#Make surethat no engine oil is spilled
next tothefiller opening.
#Allow the engine tocool off and thor‐
oughly clean the engine oil from compo‐
nent parts before starting theve hicle.
* NO
TEEngine damage causedbyan
incor rect oil filter, incor rect oil or addi‐
tives
#Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forth e
service inter vals.
#Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an prescri bed.
#Do not use additives.
#Follow the instructions in the service
inter val display rega rding the oil
ch ange.
* NO
TEDama gecaused bytopping up too
much engine oil
To pping up too much engine oil can cause
damage tothe engine or the catalytic con‐
ve rter.
#Ha ve excess engine oil siphoned off at
a qu alified specialist workshop.
#Tu rn cap 1counter-clockwise and remo ve
it.
#Ad d engine oil.
#Replace cap 1and turn it clockwise as far
as it will go.
#Check the oil le vel again (→page 307).
Checking coolant le vel
&
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
&
WARNING Danger of burn s from hot
coolant
The engine cooling sy stem is pressurized,
particularly when the engine is warm. If you
308
Maintenance and care
openthe cap, you could bescalded byhot
coolant spr aying out.
#Let the mo tor cool down before opening
th e cap.
#When opening the cap, wearglove s and
pr otective eyew ear.
#Slowly turn the cap half a turn toallow
pressure toescape.
#Park theve hicle on a flat sur face.
#Check the coolant temp erature display in the
instrument clus ter.
The coolant temp erature must be below
15 8 °F (70 °C).
#Slowly turn cap 1counter-clockwise to
re lie ve ove rpressure.
#Continue turning cap 1counter-clockwise
and remo veit.
The coolant le vel is cor rect:
RIfth e engine is cold, up tomar ker bar 2
RIfth e engine is warm, up to0.6 in (1.5 cm)
ove r mar ker bar 2
#If necessar y,add coolant that has been tes‐
te d and appr ovedby Mercedes-Benz.
RFurther information on coolant (→page 376)
Re filling the windshield washer sy stem
&
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
&
WARNING Danger of burn s when open‐
ing the engine hood
If yo u open the engine hood when the engine
has overheated or during a fire inthe engine
compartment, you could come into contact
wit h hot gases or other escaping operating
fl uids.
#Before opening the engine hood, allow
th e engine tocool down.
#Intheeve nt of a fire inthe engine com‐
partment, keep the engine hood closed
and call thefire service.
Maintenance and care 309
&WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Wi ndshield washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem.
#Make sure that no windshield washer
concentrate spills out next tothefiller
opening.
#Re mo vecap 1bytheta b.
#Ad dwa sher fluid.
Cleaning and care
Informa tiononwashing theve hicle in a car
wa sh
&
WARNING Risk of accident due to
re duced braking ef fect af terwa shing the
ve hicle
The braking ef fect is reduced af terwa shing
th eve hicle.
#Afterth eve hicle has been washed,
brake carefully while paying attention to
th e traf fic conditions until the braking
ef fect has been ful lyrestored.
To avo id damage to yourvehicle when using a
car wash, ensure thefo llowing beforehand:
RDis tance Pilot DISTRONIC and the HOLD
function are switched off.
RThe 360° Camera or there ar view camera is
switch ed off.
RThe side windo wsand sliding sunro of are
comple tely closed .
310
Maintenance and care
apron and aface mas k.Immediate ly
ri nse electrolyte or acid splashes off
with clean water.Consult a docto r if
necessar y.
Wear saf etygl asses.
Ke ep children away.
Obser vethis Opera tor's Manual.
If yo udo not intend touse theve hicle over an
ex tended pe riod of time:
RAc tivate standby mode, or
RConnect the battery toa batte rycharge r
appr ovedby Mercedes-Benz, or
RConsult a qualified specialist workshop to
disconnect the batter y.
Starting assist ance andcharging the12 V
battery
Ve hicles with a lithium-ion battery
#When charging the battery and during start‐
ing assis tance, al ways use the jump-s tart
connection point in the engine compartment.
* NO
TEDama getothe battery from over‐
vo ltage
When charging using a batte rycharge r with‐
out a maximum charging voltage, the battery
or the on-board electronics may be damaged.
#Only use battery charge rs with a maxi‐
mum charging voltage of 14.4 V.
All other vehicles
#When charging the battery and during start‐
ing assis tance, al ways use the jump-s tart
connection point in the engine compartment. *
NO
TEDamaging the battery thro ugh
ove rvoltage
When charging using a batte rycharge r with‐
out a maximum charging voltage, the battery
or theve hicle electronics may be damaged.
#Only use battery charge rs with a maxi‐
mum charging voltage of 14.8 V.
&
WARNING Risk ofexplosion from hydro‐
ge nga s igniting
A battery generates hydrogen gas during the
ch arging process. If there is a short circuit or
spar ksstart toform ,th ere is a danger of the
hy drogen gas igniting.
#Make sure that the positive term inal of
th e connected battery does not come
into conta ct withvehicle parts.
#Ne ver place me tal objects or tools on a
batter y.
#When connecting and disconnecting the
batter y,yo u must observ eth e descri‐
bed order forth e battery clamps.
326
Breakdown assis tance
#When givingstarting assis tance, al ways
make sure that you only connect bat‐
te ry term inals with identical polarity.
#During starting assis tance, you must
observ eth e described order for con‐
necting and disconnecting the jumper
cables.
#Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running.
&
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture.
#Av oid fire , open flames, creating spar ks
and smoking.
#Make sure that there is suf ficient venti‐
lation du ring thech arging process and
during starting assis tance.
#Do not lean over a batter y.
Ifth e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen.
& WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, batte rygas may be released.
#Alw aysth aw a frozen batte ryout firs t
before charging it or per form ing start‐
ing assis tance.
* NO
TEShor tening the service life of the
battery bycharging the battery at low
te mp eratures
Charging the battery at very low temp era‐
tures may shor tenth e service life of the bat‐
te ry and ha vea negative ef fect on starting.
#Do not charge the battery at very low
te mp eratures.
The service life of a battery that has been
th awe d may be dramatically shor tened.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
All vehicles
* NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine
Nume rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel.
#Av oid numerous and extended attem pts
to start the engine.
Obser vethefo llowing points during starting
assis tance and when charging the battery:
ROnly use undamaged jumper cables/charg‐
ing cables with a suf ficient cross-section and
insula tedte rm inal clamps.
RNon- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jumper cable/charging cable
is connected tothe battery/jump-s tart con‐
nection point.
Breakdown assis tance 327
RThe jumper cable/charging cable must not
come into contact with any parts which may
movewhen the engine is running.
RAlw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
RKe ep away from fire and open flames.
RDo not lean overth e batter y.
RWhencharging: only use battery charge rs
te sted and appr oved byMercedes-Benz and
re ad the battery charge r's operating instruc‐
tions before charging the batter y.
Obser vethe additional following points during
st arting assis tance:
RSt arting assis tance may only be pr ovided
using batteries with a nominal voltage of 12
V.
RThe vehicles must not touch.
RGa soline engine: Onlyaccept starting assis‐
ta nce if the engine is cold and theex haust
sy stem has cooled down.
#Secure theve hicle byapplying the electric
parking brake.
#Au tomatic transmission: Shiftthe trans‐
mission toposition j.
#Make sure that the ignition and all electrical
consumers are switched off.
#Open the hood.
#Slide co ver1 of positive clamp 2onthe
jump-s tarting connection point in the direc‐
tion of the ar row.
#Connect positive clamp 2onyour vehicle to
th e positive pole of the donor battery using
th e jumper cable/charging cable. Alw ays
begin with positive clamp 2onyour ow n
ve hicle firs t.
#Du ring thest arting assist ance proce‐
dure: start the engine of the donor vehicle
and run at idle speed.
#Connect the negative pole of the donor bat‐
te ry and ground po int3 ofyour ow nve hicle
using the jumper cable/charging cable.
Begin with the donor battery firs t.
#Du ring starting assist ance:start the
engine of your ow nve hicle.
#During thech arging process: start the
ch arging process.
#During starting assist ance:letthe engines
ru nfo r se veral minutes.
#During starting assist ance:before discon‐
necting the jumper cable, switch on an elec‐
trical consumer on your ow nve hicle, e.g. the
re ar wind owheater or lighting.
328
Breakdown assis tance
Perm itted towing me thods
Bo th axles on thegr oundFront axle raisedRe ar axle raised
Ve hicles with manual transmission Yes, maximum 31miles (50 km) at
31 mp h (50 km/h) Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h) Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h)
Ve hicles with automatic transmis‐
sion Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h) No
Yes, if thesteering wheel is fixe d in
th e center position with a steering
wheel loc k.
4MATIC vehicles Yes, maximum 31miles (50 km) at
31 mp h (50 km/h) No
No
Towing wit h araised axle: towing should be
per form ed byato wing compan y.
Towing theve hicle with bo thaxles on the
gr ound
#Obser vethe no tes on the permitted towing
me thods (→page 330) (→page 329).
#Make sure that the battery is connected and
ch arge d.
When the battery is dischar ged:
RThe engine cann otbe star ted.
RThe elect ric park ing brake cannot be
re leased or applied.
RVe hicles with automatic transmission:
The au tomatic transmission cannot be shif‐
te dto position iorj.
330
Breakdown assis tance
Installingtheto wing eye
#Press the mark on co ver1 inwa rds and
re mo ve.
#Scr ew intheto wing eyeclockwise tothe
st op.
% Make sure that co ver1 engages in the
bumper when youre mo vetheto wing eye. *
NO
TEDama gedue toincor rect use of
th eto wing eye
When a towing eye is used toreco ver a vehi‐
cle, theve hicle may be damaged in the proc‐
ess.
#Only use theto wing eyeto to waw ay or
to w start theve hicle.
To w starting theve hicle (eme rgency engine
st art)
Ve hicles with automatic transmission
* NO
TEDama getothe automatic trans‐
mission due to towstarting
The automatic transmission may be damaged
in the process of tow starting vehicles with
automatic transmission.
#Ve hicles with automatic transmission
must not be tow star ted.
#Ve hicles with automatic transmission must
not be tow star ted.
Electrical fuses
Note s on electrical fuses
&
WARNING Risk of accident and injury
due to ov erloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher
amperage, the electric line could be overloa‐
ded.
This could result in a fire .
#Alw aysre place faulty fuses with speci‐
fi ed new fuses conta iningthe cor rect
amperage.
* NO
TEDama gecaused byincor rect fuses
Incor rect fuses may cause damage toelectri‐
cal components or sy stems.
#Only use Mercedes-Benz appr oved
fuses with the cor rect fuse rating.
Blown fuses must bereplaced with fuses of the
same rating, which you can recognize bythe
334
Breakdown assis tance