compressor from the stowage well under-
neath the trunk floor (Ypage 367).
XAffix part:of the TIREFIT sticker to the
instrument cluster within the driver's field of
vision.
XAffix part ;of the TIREFIT sticker near the
valve on the wheel with the defective tire.
XPull connector ?with the cable and hose A
out of the tire inflation compressor housing.
XScrew hose Aonto flange Bof tire sealant
bottle :.
XPlace tire sealant bottle :head downwards
into recess ;of the tire inflation compres-
sor.
XRemove the cap from valve Con the faulty
tire.
XScrew filler hose Donto valve C.
XInsert connector ?into a 12 V socket
(Ypage 336) in your vehicle.
XTurn the SmartKey to position 1in the ignition
lock (Ypage 162).
XPress on and off switch =on the tire inflation
compressor to I.
The tire inflation compressor is switched on.
The tire is inflated. First, tire sealant is pumped into the tire. The
pressure can briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the tire inflation com-
pressor during this phase.
XLet the tire inflation compressor run for a
maximum of five minutes. The tire should then
have attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
If a pressure of 180 kPa (1.8 bar/26 psi) has
been attained after five minutes, see "Tire pres-
sure reached" (
Ypage 371).
If a tire pressure of 180 kPa (1.8 bar/26 psi) has
not been attained after five minutes, see "Tire
pressure not reached" (
Ypage 370).
If tire sealant has escaped, clean it off affected
areas as quickly as possible. Use plain water if
possible.
If your clothes are soiled with tire sealant, have
them cleaned with perchloroethylene at a dry
cleaner as soon as possible.
Tire pressure not reached
If a pressure of 180 kPa (1.8 bar/26 psi) has not
been attained after five minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of the
faulty tire.
Note that tire sealant may escape when you
unscrew the filler hose.
XVery slowly drive forwards or reverse approx- imately 30 ft (10 m).
XPump up the tire again.
After a maximum of five minutes the tire pres-sure must be at least 180 kPa (1.8 bar/
26 psi).
GWARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tire
pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
370Flat tire
Breakdown assistance
Battery (vehicle)
12 V battery – important safety notes
PLUG-IN HYBRID vehicles are equipped with a
12 V battery and a high-voltage battery. The fol-
lowing notes refer to the 12 V battery. Notes on
the high-voltage battery can be obtained in the
"High-voltage battery – important safety notes"
section (
Ypage 374).
Special tools and expert knowledge are required
when working on the battery, e.g. removal and
installation. You should therefore have all work
involving the battery carried out at a qualified
specialist workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This can
lead to function restrictions applying to
safety-relevant systems, e.g the lighting sys-
tem, the ABS (anti-lock braking system) or the
ESP
®(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steering maneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci-
dent, contact a qualified specialist workshop
immediately. Do not drive any further. You
should have all work involving the battery car- ried out at a qualified specialist workshop.
For further information about ABS and ESP
®,
see (Ypage 68) and (Ypage 73).
All vehicles except Mercedes-AMG vehicles:
GWARNING
Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixture forms when
charging the battery as well as when jump-start-
ing.
Always make sure that neither you nor the bat-
tery is electrostatically charged. A build-up of
electrostatic charge can be caused, for exam-
ple:
Rby wearing clothing made from synthetic
fibers
Rdue to friction between clothing and seats
Rif you push or pull the battery across the car-
pet or other synthetic materials
Rif you wipe the battery with a cloth
GWARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
372Battery (vehicle)
Breakdo wn assis tance
Remove theSmartKey if you park th evehicl e
and do no trequire any electrical consumers.
The vehicl ewill then use ver ylittl eenergy, thus
conserving battery power .
PLUG-IN HYBRID vehicles: if thebattery
charge is sufficient, th ehigh-voltage battery can
also suppl yth e12 Vbattery. This only happens
if th econdition of charge of th e12 Vbattery
require sthis, e.g. after usin gelectrical consum-
ers for an extended period wit hth eengin e
switched off .As th eon-board voltag eis contin-
uously monitore dthis can also be performed
when th eengin eis switched off .The condition of
charge of th e12 Vbattery and th eon-board
voltag eare thereby kept stable for alonger
period.
High-voltage battery – important
safety notes
Only PLUG-I NHYBRID vehicles are equipped
wit h a high-voltage battery.
GDANGER
The vehicle's high-voltage electrical system is under high voltage. If you modify component s
in th evehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The component sin th evehi-
cle's high-voltage electrical system may be
damaged in an accident, althoug hth edamag e
is no tvisible. There is aris kof fatal injury.
Followin gan accident, do no ttouch any high -
voltag ecomponent sand never modify th e
vehicle's high-voltage electrical system. Hav e
th evehicl etowed away after an acciden tand
th evehicle's high-voltage electrical system
checke dby aqualified specialist workshop.
GWARNIN G
In th eevent of avehicl efire, th einternal pres-
sur eof th ehigh-voltage battery can exceed a
critical value .In this cas eflammabl egas
escapes throug h aventilation valv eon th e
underbody. The gas can ignite. There is aris k
of injury.
Leav eth edanger zone immediately. Secur e
th edanger area at asuitable distance, whils t
observing legal requirements .
GWARNING
If th ehousing of th ehigh-voltage battery has
been damaged, electrolyt eand gase smay
leak out .These are poisonous and caustic.
There is aris kof injury.
Avoid contact wit hskin, eyes or clothing .
Immediately rinse electrolyt esplashes off
wit hwater and seek medical attention
straight away.
!Exhaustive discharge caused by th evehicl e
standing idle for lengthy periods can damag e
th ehigh-voltage battery. If th evehicl eis idle
for lengthy periods leav eth ehigh-voltage bat -
tery connecte dto acharging station .
Consult an authorize dMercedes-Benz Cente rif
you wish to leav eyour vehicl eparked for alon g
period of time.
Charging the 12 V battery
Mercedes-AM Gvehicles:
!Only use battery chargers wit h amaximum
charging voltag eof 14.4 V.
All other vehicles:
GWARNIN G
During charging and jump-starting ,explosive
gase scan escape from th ebattery. There is a
ris kof an explosion .
Particularly avoi dfire, open flames, creating
sparks and smoking. Ensur ethere is sufficien t
ventilation while charging and jump-starting .
Do no tlean ove r abattery.
GWARNIN G
Battery acid is caustic. There is aris kof injury.
Avoid contact wit hskin, eyes or clothing .Do
no tinhale any battery gases. Do no tlean ove r
th ebattery. Kee pchildren away from batter-
ies. Wash away battery acid immediately wit h
plenty of clean water and seek medical atten -
tion .
GWARNIN G
A discharged battery can freez eat tempera-
tures belo wfreezing point. When jump-start -
374Battery (vehicle)
Breakdown assistance
ing the vehicle or charging the battery, gasescan escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
!Only use battery chargers with a maximum
charging voltage of 14.8 V.
All vehicles:
!Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (
Ypage 376).
XOpen the hood.
XConnect the battery charger to the positive
terminal and ground point in the same order
as when connecting the donor battery in the
jump-starting procedure (
Ypage 376).
Keep away from fire and open flames. Do not
lean over a battery. Never charge the battery if it
is still installed in the vehicle, unless you use a
battery charger which has been tested and
approved by Mercedes-Benz. A battery charger
unit specially adapted for Mercedes-Benz vehi-
cles and tested and approved by Mercedes-
Benz is available as an accessory. It permits the
charging of the battery in its installed position.
Contact an authorized Mercedes-Benz Center
for further information and availability. Read the
battery charger's operating instructions before
charging the battery.
All vehicles except Mercedes-AMG vehicles:
if the indicator/warning lamps in the instrument
cluster do not light up at low temperatures, it is
very likely that the discharged battery has fro-
zen. In this case you may neither jump-start the
vehicle nor charge the battery. The service life of
a thawed-out battery may be shorter. The start-
ing characteristics can be impaired, particularly
at low temperatures. Have the thawed- out bat
-
tery checked at a qualified specialist workshop.
Mercedes-AMG vehicles: at low temperatures,
do not charge a battery which has been removed
using a battery charger. Allow the battery to
warm up gently first, if necessary. Otherwise,
the service life can be shortened and the start-
ing characteristics impaired, especially at low
temperatures.
PLUG-IN HYBRID vehicles: if the battery
charge is sufficient, the high-voltage battery can
also supply the 12 V battery. This only happens if the condition of charge of the 12 V battery
requires this, e.g. after using electrical consum-
ers for an extended period with the engine
switched off. As the on-board voltage is contin-
uously monitored this can also be performed
when the engine is switched off. The condition of
charge of the 12 V battery and the on-board
voltage are thereby kept stable for a longer
period.
Battery (vehicle)375
Breakdown assistance
Z
Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from a second battery using jumper cables.
Observe the following points:
RThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicle using a second battery or a jump-starting device.
RYou may only jump-start the vehicle when the engine and exhaust system are cold.
RAll vehicles except Mercedes-AMG vehicles: do not start the engine if the battery is frozen. Let
the battery thaw first.
ROnly jump-start from batteries with a 12 V voltage rating.
ROnly use jumper cables which have a sufficient cross-section and insulated terminal clamps.
RIf the battery is fully discharged, leave the battery that is being used to jump-start connected for
a few minutes before attempting to start. This charges the battery slightly.
RMake sure that the two vehicles do not touch.
Make sure that:
Rthe jumper cables are not damaged.
Rwhen the jumper cables are connected to the battery, uninsulated sections of the terminal clamp
do not come into contact with other metal sections.
Rthe jumper cables cannot come into contact with parts which can move when the engine is
running, such as the V-belt pulley or the fan.
XSecure the vehicle by applying the electric parking brake.
XShift the transmission to position P.
XMake sure that the ignition is switched off. All indicator lamps in the instrument cluster must be
off. When using the SmartKey, turn the SmartKey to position 0in the ignition lock and remove it
(
Ypage 162).
XSwitch off all electrical consumers, e.g. rear window defroster, lighting, etc.
XOpen the hood.
Example: ground point cover
XTurn fasteners :one Õturn and remove.
XRemove the cover while pressing down on cap ;of the washer fluid reservoir.
Jump-starting377
Breakdown assistance
Z
Position numberDidentifies the charged battery of the other vehicle or an equivalent jump-starting
device.
XSlide cover Cof positive terminal =in the direction of the arrow.
XConnect positive terminal =on your vehicle to positive terminal ?of donor battery Dusing the
jumper cable. Always begin with positive terminal =on your own vehicle first.
XStart the engine of the donor vehicle and run it at idling speed.
XConnect negative terminal Aof donor battery Dto ground point Bof your vehicle using the
jumper cable, connecting the jumper cable to donor battery Dfirst.
XStart the engine.
XBefore disconnecting the jumper cables, let the engine run for several minutes.
XFirst, remove the jumper cables from ground point Band negative terminal A, then from pos-
itive clamp =and positive terminal ?. Begin each time at the contacts on your own vehicle first.
XAfter removing the jumper cables, close cover Cof positive terminal =.
XReplace the earth point cover. Make sure all mountings for the fasteners are positioned precisely
beneath the corresponding recesses in the cover.
XPress fasteners:into the mountings. Turn the fasteners by Õof a turn to engage.
XHave the battery checked at a qualified specialist workshop.
PLUG-IN HYBRID vehicles: if your vehicle has been jump-started, it may not be possible to use the
electric drive for approximately 30 minutes.
Jump-starting is not considered to be a normal operating condition.
iJumper cables and further information regarding jump-starting can be obtained at any qualified
specialist workshop.
378Jump-starting
Breakdown assistance
PLUG-IN HYBRID vehicles may not be towed
away but must instead be transported, if:
Rthe multifunction display is not working or
Rtheá Towing Not Permitted SeeOperator'sManualmessage appears in the
multifunction display.
If the vehicle is in a dangerous area, it can be
towed out of that area with both axles on the
ground. In this case, the towing distance must
not be greater than 165 ft (50 m)and must not
exceed a towing speed of 6 mph (10 km/h). For
longer distances, have the vehicle loaded and
transported.
Installing/removing the towing eye
Installing the towing eye
The brackets for the screw-in towing eye are
located in the bumpers. They are at the rear and
at the front, under covers :.
XRemove the towing eye from the vehicle tool
kit/stowage tray (Ypage 367).
XPress the mark on cover:inwards in the
direction of the arrow.
XRemove cover :from the opening.
XScrew in the towing eye clockwise as far as it
will go and tighten it.
Removing the towing eye
XUnscrew and remove the towing eye.
XAttach cover :to the bumper and press until
it engages.
XPlace the towing eye in the vehicle tool kit/
stowage tray.
Towing a vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(
Ypage 379).
The automatic transmission automatically shifts
to position Pwhen you open the driver's or front-
passenger door or when you remove the Smart-
Key from the ignition lock.
In order to ensure that the automatic transmis-
sion stays in position Nwhen towing the vehicle,
you must observe the following points:
XYou must use the SmartKey instead of the
Start/Stop button (Ypage 162).
XMake sure that the vehicle is stationary and
that the key is in position 0in the ignition lock.
XTurn the SmartKey to position 2in the ignition
lock.
XDepress and hold the brake pedal.
XShift the automatic transmission to position
N .
XRelease the brake pedal.
XRelease the electric parking brake.
XLeave the SmartKey in position 2in the igni-
tion lock.
XSwitch on the hazard warning lamps
(Ypage 132).
In order to signal a change of direction when
towing the vehicle with the hazard warning
lamps switched on, use the combination switch
as usual. In this case, only the indicator lamps
for the direction of travel flash. After resetting
the combination switch, the hazard warning
lamp starts f
lashing again.
380Towing and tow-starting
Breakdown assistance
Transporting the vehicle
PLUG-IN HYBRID vehicles
Transportation of the vehicle should only be car-
ried out by professional recovery companies.
4MATIC vehicles/vehicles with auto-
matic transmission
!When the vehicle is loaded for transport, the
front and rear axles must be stationary and on
the same transportation vehicle. Positioning
over the connection point of the transport
vehicle is not permitted. The drive train may
otherwise be damaged.
All vehicles
!You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise, the
vehicle could be damaged.
The towing eye can be used to pull the vehicle
onto a trailer or transporter for transporting pur-
poses.
XTurn the SmartKey to position 2in the ignition
lock.
XShift the automatic transmission to position
N.
As soon as the vehicle has been loaded:
XPrevent the vehicle from rolling away by
applying the electric parking brake.
XShift the automatic transmission to posi-
tion P.
XTurn the SmartKey to position 0in the ignition
lock and remove it.
XSecure the vehicle.
Notes on 4MATIC vehicles
!
Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as
doing so will damage the transmission.
Vehicles with 4MATIC may either be towed away with both axles on the ground or be loaded up
and transported.
If the vehicle's transmission, front, or rear axle is
damaged, have the vehicle transported on a
truck or trailer.
In the event of damage to the electrical sys-
tem: if the battery is defective, the automatic
transmission will be locked in position P. To shift
the automatic transmission to position N, you
must provide power to the vehicle's electrical
system in the same way as when jump-starting
(
Ypage 376).
Have the vehicle transported on a transporter or
trailer.
Tow-starting (emergency engine
starting)
!
Vehicles with automatic transmission must
not be tow-started. You could otherwise dam-
age the automatic transmission.
iInformation on "Jump-starting"
(Ypage 376).
Fuses
Important safety notes
GWARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper- age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the
color and value. The fuse ratings are listed in the
fuse allocation chart.
The fuse allocation chart is on the fuse box in the
trunk (
Ypage 381).
Fuses381
Breakdown assistance
Z