter battery
R Support battery S
S
t
tar
ar ting assist
ting assist ance and c
ance and c har
harging t
ging t he 12 V batt
he 12 V batt ery
ery &
W
WARNING
ARNING Risk ofexplosion from a frozen
battery
A dischar ged battery may freeze at temp era-
tures slightly abo veor below freezing point.
During starting assistance or battery charging,
battery gas can be released. #
Always allow a battery tothaw before
ch arging it or per form ing starting assis-
ta nce. If
th ewa rning/indicator lamps do not light up in
th e inst rument cluster at temp eratures around or
below freezing, it is highly probable that the dis-
ch arge d battery has frozen. In
this case, obser vethefo llowing points:
R Do not give theve hicle starting assis tance or
ch arge the batter y.
R The service life of a bat tery that has been
th awe d may be reduced drasticall y.
R The starting beh aviour may de teriorate, partic-
ular lyat low temp eratures.
R It is recommended that you ha veath awe d bat-
te ry checked at a quali/ed specialist workshop. &
W
WARNING
ARNING Risk ofexplosion due toexplo-
sive mixture of gases
An explosive mixture of gases can escape from
th e battery during charging and starting assis-
ta nce. #
Fire, naked 0ames, smoking and creating
spar ksmust be avoided. #
Make sure there is adequate ventilation. #
Do not stand overth e batter y. &
W
WARNI NG
ARNI NGDanger of chemical burns from
th e battery acid
Battery acid is caustic. #
Avoid contact with the skin, eyes or
clo thing. #
Do not lean overth e batter y. #
Do not inhale battery gases. #
Keep children away from the batter y. #
Immediately rinse battery acid o. thor-
oughly with plenty of clean water and
seek medical attention immediatel y. S
S
t
tar
ar ting assist
ting assist ance
ance
* NO
NOTE
TEDamage caused bynumerous or
ex tended attem ptsto start the engine Numerous or
extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combusted fuel. #
Avoid numerous and extended attem pts
to start the engine. Do not use a
rapid charging device tostart the
ve hicle. If your vehicle's battery is dischar ged, the
engine can be jump-star ted from ano ther vehicle
or from a donor battery using jump leads. Forth is
purpose, theve hicle has a jump-start connection
point in the engine compartment. 240
240
Breakdown assistance

#
Start the engine of the donor vehicle and run it
at idling speed. #
Start theve hicle and let the engine runfo r a
while. #
Before disconnecting the jump leads, switch
on an electrical consumer in your ow nve hicle,
e.g. there ar wind owheater or the lighting. #
Disconnect the negative term inal clamp of the
jump lead from ea rth contact 4and then
from negative term inal 2ofthe donor bat-
te ry. #
Disconnect the positive term inal clamp of the
jump lead from positive term inal 5onthe
jump-start connection point, and then from
positive term inal 3ofthe donor batter y.
Contact pr otection co ver1 is automatically
re turned forw ards toits original position bythe
spring forc e and the jump-start connection
point is closed. #
Position the co ver on positive term inal 3of
th e donor batter y. #
Have the battery checked at a quali/ed spe-
cialist workshop.
Char
Char ging t
ging t he 12 V batt
he 12 V batt ery
ery
* NO
NOTE
TEDamage tothe electronics caused
by non-appro vedch arging devices Charging a /tted battery with a battery
charger
which has not been appr ovedby Mercedes-
Benz can damage the on-board electronics. #
Only use a battery charge r which has
been appr ovedby Mercedes-Benz and
which permits charging the battery when
it is /t tedintheve hicle. #
Only charge the battery using the jump-
start connection point. A battery
charge r specially adap tedfo r Mercedes-
Benz vehicles and tested and appro vedfor
Mercedes-Benz is available as an accessor y.
Fu rther information is available from any
Mercedes-Benz Se rvice Centre. Read the operat-
ing inst ructions foryo ur charge r before charging
th e batter y.
Re charge the battery more frequently if you use
th eve hicle mainly for short trips and/or drive at
low outside temp eratures. #
Connect the battery charge rto the positive ter-
minal and ear thcontact in the same order as when connecting
the donor battery in the
jump-starting procedu re.
% If a battery is not /tted and not in service, you
should charge itev ery thre e months. This
helps tocounteract self-discharging and pre-
ve nt damage tothe batter y.
12 V batt
12 V batt er
ery care
y care
* NO
NOTE
TEBattery dischar gedue toleakage
cur rents Dirty bat
tery term inal clamps and battery sur-
fa ces cause leakage cur rents. This can lead to
th e battery discharging. #
Keep the battery term inals and battery
sur faces clean and dr y. *
N
NO
OTE
TE Damage tothe battery housing due
to improper cleaning If
yo u use cleaning agents containing fuel,
th ese can damage the battery housing. #
Do not use cleaning agents containing
fuel. *
N NOOTE TE Damage tothe battery due toself-
dischar ge If dirt
gets into the battery cell, the self-dis-
ch arge ofthe battery is increased and the bat-
te ry can be damaged. #
Only clean the battery with the cell caps
scr ewe d in. Obser
vethefo llowing points on battery care: #
Regular lych eck the battery term inals and the
fa stening of the negative cable tothech assis
to ensure that they are /rmly seated. #
Lightly grease the undersides of the battery
te rm inal clamps with acid-resistant grease. #
Only clean the battery housing with commer-
cially available cleaning agents. Disconnecting and r
Disconnecting and r
emo
emoving t
ving t he st
he start
arter batt
er batt ery
ery &
W
WARNING
ARNING Risk ofexplosion due tohydro-
ge nga s igniting
If, when charging a batter y,there is a short cir-
cuit or spar ksstart toform ,th ere is a danger
of hydrogen gas igniting. 242
242
Breakdown assis
tance

Electr
Electr
omagne
omagne tic com
tic com patibility
patibility
Declaration of conformity..................... .19
Electr
Electr onicSt
onic Stability Pr
ability Pr ogr
ogram
am
see ESP ®
(Elect ronic Stability Prog ram)
Electr
Electr onics
onics................................................ 269
Emerg
Emerg ency
ency
Fire extinguisher................................. 235
Fi rs t-aid kit (soT-sided)....................... 235
Re moving thewa rning triangle............ 235
Saf etyve st.......................................... 235
Setting up thewa rning triangle............ 235
Emerg
Emerg ency br
ency br aking
aking
Electric parking brak e......................... 152
Emerg
Emerg ency call
ency call
see Mercedes-Benz emer gency call system
Eme rg
Emerg encykey
ency key
Locking a door...................................... 55
Unlocking a door................................... 55
Emerg
Emerg encyke
ency key element y element
Re moving/inserting............................. .52
Eng
Eng ag
agerev
e rev er
erse g
se g ear
ear.................................. 142
Eng
Eng aging dr
aging dr iv
ive position (aut
e position (aut omatic
omatic
tr
tr ansmission)
ansmission)............................................ 143
Eng
Eng aging neutr
aging neutr al (aut
al (automatic tr
omatic tr ansmis-
ansmis-
sion)
sion)......................................................... 142
Engine
Engine
ECO start/s top function.................... .139
Engine number....................................2 70
St arting assis tance............................. 240
Engine electr
Engine electr onics (not
onics (notes
es.......................... 269
Engine number
Engine number .......................................... 270
Engine oil
Engine oil
Additive.............................................. 275
Checking the oil le vel using the on-
board computer..........................2 25, 226
Checking the oil le vel with a dipstic k... 226
Fi lling capacity.................................... 276
To pping up.......................................... 227
Engine output
Engine output
Notes on changes................................. 24
Engine pr
Engine pr e-heating
e-heating
see Auxiliary heating
En
En vir
vironment
onment al prot
al pr otection
ection
No tes................................................... .16
Ta ke -back of end-of-life vehicles............ 16
ERA
ERA -GL
-GLON
ONASS tASS t es
est mode
t mode
St arting/ending................................. .238
ESC (Electr
ESC (Electr onicSt
onic Stability Contr
ability Contr ol)
ol)
see ESP ®
(Elect ronic Stability Prog ram) ESP
ESP
®
®
Crosswind Assis t................................. 154
Tr ailer stabilisatio n.............................. 155
ESP
ESP ®
®
(Electr
(Electronic St
onic Stability Pr
ability Pr ogr
ogram)
am)
Ac tivating/deactivating (on-board
computer)........................................... 154
Fu nction/no tes................................... 153
Switching on/o. (button)................... .154
Ext Ext er
erior lighting
ior lighting
Care...................................................2 32
Ext
Ext er
erior lighting
ior lighting
see Lights F
F
F
F atigue det
atigue det ection
ection
see ATTENTION ASSIST
F
F ault messa ge
ault message
see Displ aymessage
F F illing up t illing up t he windscr
he windscr een w
een w ashing sy
ashing sy s-
s-
t
t em
em ........................................................... 229
F
F ir
ir e e
e e xtinguisher
xtinguisher ....................................... 235
F
F irs
irst-aid kit t-aid kit (soT-sided)
(soT-sided) ............................. 235
Flat tyre
Flat tyre Changing a wheel................................ 261
Notes................................................ .238
F
F og light (e og light (e xt
xtended r
ended r ang
ange)
e)......................... 110
F
F oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s.............. 152
F
F olding t
olding t able
able
Fi tting/removing................................. 100
Moving............................................... 100
Using.................................................. 102
F F or
or eign tr
eign tr ip
ip
Symmetrical dipped bea m................... 107
Fr
Fr ee
ee soTw
soTw are
are..............................................28
Fr
Fr eq
eq uencies
uencies
Mobile phone...................................... 269
Tw o-w ayradio.................................... .269
Fr Fr ont airbag (dr
ont airbag (dr iv
iver
er , co-dr
, co-dr iv
iver)
er) .................... .33
Fr
Fr ont seats
ont seats
Ro tating................................................ 76
Fr Fr ont wheel ar ch
ont wheel ar ch
Fi tting/removing the co ver.................. 114
Wi ng................................................... 114
F
F uel uel
Additives............................................. 272
Diesel................................................ .273
E10....................................................2 72
Flexible fuel vehicles........................... 272 Index
319
319