fuel cap release MERCEDES-BENZ V-CLASS 2021 Owners Manual

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

one
that does not comply with the speci/cations of
th ese operating inst ructions.
* N
NO OTE
TE Damage caused byadditives in
Ad Blue ®
or by diluting AdBlue ® The
AdBlue ®
ex haust gas aTertreatment sys-
te m could be dest roye dby thefo llowing:
R additives in AdBlue ®
R diluting AdBlue ® #
Only use AdBlue ®
in acco rdance with
ISO 22241. #
Do not mix additives. #
Do not dilu teAd Blue ®
. *
N
NOOTE
TE Dama geand malfunctions caused
by impurities in AdBlue ® Impurities in
AdBlue ®
result in thefo llowing:
R higher emission values
R damage tothe catalytic con verter
R engine damage
R malfunctions in theAd Blue ®
ex haust gas
aTertreatment system #
Avoid impurities in AdBlue ®
. Ad
Blue ®
residue cr ystallises aTer some time and
stain the a.ected sur faces. Clean the dirty sur fa-
ces with water as soon as possible.
If yo u open theAd Blue ®
tank, small amounts of
ammonia vapour may be released. Do not inhale
any ammonia vapours that may be released. Fill
th eAd Blue ®
tank only in well-ventilated areas.
A
A dBlue
dBlue ®
®
consump
consump tion and
tion and/lling
/llingcapacity
capacity
F
F illing capacities
illing capacities
The tota l capacity of theAd Blue ®
tank may vary,
depending on theve hicle equipment.
Tot
Tot al capacity of A
al capacity of A dBlue
dBlue®
®
t
tank
ank V
V
ehicle Tot
ehicle Total capacity
al capacity
All model s1 1.5 litres, 24 litres or
25 litres A
A
dBlue
dBlue ®
®
consump
consump tion
tion
Like fuel consum ption, AdBlue ®
consu mption is
high lydependent upon driving style and operating
conditions. AdBlue ®
consu mption is usually within
a ra nge of 1 and 5% of the fuel consum ption. If necessar
y,Ad Blue ®
must be re/lled in acco rdance
with the inst ructions when there /ll message is dis-
pla yed in the inst rument cluster. This may also be
necessary between the scheduled maintenance.
Check theAd Blue ®
/ll le vel before making jour-
ne ys outside of Europe.
A
A dBlue
dBlue ®
®
r
rang
ang e and
e and /ll
/lllev
level
el
The AdBlue ®
/ll le vel and range can be displa yed
via the on-board computer. The AdBlue ®
range
sh ow n depends strongly on the driving style and
operating conditions. The actual range can there-
fo re deviate from thera nge cur rently displa yed in
th e on-board computer. The information given in
th e operator's manual in display messages rega rd-
ing there ser vequantity and the minimum top-up
qu antity when the fuel tank is em pty is also tobe
understood as guide values.
Display theAd Blue ®
range and le vel
( / page 184). Engine oil
Engine oil N
No ot
tes on engine oil
es on engine oil
Obser vethe no tes on operating 0uids
(/ page 271). *
N
NOOTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters other
th an those which meet the speci/cations
necessary forth e prescribed service
inter vals. #
Do not alter the engine oil or oil /lter in
order toachie velonger change inter vals
th an prescribed. #
Do not use additives. #
Have the engine oil changed aTer the
prescribed inter vals. Mercedes-Benz
recommends having the oil
ch anged at a quali/ed specialist workshop. Te
ch nical data
275
275

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Drive in a manner appropriate forth e cur rent le vel, but do not
ex ceed 80 km/h. #
Consult a quali/ed specialist workshop. Engine
Engine
Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
# See Owner's Manual *A
warning tone also sounds.
The bat tery is no longer being charge dfo r one of thefo llowing rea-
sons:
R defecti vealternator
R torn pol y-V belt
R malfunction in the electronics #
Stop theve hicle immediately in accordance with the tra1c condi-
tions and switch it o..
Do not continue driving. If you do, the engine may overheat. #
Secure theve hicle against rolling away. #
Consult a quali/ed specialist workshop.
! Clean the fuel filter *T
here is water in the fuel /lter. The water must be drained o.. #
Consult a quali/ed specialist workshop.
? Coolant Stop vehicle
Switch engine off *A
warning tone also sounds. The coolant is too hot. &
W WARNING
ARNING Risk of burns when opening the bonnet
If yo u open the bonnet in theev ent of an overheated engine or /re
in the engine compartment, 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 compartment, keep the
bonnet closed and call the /re service. &
W
WARNING
ARNING Risk of scalding from hot coolant
If yo u open the cap, you could be scalded. #
Letthe mo tor cool down before opening the cap. #
When opening the cap, wear pr otective glo ves and saf ety
glasses. #
Open the cap slo wlytorelease pressure. #
Stop theve hicle immediately in accordance with the tra1c condi-
tions and switch it o.. Display messages and
warning and indicator lamps
295
295