2020-2026 Mercedes GLA SUV Breakdown assistance User Manual
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USER MANUALS FOR EVERY MAKE & MODEL

Breakdown assistance for Your Mercedes GLA SUV Second Generation (2020-2026)

Emergency
Removing the safety vest
There is a high-visibility waistcoat compartment
on the door shelves of all doors for storing a high-
visibility waistcoat.
#
To remove: pull out safety vest bag 1 by loop
2.
#
Open the safety vest bag 1 and pull out the
safety vest.
#
Replace: Fold up the safety vest, roll it up and
place it in the safety vest 1.
#
Slide the safety vest bag 1 along the lower
edge of the armrest into the safety vest com-
partment. Ensure that the loop
2 hangs out
so that it is easy to reach.
%
Remove the packaging lm before sliding it
into the safety vest compartment for a new
safety vest. Otherwise, it may cause uninten-
tional slipping or make removing dicult.
Observe the legal requirements in the individ-
ual countries.
1
Maximum number of washes
2
Maximum wash temperature
3
Do not bleach
4
Do not iron
5
Do not tumble dry
6
Do not dry clean
7
Class 2 safety vest
The requirements dened by the legal standard
are only fullled if the safety vest is the correct
size and is fully closed.
Replace the safety vest in the following cases:
R
The reective strips are damaged or dirty
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R
The maximum permissible number of washes
is exceeded
R
The uorescence property decreases, e.g. due
to permanent exposure to sunlight.
Dispose of the safety vest in an environmentally
friendly way:
R
Please contact your local waste disposal com-
pany.
Warning triangle
▌Removing the warning triangle
The warning triangle is secured to the underside
of the load compartment oor.
#
Open the load compartment oor 1.
#
Remove warning triangle 2.
Depending on the vehicle version, the warning tri-
angle may be located in the loading sill under the
load compartment oor.
▌Setting up the warning triangle
#
Fold the side reectors upwards to form a tri-
angle and attach at the top using the upper
press-stud.
#
Fold the legs down and out to the side.
First-aid kit (so-sided) overview
The rst-aid kit (so-sided) 1 is located on the
le-hand side of the load compartment in the
stowage net or under the load compartment oor,
depending on the vehicle version.
Removing the re extinguisher
&
WARNING Risk of accident due to an
incorrectly secured re extinguisher in the
driver's footwell
A re extinguisher may impede pedal travel or
block a depressed pedal.
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This jeopardises the operating and road safety
of the vehicle.
The re extinguisher can be ung around and
injure the driver or other vehicle occupants.
#
Always store and secure the re extin-
guisher in the bracket.
#
Do not remove the re extinguisher while
driving.
#
Le-hand drive vehicle: pull tab 1 upwards.
#
Right-hand drive vehicle: pull tab 1 down-
wards.
#
Remove re extinguisher 2.
Flat tyre
Notes on at tyres
&
WARNING Risk of accident due to a at
tyre
A at tyre severely aects the driving charac-
teristics as well as steering and braking.
tyres that do not feature run-at characteris-
tics:
#
Do not drive on with a at tyre.
#
Change the at tyre immediately with an
emergency spare wheel or spare wheel.
Alternatively, consult a qualied special-
ist workshop.
Run-at tyres:
#
Observe the information and warning
notes on MOExtended tyres (run-at
tyres).
In the event of a at tyre, the following options are
available depending on your vehicle's equipment:
R
Vehicles with MOExtended tyres: it is possible
to continue the journey for a short period of
time. Make sure you observe the notes on
MOExtended tyres (run-at tyres)
(/ page 597).
R
Vehicles with a TIREFIT kit: you can seal the
tyre so that it is possible to continue the jour-
ney for a short period of time. To do this, use
the TIREFIT kit (/ page 598).
R
(/ page 535)
Vehicles with Mercedes me
connect: you can make a call for breakdown
assistance via the overhead control panel in
the case of a breakdown .
R
All vehicles: change the wheel (/ page 630).
%
(/ page 635)The emergency spare wheel is
only available in certain countries.
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Notes on MOExtended tyres (run-at tyres)
&
WARNING Risk of accident when driving in
limp-home mode
Driving in emergency mode impairs the han-
dling characteristics of the vehicle.
#
Do not exceed the permissible maximum
speed of the MOExtended tyres.
#
Avoid any abrupt steering and driving
manoeuvres as well as driving over
obstacles (kerbs, pot holes, o-road).
This applies, in particular, to a loaded
vehicle.
#
Stop driving in the emergency mode if
you notice:
R
banging noise
R
vehicle vibration
R
smoke which smells like rubber
R
continuous ESP
®
intervention
R
cracks in the tyre sidewalls
#
Aer driving in emergency mode, have
the rims checked by a qualied specialist
workshop with regard to their further
use.
#
The defective tyre must be replaced in
every case.
With MOExtended tyres (run-at tyres), you can
continue to drive your vehicle even if there is a
total loss of pressure in one or more tyres. How-
ever, the tyre aected must not show any clearly
visible damage.
You can recognise MOExtended tyres by the
MOExtended marking which appears on the side
wall of the tyre.
Vehicles with tyre pressure loss warning system:
MOExtended tyres may only be used in conjunc-
tion with an activated tyre pressure loss warning
system.
Vehicles with tyre pressure monitoring system:
MOExtended tyres may only be used in conjunc-
tion with an activated tyre pressure monitoring
system.
If a pressure loss warning message appears in the
driver's display, proceed as follows:
R
Check the tyre for damage.
R
If driving on, observe the following notes.
Driving distance possible in emergency mode
aer the pressure loss warning:
Load condition Driving distance possi-
ble in emergency mode
Partially laden 80 km
Fully laden 30 km
The driving distance possible in emergency mode
may vary depending on the driving style. Observe
the maximum permissible speed of 80 km/h.
If a tyre has gone at and cannot be replaced with
an MOExtended tyre, you can use a standard tyre
as a temporary measure.
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Storage location of the TIREFIT kit (not plug-in
hybrid)
The TIREFIT kit is located under the load compart-
ment oor.
1
Tyre sealant bottle
2
Tyre ination compressor
Depending on the vehicle version, the TIREFIT kit
may also be located in other places under the
load compartment oor.
%
You can nd information on the power cate-
gory (LK) and/or electrical data on the back
of the tyre ination compressor:
R
LK2 – 12 V/15 A, 180 W, 0.8 kg
At a distance of approximately 1 m to the tyre
ination compressor and approximately 1.6 m
above the ground, the following sound pres-
sure levels apply:
R
Emission sound pressure level L
PA
83 dB(A)
R
Sound power level L
WA
91 dB(A)
The tyre ination compressor is maintenance-
free. In the event of a malfunction, please
contact a qualied specialist workshop.
Using the TIREFIT kit
Requirements
R
Tyre sealant bottle and tyre ination compres-
sor are ready for use (/ page 53).
R
TIREFIT sticker is displayed.
R
Gloves are at hand.
You can use TIREFIT tyre sealant to seal perfora-
tion damage of up to 4 mm, particularly those in
the tyre contact surface. You can use TIREFIT in
outside temperatures down to -20 °C.
&
WARNING Risk of accident when using
tyre sealant
The tyre sealant may be unable to seal the
tyre properly, especially in the following cases:
R
there are large cuts or punctures in the
tyre (larger than damage previously men-
tioned)
R
the wheel rims have been damaged
R
aer journeys with very low tyre pressure
or with at tyres
#
Do not continue driving.
#
Consult a qualied specialist workshop.
&
WARNING Risk of injury and poisoning
from tyre sealant
Tyre sealant is hazardous to health and causes
irritation. Do not allow it to come into contact
598
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with your skin, eyes or clothing, and do not
swallow it. Do not inhale any vapours. Keep
the tyre sealant away from children.
Observe the following if you come into contact
with the tyre sealant:
#
Rinse o the tyre sealant from your skin
using water immediately.
#
If tyre sealant gets into your eyes, thor-
oughly rinse them using clean water
immediately.
#
If tyre sealant has been swallowed, thor-
oughly rinse out your mouth immediately
and drink plenty of water. Do not induce
vomiting and seek medical attention
immediately.
#
Change out of clothing which has come
into contact with tyre sealant immedi-
ately.
#
If an allergic reaction occurs, seek medi-
cal attention immediately.
*
NOTE Overheating due to the tyre ination
compressor running too long
#
Do not run the tyre ination compressor
for longer than ten minutes without inter-
ruption.
Observe the manufacturer's safety notes on the
sticker on the tyre sealant bottle.
Have the tyre sealant bottle replaced at a quali-
ed specialist workshop every ve years.
#
Do not remove any foreign objects which have
pierced the tyre.
#
Remove the sticker 1 from the tyre ination
compressor housing and ax it to the instru-
ment cluster within the driver's eld of vision.
#
Remove the sticker 2 from the tyre sealant
bottle and ax it near the valve on the wheel
with the defective tyre.
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#
Pull the plug 7 with cable and lling hose 3
out of the tyre ination compressor housing.
#
Insert the tyre sealant bottle 9 into the
socket
6 of the tyre ination compressor so
that the red arrow on tyre sealant bottle
9
aligns with the red arrow on the tyre ination
compressor.
#
Rotate the tyre sealant bottle 9 clockwise for
a quarter of a turn.
#
Insert the plug of the lling hose 3 into the
socket
5 of the tyre sealant bottle 9.
#
Rotate the lling hose 3 clockwise for a
quarter of a turn.
#
Remove the valve cap from the valve A on
the faulty tyre.
#
Screw the union nut 4 of the lling hose 3
onto the valve A.
#
Insert the plug 7 into a 12‑V‑ socket in your
vehicle.
#
Turn the key to position 1 in the ignition lock.
#
Press the on and o switch 8 on the tyre
ination compressor.
The tyre ination compressor is switched on.
The tyre is inated. First, tyre sealant is pum-
ped into the tyre. The pressure may briey rise
to approximately 500 kPa (5 bar/73 psi).
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Do not switch o the tyre ination compressor
during this phase!
#
Allow the tyre ination compressor to run for a
maximum ten minutes.
The tyre should then have attained a tyre pres-
sure of at least 200 kPa (2.0 bar/29 psi).
If tyre sealant leaks out, make sure you clean the
aected area as quickly as possible. It is prefera-
ble to use clean water.
If you get tyre sealant on your clothing, have it
cleaned as soon as possible with perchloroethy-
lene.
If, aer ten minutes, a tyre pressure of 200 kPa
(2.0 bar/29 psi) has not been attained:
#
Switch o the tyre ination compressor.
#
Unscrew the lling hose from the valve of the
defective tyre.
Please note that tyre sealant may leak out when
unscrewing the lling hose.
#
Drive the vehicle forwards or in reverse very
slowly for approximately 10 m.
#
Pump up the tyre again.
Aer a maximum ten minutes, the tyre pres-
sure must be at least 200 kPa (2.0 bar/
29 psi).
&
WARNING Risk of accident due to the
specied tyre pressure not being attained
If the specied tyre pressure is not attained
aer the specied time, the tyre is too badly
damaged. The tyre sealant cannot repair the
tyre in this instance.
The braking and driving characteristics may be
greatly impaired.
#
Do not continue driving.
#
Consult a qualied specialist workshop.
*
NOTE Staining from leaking tyre sealant
Aer use, excess tyre sealant may leak out
from the lling hose.
#
Therefore, place the lling hose in the
plastic bag that contained the TIREFIT
kit.
If, aer ten minutes, a tyre pressure of 200 kPa
(2.0 bar/29 psi) has been attained:
#
Switch o the tyre ination compressor.
#
Unscrew the lling hose from the valve of the
defective tyre.
Please note that tyre sealant may leak out when
unscrewing the lling hose.
&
WARNING Risk of accident from driving
with sealed tyres
A tyre temporarily sealed with tyre sealant
impairs the handling characteristics and is not
suitable for higher speeds.
#
Adapt your driving style accordingly and
drive carefully.
#
Do not exceed the maximum speed limit
with a tyre that has been repaired using
tyre sealant.
#
Observe the maximum permissible speed of
80 km/h for a tyre sealed with tyre sealant.
#
The sticker with details of the maximum per-
missible speed must be axed to the instru-
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F247 0074 02
ment cluster where it can be easily seen by
the driver.
*
NOTE Staining from leaking tyre sealant
Aer use, excess tyre sealant may leak out
from the lling hose.
#
Therefore, place the lling hose in the
plastic bag that contained the TIREFIT
kit.
+
ENVIRONMENTAL NOTE Environmental
pollution caused by environmentally irre-
sponsible disposal
Tyre sealant contains pollutants.
#
Have the tyre sealant bottle disposed of
professionally, e.g. at a Mercedes-Benz
Service Centre.
#
Stow the tyre sealant bottle, the tyre ination
compressor and the warning triangle.
#
Pull away immediately.
#
Stop driving aer approximately ten minutes
and check the tyre pressure using the tyre
ination compressor.
The tyre pressure must now be at least
130 kPa (1.3 bar/19 psi).
&
WARNING Risk of accident due to the
specied tyre pressure not being attained
If the specied tyre pressure is not reached,
the tyre is too badly damaged. The tyre seal-
ant cannot repair the tyre in this instance.
The braking and driving characteristics may be
greatly impaired.
#
Do not continue driving.
#
Consult a qualied specialist workshop.
Countries that have Mercedes-Benz Service24h:
you will nd a sticker with the telephone number,
e.g. on the B‑pillar on the driver's side.
#
Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/19 psi). Refer to the tyre
pressure table on the fuel ller ap for values.
Increasing the tyre pressure
#
Switch on the tyre ination compressor.
Decreasing the tyre pressure
#
Remove the tyre sealant bottle from the tyre
ination compressor.
#
Insert the lling hose into the socket of the
tyre ination compressor and rotate it clock-
wise a quarter of a turn.
#
Press the pressure release button C next to
the manometer
B.
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When the tyre pressure is correct
#
Unscrew the lling hose from the valve of the
sealed tyre.
#
Screw the valve cap onto the valve of the
sealed tyre.
#
Stow the tyre sealant bottle and the tyre ina-
tion compressor.
#
Drive to the nearest qualied specialist work-
shop and have the tyre, tyre sealant bottle and
lling hose replaced.
Battery (vehicle)
Notes on the 12 V battery
&
WARNING Risk of an accident due to work
carried out incorrectly on the battery
Work carried out incorrectly on the battery
can, for example, lead to a short circuit. This
can restrict functions relevant for safety sys-
tems and impair the operating safety of your
vehicle.
You could lose control of the vehicle in the fol-
lowing situations in particular:
R
when braking
R
in the event of abrupt steering manoeuvres
and/or when the vehicle's speed is not
adapted to the road conditions
#
In the event of a short circuit or a similar
incident, contact a qualied specialist
workshop immediately.
#
Do not drive on.
#
Always have work on the battery carried
out at a qualied specialist workshop.
R
Further information on ABS (/ page 323)
R
Further information on ESP
®
(/ page 324)
For safety reasons, Mercedes-Benz recommends
that you only use batteries which have been
approved for your vehicle by Mercedes-Benz.
All vehicles except vehicles with a lithium-ion bat-
tery
&
WARNING Risk of explosion due to elec-
trostatic charge
Electrostatic charge can ignite the highly
explosive gas mixture in the battery.
#
To discharge any electrostatic charge
that may have built up, touch the metal
vehicle body before handling the battery.
The highly ammable gas mixture is created while
the battery is charging and during starting assis-
tance.
&
WARNING Danger of chemical burns from
the battery acid
Battery acid is caustic.
#
Avoid contact with the skin, eyes or
clothing.
#
Do not lean over the battery.
#
Do not inhale battery gases.
Breakdown assistance
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F247 0074 02
#
Keep children away from the battery.
#
Immediately rinse battery acid o thor-
oughly with plenty of clean water and
seek medical attention immediately.
All vehicles
+
ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of bat-
teries
Batteries contain pollutants. It is illegal
to dispose of them with the household rub-
bish.
#
Dispose of batteries in an
environmentally responsible manner.
Take discharged batteries to a qualied
specialist workshop or to a collection
point for used batteries.
If you have to disconnect the 12 V battery, con-
tact a qualied specialist workshop.
Comply with safety notes and take protective
measures when handling batteries.
Risk of explosion if the 12 V battery is
used improperly.
Fire, naked ames and smoking are pro-
hibited when handling the battery. Avoid
creating sparks.
Electrolyte or battery acid is corrosive.
Avoid contact with the skin, eyes or cloth-
ing. Wear suitable protective clothing, in
particular gloves, an apron and a face
mask. Immediately rinse electrolyte or
acid splashes o with clean water. Consult
a doctor immediately.
Do not place heavy objects on the surface
of the battery or use the battery to sup-
port a person in any way.
Wear safety glasses.
Keep children away.
Observe this Owner's Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
R
If available: activate standby mode
(/ page 320, 321).
R
Alternatively: connect the battery to a battery
charger approved by Mercedes-Benz or con-
sult a qualied specialist workshop to discon-
nect the battery.
Notes on the 48 V battery
&
WARNING Risk of an accident due to work
carried out incorrectly on the battery
Work carried out incorrectly on the battery
can, for example, lead to a short circuit. This
can restrict functions relevant for safety sys-
604
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F247 0074 02
tems and impair the operating safety of your
vehicle.
You could lose control of the vehicle in the fol-
lowing situations in particular:
R
when braking
R
in the event of abrupt steering manoeuvres
and/or when the vehicle's speed is not
adapted to the road conditions
#
In the event of a short circuit or a similar
incident, contact a qualied specialist
workshop immediately.
#
Do not drive on.
#
Always have work on the battery carried
out at a qualied specialist workshop.
R
Further information on ABS (/ page 323)
R
Further information on ESP
®
(/ page 324)
+
ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of bat-
teries
Batteries contain pollutants. It is illegal
to dispose of them with the household rub-
bish.
#
Dispose of batteries in an environ-
mentally responsible manner. Take dis-
charged batteries to a qualied specialist
workshop or to a collection point for
used batteries.
Only have work on the 48 V battery carried out at
a qualied specialist workshop.
Comply with safety notes and take protective
measures when handling batteries.
Risk of explosion if the 48 V battery is
used improperly.
The surface of the 48 V battery may be
hot.
Fire, naked ames and smoking are pro-
hibited when handling the battery. Avoid
creating sparks.
Electrolyte or battery acid is corrosive.
Avoid contact with the skin, eyes or cloth-
ing. Wear suitable protective clothing, in
particular gloves, an apron and a face
mask. Immediately rinse o splashes of
electrolyte or acid with plenty of clean
water. Consult a doctor immediately.
Do not place heavy objects on the surface
of the battery or use the battery to sup-
port a person in any way.
Do not perform any work on the battery.
Always have any work on the battery car-
ried out at a qualied specialist workshop.
Do not disconnect the battery yourself.
Do not remove the battery yourself. Do
not attempt to open the battery.
Keep children away.
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F247 0074 02
Wear safety glasses.
Observe this Owner's Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
R
If available: activate standby mode
(/ page 320, 321).
Notes on the high-voltage battery
&
DANGER Risk of re and explosion from
excessive internal pressure of the high-
voltage battery
In the event of a vehicle re, ammable gas
can escape and ignite.
#
Stop the charging process immediately
in case of unusual odours, smoke or
burn marks.
#
Leave the danger zone immediately.
Secure the danger zone at a sucient
distance.
#
Call the re service.
Observe the notes on charging the high-voltage
battery (/ page 291).
Risk of explosion.
Fire, naked ames and smoking are pro-
hibited when handling the battery. Avoid
creating sparks.
Electrolyte or battery acid is corrosive.
Avoid contact with the skin, eyes or cloth-
ing. Wear suitable protective clothing, in
particular gloves, an apron and a face
mask. Immediately rinse electrolyte or
acid splashes o with clean water. Consult
a doctor immediately.
Wear safety glasses.
Keep children away.
Observe this Owner's Manual.
Notes on starting assistance and charging the 12
V battery
Always use the jump-start connection point in the
engine compartment for battery charging and
starting assistance.
*
NOTE Damage to the battery due to over-
voltage
When charging using a battery charger without
a maximum charging voltage, the battery or
the on-board electronics may be damaged.
#
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
606
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F247 0074 02
&
WARNING Risk of explosion due to the
ignition of hydrogen gas
If there is a short circuit or sparks are created,
there is a danger of hydrogen gas igniting
when you charge the battery.
#
Take care that the positive terminal of a
connected battery does not come into
contact with vehicle parts.
#
Never place metal objects or tools on a
battery.
#
When connecting and disconnecting the
battery, always observe the sequence of
battery terminals described.
#
During starting assistance, always take
care to connect only battery terminals of
identical polarity.
#
During starting assistance, observe the
sequence described for connecting and
disconnecting the jump leads.
#
Do not connect or disconnect the bat-
tery terminals with the engine running.
&
WARNING Risk of explosion due to explo-
sive mixture of gases
An explosive mixture of gases can escape
from the battery during charging and starting
assistance.
#
Fire, naked ames, smoking and creating
sparks must be avoided.
#
Make sure there is adequate ventilation.
#
Do not stand over the battery.
&
WARNING Risk of explosion from a frozen
battery
A discharged battery may freeze at tempera-
tures slightly above or below freezing point.
During starting assistance or battery charging,
battery gas can be released.
#
Always allow a battery to thaw before
charging it or performing starting assis-
tance.
If the indicator/warning lamps in the instrument
display do not light up in cold temperatures, the
discharged battery is very probably frozen. In this
case you must neither charge the battery nor
jump-start the vehicle.
The operating life of a thawed battery may be
drastically shortened. The starting behaviour may
deteriorate, especially in low temperatures.
It is recommended that a thawed battery be
checked in a qualied specialist workshop.
*
NOTE Damage caused by numerous or
extended attempts to start the engine
Numerous or extended attempts to start the
engine may damage the catalytic converter
due to non-combusted fuel.
#
Avoid numerous and extended attempts
to start the engine.
Observe the following points during starting assis-
tance and battery charging:
R
Only use undamaged jump leads/charging
cables with a sucient cross-section and
insulated terminal clamps.
R
Uninsulated parts of the terminal clamps must
not come into contact with other metal parts
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F247 0074 02
while the jump leads/charging cables are con-
nected to the battery/jump-start connection
point.
R
The jump leads/charging cables must not
touch any parts that can move when the
engine is running.
R
Always make sure that neither you nor the bat-
tery are electrostatically charged.
R
Be absolutely sure to keep away from re and
naked ames.
R
Do not lean over a battery.
Observe the following additional points when
charging the battery:
R
Only use chargers that have been tested and
approved by Mercedes-Benz.
R
Read the operating instructions for the
charger before charging the battery.
Observe the additional following points during
starting assistance:
R
For starting assistance, only use batteries with
a nominal voltage of 12 V.
R
The vehicles must not touch each other.
R
Petrol engine: only receive starting assistance
when the engine is cold and the exhaust sys-
tem has cooled.
Starting assistance and charging the 12 V battery
Starting assistance/preparation for charging
#
Secure the vehicle with the electric parking
brake.
#
Shi the transmission to position j.
#
Switch the vehicle and all electrical consum-
ers o.
#
Open the bonnet.
#
Slide the cover 1 of the positive terminal 2
on the jump-start connection point in the
direction of the arrow.
Starting assistance
#
Connect the jump lead to the positive terminal
of your vehicle.
#
Connect the jump lead to the positive terminal
of the donor battery.
608
Breakdown assistance
F247 0074 02
#
Run the engine of the assisting vehicle at
idling speed.
#
Connect the jump lead to the negative termi-
nal of the donor battery.
#
Connect the jump lead to the earth point 3
of your vehicle.
#
Start the engine of your vehicle.
#
Let the engine run for a few minutes.
#
Before disconnecting the jump leads, switch
on an electrical consumer in your vehicle, e.g.
the rear window heating or lights.
When the starting assistance has been comple-
ted:
#
Disconnect the jump lead from the earth point
3 of your vehicle.
#
Disconnect the jump lead from the negative
terminal of the donor battery.
#
Disconnect the jump lead from the positive
terminal of your own vehicle.
#
Disconnect the jump lead from the positive
terminal of the donor battery.
#
Aer removing the jump leads, close the cover
1 of the positive terminal 2.
Plug-in hybrid: if the vehicle has been jump-star-
ted, the electric drive system may not be available
for around 30 minutes.
Further information can be obtained at a qualied
specialist workshop.
Charging the 12 V battery
#
Connect the charging cable to the positive ter-
minal of your vehicle.
#
Connect the charging cable to the positive ter-
minal of the charger.
#
Connect the charging cable to the negative
terminal of the charger.
#
Connect the charging cable to the earth point
3 of your vehicle.
#
Start the charging procedure.
When the charging procedure has been comple-
ted:
#
Disconnect the charging cable from the earth
point 3 of your vehicle.
#
Disconnect the charging cable from the nega-
tive terminal of the charger.
#
Disconnect the charging cable from the posi-
tive terminal of your vehicle.
#
Disconnect the charging cable from the posi-
tive terminal of the charger.
#
Aer removing the charging cables, close the
cover 1 of the positive terminal 2.
Replacing the 12 V battery
#
Observe the notes on the 12 V battery
(/ page 603).
Mercedes-Benz recommends that you have the
12 V battery replaced at a qualied specialist
workshop, e.g. at a Mercedes-Benz Service
Centre.
Observe the following notes if you want to replace
the battery yourself:
R
Always replace a faulty battery with a battery
which meets the specic vehicle require-
ments.
Breakdown assistance
609
F247 0074 02
The vehicle is equipped with a eece battery.
Full vehicle functionality is only guaranteed
with a eece battery. For safety reasons,
Mercedes-Benz recommends that you only
use batteries which have been tested and
approved for your vehicle by Mercedes-Benz.
R
Use detachable parts such as vent hoses,
elbow ttings or terminal covers from the bat-
tery which is to be replaced.
R
Make sure that the vent hose is always con-
nected to the original opening on the side of
the battery.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
R
Make sure that detachable parts are recon-
nected in the same way.
Tow-starting or towing away
Overview of permissible towing methods (not
plug-in hybrid)
Permitted towing methods
*
NOTE Damage from automatic braking
If one of the following functions is activated,
the vehicle will brake automatically in certain
situations:
R
Active Brake Assist
R
Active Distance Assist DISTRONIC
R
HOLD function
R
Active Parking Assist
To avoid damaging the vehicle, deactivate
these systems e.g. during towing or in the car
wash.
Mercedes-Benz recommends transporting your
vehicle in the case of a breakdown, rather than
towing it away.
For towing with both axles on the ground, use a
tow rope or tow rod. Do not use tow bar systems.
&
WARNING Risk of accident when towing
with steering wheel lock
If the steering wheel lock is engaged, you will
not be able to steer the vehicle.
#
When towing with a tow rope or tow bar,
always switch on the vehicle.
*
NOTE Damage to the vehicle due to tow-
ing away incorrectly
#
Observe the instructions and notes on
towing away.
610
Breakdown assistance
F247 0074 02
Vehicles with automatic transmission
Both axles on
the ground
Yes, for a maximum of 50 km
at 50 km/h
Front axle
raised
Yes, for a maximum of 50 km
at 50 km/h
Rear axle
raised
Yes, for a maximum of 50 km
at 50 km/h
4MATIC vehicles
Both axles on
the ground
Yes, for a maximum of 50 km
at 50 km/h
Front axle
raised
No
Rear axle
raised
No
Towing with a raised axle: towing should be per-
formed by a towing company.
Overview of permitted towing methods (plug-in
hybrid)
Mercedes-Benz recommends transporting your
vehicle in the case of a breakdown, rather than
towing it away.
For towing with both axles on the ground, use a
tow rope or tow rod. Do not use tow bar systems.
*
NOTE Damage to the vehicle due to tow-
ing away incorrectly
#
Observe the instructions and notes on
towing away.
Breakdown assistance
611
F247 0074 02
Permitted towing methods
Vehicle equipment/towing method
Both axles on the ground Front axle raised Rear axle raised
Plug-in hybrid Yes, for a maximum of 50 km at
50 km/h
Yes, for a maximum of 50 km at
50 km/h
Yes, for a maximum of 50 km at
50 km/h
The steering wheel must be xed in
the centre position with a steering
wheel lock.
In the following situations, only transporting the
vehicle is permitted:
R
The driver display is not working
or
R
The á
Towing not permitted See Own-
er's Manual
message is shown.
Exception: If the vehicle is located in a danger
zone, it can be recovered from the danger zone
despite the display message or the display not
working.
It must not be towed further than 50 m with both
axles on the ground. A towing speed of 10 km/h
must not be exceeded. Beyond these limits, only
transporting is permitted.
Towing the vehicle with both axles on the ground
#
Observe the notes on the permitted towing
methods.
#
Make sure that the battery is connected and
charged.
Observe the following points when the battery is
discharged:
R
The vehicle cannot be started.
612
Breakdown assistance
F247 0074 02
R
The electric parking brake cannot be released
or applied.
R
Vehicles with automatic transmission: the
transmission cannot be shied to position i
or j.
%
Vehicles with automatic transmission: if the
transmission cannot be shied to position i
or if the display does not show anything,
transport the vehicle (/ page 614). A towing
vehicle with liing equipment is required for
vehicle transportation.
*
NOTE Damage due to towing away at
excessively high speeds or over long dis-
tances
The drivetrain could be damaged when towing
at excessively high speeds or over long distan-
ces.
#
A towing speed of 50 km/h must not be
exceeded.
#
A towing distance of 50 km must not be
exceeded.
&
WARNING Risk of accident when towing a
vehicle which is too heavy
If the vehicle to be tow-started or towed away
is heavier than the permissible gross mass of
your vehicle, the following situations can
occur:
R
the towing eye may become detached.
R
the vehicle/trailer combination may
swerve or overturn.
#
Before tow-starting or towing away,
check if the vehicle to be tow-started or
towed away exceeds the permissible
gross mass.
If a vehicle has to be tow-started or towed away,
its permissible gross mass must not exceed the
permissible gross mass of the towing vehicle.
#
Information on the permissible gross mass of
the vehicle can be found on the vehicle identi-
cation plate (/ page 756).
#
Vehicles with automatic transmission: do not
open the driver's door or front-passenger
door; the transmission otherwise automati-
cally shis to position j.
#
Fit the towing eye (/ page 615).
#
Fasten the towing device.
*
NOTE Damage due to incorrect connec-
tion of the tow bar
#
Only connect the tow rope or tow bar to
the towing eyes.
#
Deactivate the automatic locking mechanism
(/ page 146).
#
Do not activate the HOLD function.
#
Deactivate tow-away protection
(/ page 162).
#
Deactivate Active Brake Assist (/ page 355).
#
Vehicles with automatic transmission: shi to
position i.
#
Release the electric parking brake.
Breakdown assistance
613
F247 0074 02
&
WARNING Risk of accident due to limited
safety-related functions during the towing
process
Safety-related functions are limited or no lon-
ger available in the following situations:
R
the vehicle is switched o.
R
the brake system or power steering system
is malfunctioning.
R
the energy supply or the on-board electri-
cal system is malfunctioning.
When your vehicle is towed away, signicantly
more eort may be required to steer and
brake than is normally required.
#
Use a tow bar.
#
Make sure that the steering wheel can
move freely before towing the vehicle
away.
*
NOTE Damage due to excessive tractive
power
If you pull away sharply, the tractive power
may be too high and the vehicles could be
damaged.
#
Pull away slowly and smoothly.
Loading the vehicle for transport
Plug-in hybrid: transportation of vehicles should
only be carried out by professional recovery com-
panies.
#
Observe the notes on towing away
(/ page 53).
#
Connect the towing device to the towing eye
in order to load the vehicle.
%
You can also attach the tow bar to the trailer
hitch.
#
Vehicles with automatic transmission: shi the
automatic transmission to position i.
%
Vehicles with automatic transmission: the
automatic transmission may be locked in posi-
tion j in the event of damage to the electri-
cal system. To shi to i, provide the on-
board electrical system with power
(/ page 49).
#
Load the vehicle onto the transporter.
#
Vehicles with automatic transmission: shi the
automatic transmission to position j.
#
Use the electric parking brake to secure the
vehicle against rolling away.
#
Only secure the vehicle by the wheels.
Vehicles with adaptive damping adjustment
&
WARNING Risk of an accident when trans-
porting vehicles with adaptive damping
adjustment
When transporting vehicles with adaptive
damping adjustment, the vehicle/trailer com-
bination may begin to rock and start to skid.
#
Load the vehicle correctly onto the
transporter.
#
Secure the vehicle on all four wheels
with suitable tensioning straps.
614
Breakdown assistance
F247 0074 02
*
NOTE Damage to the vehicle from secur-
ing it incorrectly
#
Aer loading, the vehicle must be
secured on all four wheels. Otherwise,
the vehicle could be damaged.
#
A minimum distance of 20 cm upwards
and 10 cm downwards must be kept to
the transport platform.
#
Secure the vehicle on all four wheels aer
loading.
4MATIC vehicles/vehicles with automatic trans-
mission
#
Make sure that the front and rear axles come
to rest on the same transportation vehicle.
*
NOTE Damage to the drive train due to
incorrect positioning of the vehicle
#
Do not position the vehicle above the
connection point of the transport vehi-
cle.
Towing eye storage location
The towing eye is under the load compartment
oor.
Depending on the vehicle version, the towing eye
is in a dierent position in the load compartment.
Fitting and removing the towing eye
#
Press the mark on the cover 1 inwards and
remove.
#
Screw in the towing eye clockwise as far as it
will go and tighten.
Vehicles with a trailer hitch: vehicles with a trailer
hitch do not have a rear bracket for the towing
eye. Fasten the tow bar to the trailer hitch.
Breakdown assistance
615
F247 0074 02
#
Aer removing the towing eye, engage the
cover 1 in the bumper.
*
NOTE Damage to the vehicle due to incor-
rect use of the towing eye or trailer hitch
When a towing eye or trailer hitch is used to
recover a vehicle, the vehicle may be damaged
in the process.
#
Only use the towing eye or trailer hitch to
tow away or tow start the vehicle.
#
Do not use the towing eye or trailer hitch
to tow the vehicle during recovery.
Tow-starting the vehicle
Vehicles with automatic transmission
*
NOTE Damage to the automatic transmis-
sion due to tow-starting
The automatic transmission may be damaged
in the process of tow-starting vehicles with
automatic transmission.
#
Vehicles with automatic transmission
must not be tow-started.
#
Vehicles with an automatic transmission must
not be tow-started.
Electrical fuses
Notes on electrical fuses
&
WARNING Risk of accident and injury due
to overloaded lines
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper-
age, the electric line could be overloaded.
This could result in a re.
#
Always replace faulty fuses with speci-
ed new fuses containing the correct
amperage.
*
NOTE Damage due to incorrect fuses
Using incorrect fuses can result in damage to
electrical components or systems or their
functions being considerably restricted.
#
Use only fuses approved for Mercedes-
Benz with the respective specied fuse
rating.
Blown fuses must be replaced with fuses of the
same rating, which you can recognise by the col-
our and the label. The fuse ratings and further
information to be observed can be found in the
fuse assignment diagram.
Fuse assignment diagram: on the fuse box in the
engine compartment (/ page 617).
*
NOTE Damage or malfunctions caused by
moisture
Moisture may cause damage to the electrical
system or cause it to malfunction.
#
When the fuse box is open, make sure
that no moisture can enter the fuse box.
616
Breakdown assistance
F247 0074 02
#
When closing the fuse box, make sure
that the seal of the lid is positioned cor-
rectly on the fuse box.
If the newly inserted fuse also blows, have the
cause traced and rectied at a qualied specialist
workshop.
Ensure the following before replacing a fuse:
R
The vehicle is secured against rolling away.
R
All electrical consumers are switched o.
R
The vehicle is switched o.
The electrical fuses are located in various fuse
boxes:
R
Fuse box in the engine compartment on the
le-hand side of the vehicle, when viewed in
the direction of travel (/ page 617)
R
Fuse box in the front passenger footwell
(/ page 618)
R
Fuse box in the centre of the load compart-
ment (/ page 619)
Opening and closing the fuse box in the engine
compartment
Requirements:
R
A dry cloth and a screwdriver are available.
Observe the notes on electrical fuses
(/ page 51).
Open
&
WARNING Risk of injury from using the
windscreen wipers when the bonnet is
open
If the windscreen wipers start moving when
the bonnet is open, you could be trapped by
the wiper linkage.
#
Always switch o the windscreen wipers
and vehicle before opening the engine
bonnet.
#
Open the bonnet.
#
Remove any existing moisture from the fuse
box using a dry cloth.
#
Loosen screws 1.
#
Press clamps 2 and li the fuse box lid up
and out.
The fuse assignment diagram is in a recess on the
side of the fuse box.
Breakdown assistance
617
F247 0074 02
Closing
#
Check whether the seal is positioned correctly
in the lid.
#
Place the lid on the fuse box.
#
Make sure that clamps 2 engage.
#
Tighten screws 1.
#
Close the bonnet.
Opening and closing the fuse box in the front
passenger footwell
Requirements
Observe the notes on electrical fuses
(/ page 51).
Opening
#
Li carpet 1 in the direction of the arrow.
#
Loosen screws 2 and remove the fuse box
lid from the top.
618
Breakdown assistance
F247 0074 02
Closing
#
Place the lid on the fuse box.
#
Tighten screws 2.
#
Fold back the carpet.
Opening and closing the fuse box in the load com-
partment
Requirements
Observe the notes on electrical fuses
(/ page 51).
#
Open the load compartment oor.
Fuse box 1 is located underneath the load com-
partment oor.
Breakdown assistance
619
F247 0074 02

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