XConnect negative terminal?of donor battery Bto ground point Aof your vehicle using the
jumper cable, connecting the jumper cable to battery of other vehicle Bfirst.
XStart the engine.
XBefore disconnecting the jumper cables, let the engine run for several minutes.
XFirst, remove the jumper cables from ground point Aand negative terminal ?, then from pos-
itive clamp ;and positive terminal =. Begineach time at the contacts on your own vehicle first.
XClose cover :of positive clamp ;after removing the jumper cables.
XHave the battery checked at a qualified specialist workshop.
Jump-starting isnot cons idered to bea normal operating condition.
iJumper cables and further information regarding jump-starting can beobtained at any qualified
specialist workshop.
Towing and tow-starting
Important safety notes
GWARNING
Functions relevant to safety are restricted or
no longer availab leif:
Rthe engine isnot running.
Rthe brake system or the power steering is
malfunctioning.
Rthere isa malfunction inthe voltage supply
or the veh icle's electrical system.
If your veh icle is bein g towed, much more
force may benecessary to steer or brake.
There isa risk of an acc ident.
In such cases, use a tow bar. Before to wing,
make sure that the steering moves freely.
GWAR NING
When to wingor tow-starting another veh icle
and its weight isgreater than the permis sible
gross weight of your veh icle, the:
Rthe to wingeye could detach itself
Rthe veh icle/trailer co mbination could roll-
over.
There isa risk of an acc ident.
When to wingor tow-starting another veh icle,
its weight should not begreater than the per-
mis sible gross weight of your veh icle.
Details on the permis siblegross veh icleweight
of your veh iclecan befound on the veh icle iden-
tification plate (
Ypage 322).
!When Active Brake Assist, Distance Pilot
DI ST RONIC or the HOLD function isactivated,
the vehicle brakes automatically incertain
situations.
To avoid damage to the vehicle, deactivate
these systems inthe following or similar sit-
uations:
Rwhen towing the vehicle
Rin the car wash
!Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could be
damaged.
!Do not use the towing eye for recovery, th is
could damage the vehicle. If indoubt, recover
the vehicle with a crane.
!When towing, pull away slowly and
smoothly. Ifthe tractive power is too high, the
vehicles could be damaged.
!Do not tow with sling-type equipment. This
could damage the vehicle.
!When towing vehicles with KEYLESS-GO,
use the key instead of the Start /S top button.
Otherwise, the automat ictransmission may
shift to position Pwhen the driver's or front-
passenger door are opened, which could lead to damage to the transmission.
!The vehicle can betowed a maximum of
30 mile s (50km). The towing speed of 30 mph
(50 km/ h)must not be exceeded.
If the vehicle has to be towed more than
30 miles (50km), the entire vehicle must be
raised and transported.
Towing and tow-starting287
Breakdown assistance
Z
!If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehicle.
It is better to have the vehicle transported than
to have it towed away.
If the vehicle has suffered transmission damage,
have it transported on a transporter or trailer.
The automatic transmission must be in position
N when the vehicle is being towed.
The battery must be connected and charged.
Otherwise, you:
Rcannot turn the SmartKey to position 2in the
ignition lock.
Rcannot shift the automatic transmission to
position N.
In the event of damage to the electrical sys-
tem
If the battery is defective, the automatic trans-
mission 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 285).
Have the vehicle transported on a transporter or
trailer.
Disarm the automatic locking feature before the vehicle is towed (
Ypage 82). You could other-
wise be locked out when pushing or towing the
vehicle.
Installing/removing the towing eye
Installing the towing eye
GWARNING
The exhaust tail pipe may be very hot. There is
a risk of burns when removing the rear cover.
Do not touch the exhaust pipe. Take particular
care when removing the rear cover.
All vehicles except Mercedes-AMG vehicles
Mercedes-AMG vehicles
The brackets for the screw-in towing eye are
located in the bumpers. They are at the front and
at the rear, behind the covers.
XRemove the towing eye from the vehicle tool
kit (Ypage 277).
XPull cover :out of the bumper in the direc-
tion of the arrow by inserting your fingers into the recess.
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.
288Towing and tow-starting
Breakdown assistance
Removing the towing eye
XUnscrew and remove the towing eye.
XPosition cover:on top of the bumper and
press it in at the bottom until it engages.
XAttach cover ;to the bumper and press until
it engages.
XPlace the towing eye in the vehicle tool kit.
Towing a vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(
Ypage 287).
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 transmission stays in posi-
tion Nwhen towing the vehicle, you must
observe the following points:
XMake sure that the vehicle is stationary.
XTurn the SmartKey to position 2in the ignition
lock.
On vehicles with KEYLESS-GO, use the Smart-
Key instead of the Start/Stop button
(
Ypage 124).
XDepress and hold the brake pedal.
XShift the automatic transmission to position
N.
XRelease the brake pedal.
XRelease the parking brake.
XSwitch on the hazard warning lamps
(Ypage 107).
XLeave the SmartKey in position 2in the igni-
tion lock.
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 turn signals for
the desired direction flash. After resetting the
combination switch, the hazard warning lamp
starts flashing again.
Towing the vehicle with the rear axle
raised
!
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 automatic transmission must
not be towed with the rear axle raised. The
vehicle/trailer combination may otherwise
swerve or even roll over.
Transporting the vehicle
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.
Towing and tow-starting289
Breakdown assistance
Z
As soonas the vehicle has been loaded:
XPrevent the veh iclefrom rolling away by
applyin g the parking brake.
XShift the automat ictransmission to posi-
tion P.
XTurn the SmartKey to position 0inthe ignition
lock and remove it.
XSecure the veh icle.
Notes on 4MATIC vehicles
!
Vehicle swit h 4MATIC must not betowed
wit h either the front or the rear axle raised, as
doin g so willdamage the transmission.
If the veh iclehas transmission damage or dam-
age to the front or rear axle, have ittransported
on a transporter or trailer.
In the event ofdama ge to the electrical sys-
tem
If the battery isdefective, the automat ictrans-
mission will belocked inposition P. To shift the
automat ictransmission to position N, you must
pro vide power to the veh icle's electrical system
in the same way as when jump-starting
(
Ypage 285).
Have the veh icletransported on a transporter or
trailer.
Tow-starting (emergency engine
starting)
!
Vehicle swit h automat ictransmission must
not bestarted bytow-starting. This could oth-
erwise damage the transmission.
iYou can find information on "Jump-starting"
under (Ypage 285).
Fuses
Important safety notes
GWAR NING
If you man ipulate orbridge a faulty fuse or if
you replace it with a fuse with a higher amper-
age, the electr iccables could beoverloaded.
This could result ina fire. There isa risk of an
acc iden t and injury.
Alwa ys replace faulty fuses with the specified
new fuses having the correct amperage.
Blo wn fuses must bereplaced with fuses of the
same rating, which you can recognize bythe
color and value. The fuse ratings are listed inthe
fuse allocation chart.
The fuse allocation chart is located in the vehicle
tool kit in the stowage compartment under the
trunk floor (
Ypage 277).
If a ne wlyinserted fuse also blows, have the
cause traced and rectified at a qualified special-
ist workshop, e.g. an authorized Mercedes-Benz
Center.
!Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Otherwise, components or systems could be
damaged.
!Make sure that no moisture can enter the
fuse box when the cover isopen.
!When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing inor dirt could otherwise impair the oper-
ation of the fuses.
The fuses in your vehicle serve to closedown
faulty circuits. Ifa fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
Before changing a fuse
Pay attention to the important safety notes
(Ypage 290).
XSwit ch off the engine.
XSwitch off all electrical consumers.
XMake sure that the ignition is switched off
(Ypage 123).
or
XWhen using the SmartKey, turn the SmartKey
to position 0in the ignition lock and remove it
(
Ypage 123).
XSecure the vehicle against rolling away
(Ypage 141).
All indicator lamps in the instrument cluster
must be off.
290Fuses
Breakdown assistance
Always pay attention to the instructions and
safety notes in the "Changing a wheel" section
(
Ypage 312).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been approved for Mercedes-Benz vehicles and the respective
wheel.
!Mercedes-AMG vehicles with ceramic-
brake disc: during removal and repositioning
of the wheel, the wheel rim can strike the
ceramic-brake disc and damage it. Therefore,
you should proceed carefully and get a sec-
ond person assist to you. Alternatively, you
can use a second alignment bolt.
!To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
XClean the wheel and wheel hub contact sur-
faces.
XSlide the wheel to be mounted onto the align-
ment bolt and push it on.
XTighten the wheel bolts until they are finger-
tight.
XUnscrew the alignment bolt.
XTighten the last wheel bolt until it is finger-
tight.
XVehicles with a collapsible spare wheel:
inflate the collapsible spare wheel
(
Ypage 319).
Only then lower the vehicle.
Lowering the vehicle
GWARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
!Vehicles with a collapsible spare wheel:
before lowering the vehicle, inflate the col-
lapsible spare wheel with the tire inflation
compressor. The wheel rim could otherwise
be damaged.
XTurn the crank of the jack counter-clockwise
until the vehicle is once again standing firmly
on the ground.
XPlace the jack to one side.
XTighten the wheel bolts evenly in a crosswise pattern in the sequence indicated ( :toA).
The specified tightening torque is 96 lb-ft
(130 Nm) .
XTurn the jack back to its initial position.
XStow the jack and the rest of the vehicle tools
in the trunk again.
XCheck the tire pressure of the newly mounted
wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 295).
When you are driving with the collapsible spare wheel mounted, the tire pressure loss warning
system or the tire pressure monitor cannot func-
tion reliably. Only restart the tire pressure loss
warning system or tire pressure monitor when
the defective wheel has been replaced with a
new wheel.
316Changing a wheel
Wheels and tires
Rdo not switch ESP®off.
Rhave a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
When using an emergency spare wheel or spare
wheel of a different size, you must not exceed
the maximum speed of 50 mph (80 km/h).
Snow chains must not be mounted on emer-
gency spare wheels.
General notes
You can ask for information regarding permitted
emergency spare wheels at an authorized
Mercedes-Benz Center.
You should regularly check the pressure of the
emergency spare wheel, particularly prior to
long trips, and correct the pressure as neces-
sary (
Ypage 295). The value on the wheel is
valid.
An emergency spare wheel may also be moun-
ted against the direction of rotation. Observe
the time restriction on use as well as the speed limitation specified on the emergency spare
wheel.
Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel.
iWhen you are driving with the collapsible
spare wheel mounted, the tire pressure loss
warning system or the tire pressure monitor
cannot function reliably. Only restart the tire
pressure loss warning system or tire pressure
monitor when the defective wheel has been
replaced with a new wheel.
Vehicles with tire pressure monitor: after
mounting an emergency spare wheel, the sys-
tem may still display the tire pressure of the
removed wheel for a few minutes. The value
displayed for the mounted emergency spare
wheel is not the same as the current tire pres-
sure of the emergency spare wheel.
"Minispare" emergency spare wheel/
collapsible spare wheel
Opening the stowage well
The emergency spare wheel can be found in the
stowage well under the trunk floor.
XLift the trunk floor upwards (Ypage 247).
XRemove stowage space :.
Removing the "Minispare" emergency
spare wheel
XTurn stowage well;counter-clockwise and
remove it together with vehicle tool kit
tray :.
XRemove "Minispare" emergency spare wheel
=.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(
Ypage 313).
318Emergency spare wheel
Wheels and tires
Removing the collapsible spare wheel
(Mercedes-AMG vehicles)
The emergency spare wheel can be found in the
stowage well under the trunk floor.
XLift the trunk floor upwards (Ypage 247).
XReach into cutout :in the tool holder and lift
it up.
XRemove collapsible spare wheel ;.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(
Ypage 313).
Stowing a used collapsible spare
wheel
!
Only place the collapsible spare wheel in the
vehicle when it is dry. Otherwise, moisture
may get into the vehicle.
Take the following steps to stow a used collaps-
ible spare wheel. Otherwise, it will not fit into the
spare wheel well. Mercedes-Benz recommends
that you have this work performed at a qualified
specialist workshop, e.g. at an authorized
Mercedes-Benz Center.
XUnscrew the valve cap from the valve.
XUse the back of the valve cap to unscrew the
valve insert from the valve and release the air.
iFully deflating the tires can take a few
minutes.
XScrew the valve insert back into the valve.
XScrew the valve cap back on.
XRemove the protective sheet from the vehicle
tool kit and pull it over the collapsible spare
wheel.
XStow the collapsible spare wheel in the emer-
gency spare wheel well under the trunk.
Inflating the collapsible spare wheel
!
Inflate the collapsible spare wheel using the
tire inflation compressor before lowering the
vehicle. The wheel rim could otherwise be
damaged.
!Do not operate the tire inflation compressor
for longer than eight minutes at a time without
a break. It may otherwise overheat.
The tire inflation compressor can be operated
again once it has cooled down.
Comply with the manufacturer's safety instruc-
tions on the tire inflation compressor label and
on the tire sealant bottle.
XMount the collapsible spare wheel as descri-
bed (Ypage 313).
The collapsible spare wheel must be mounted before it is inflated.
XRemove the tire inflation compressor from
the stowage space under the trunk floor
(
Ypage 277).
XPull connector ?and the hose out of the
housing.
XRemove the cap from the valve on the col-
lapsible spare wheel.
XScrew union nut :of the hose onto the valve.
XMake sure on/off switch Aof the tire infla-
tion compressor is set to 0.
XInsert connector ?into a 12 V socket
(Ypage 253) in your vehicle.
XTurn the SmartKey to position 1in the ignition
lock (Ypage 123).
XPress on/off switch Aon the tire inflation
compressor to I.
The tire inflation compressor is switched on.
The tire is inflated. The tire pressure is shown
on pressure gauge =.
XInflate the tire to the specified tire pressure.
Emergency spare wheel319
Wheels and tires
Z
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
XWhen the specified tire pressure has been
reached, press on/off switchAon the elec-
tric air pump to 0.
The tire inflation compressor is switched off.
XTurn the SmartKey to position 0in the ignition
lock.
XIf the tire pressure is higher than the specified
pressure, press pressure release valve but-
ton ;until the correct tire pressure has been
reached.
XUnscrew air hose union nut :from the valve.
XScrew the cap onto the valve of the collapsi-
ble spare wheel again.
XStow connector ?and the hose in the lower
section of the tire inflation compressor.
XStow the tire inflation compressor in the vehi-
cle.
320Emergency spare wheel
Wheels and tires