Page 369 of 418

XSlide coverAof positive terminal :in the direction of the arrow.
XConnect positive terminal :on your vehicle to positive terminal ;of donor battery B
using 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 =of donor battery Bto ground point ?of your vehicle using
the jumper cable, connecting the jumper cable to donor battery Bfirst.
XStart the engine.
XBefore disconnecting the jumper cables, let the engine run for several minutes.
XFirst, remove the jumper cables from ground point ?and negative terminal =, then from
positive clamp :and positive terminal ;. Begin each time at the contacts on your own
vehicle first.
XClose cover Aof positive clamp :after removing the jumper cables.
XHave the battery checked at a qualified specialist workshop.
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.
Towing and tow-starting
Important safety notes
GWARNING
Functions relevant to safety are restricted or
no longer available if:
Rthe engine is not running.
Rthe brake system or the power steering is
malfunctioning.
Rthere is a malfunction in the voltage supply or the vehicle's electrical system.
If your vehicle is being towed, much more
force may be necessary to steer or brake.
There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely.
GWARNING
You can no longer steer the vehicle if the
steering wheel lock has been engaged. There
is a risk of an accident.
Always switch off the ignition when towing the
vehicle with a tow cable or a tow bar.
GWARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
Rthe towing eye could detach itself
Rthe vehicle/trailer combination could roll-
over.
There is a risk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per- missible gross weight of your vehicle.
Details on the permissible gross vehicle
weight of your vehicle can be found on the
vehicle identification plate (
Ypage 408).
!When COLLISION PREVENTION ASSIST
PLUS, DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes auto-
matically in certain situations. To avoid
damage to the vehicle, deactivate these
systems in the following or similar situa-
tions:
Rwhen towing the vehicle
Rin the car wash
Towing and tow-starting367
Breakdown assistance
Z
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!Make sure that the electric parking brake
is released. If the electric parking brake is
faulty, visit a qualified specialist workshop.
!Only secure the tow rope or tow bar at the
towing eyes, or the trailer tow hitch, if avail-
able. You could otherwise damage the vehi-
cle.
!Do not use the trailer tow hitch for recov-
ery or towing. Do not use the towing eye for recovery. this could damage the vehicle. If
in doubt, have the vehicle recovered using
a crane.
!When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
!Shift the automatic transmission to Nand
do not open the driver's or front passeng-
er's door during towing. The automatic
transmission may otherwise shift to posi-
tion P, which could damage the transmis-
sion.
!Do not tow with sling-type equipment.
This could damage the vehicle.
!The vehicle can be towed a maximum of
30 miles (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.
It is better to have the vehicle transported
than to have it towed away.
If the vehicle has suffered transmission dam-
age, have it transported on a transporter or
trailer.
The automatic transmission must be in posi-
tion Nwhen the vehicle is being towed. If the
automatic transmission cannot be shifted to
position N, have the vehicle transported on a
transporter or trailer. The battery must be connected and charged.
Otherwise, you:
Rcannot turn the SmartKey to position
2in
the ignition lock
Rcannot release the electric parking brake
Rcannot shift the automatic transmission to
position N
Disarm the automatic locking feature before
the vehicle is towed (
Ypage 90). You could
otherwise be locked out when pushing or
towing the vehicle.
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 front
and at the rear under covers :.
Vehicles with a trailer tow hitch do not have a
bracket for the screw-in towing eye at the
back. Connect the towbar to the trailer tow
hitch (
Ypage 228).
368Towing and tow-starting
Breakdown assistance
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XRemove thetowin geye from th eleft-han d
stowage well under th ecargo compartmen t
floor (
Ypage 355).
XPress th emar kon cover :inward sand
remove .
XScrew in th etowin geye clockwise as far as
it will go and tighten it .
Removingth etowing eye
XUnscrew and remove th etowin geye.
XAttac hcover :to th ebumper and press
until it engages.
XPut th etowin geye bac kinto th evehicl e
tool kit.
Towing a vehicle wit hbot haxles on
th egroun d
The automatic transmission automatically
shiftsto position Pwhen you open th edriver's
or front-passenger doo ror when you remove
th eSmartKey from th eignition lock. In order
to ensur ethat th eautomatic transmission
stays in position Nwhen towin gth evehicle,
you mus tobserv eth efollowin gpoints :
XMakesur ethat th evehicl eis stationary.
XTurn th eSmartKey to position 2in th eigni-
tion lock.
XDepress and hold th ebrak epedal .
XShift th eautomatic transmission to posi-
tion N.
XLeav eth eSmartKey in position 2in th e
ignition lock.
XReleas eth ebrak epedal .
XReleas eth eelectric parkin gbrake.
XSwitc hon th ehazard warnin glamp s
(
Ypage 127).
In order to signal achang eof direction when
towin gth evehicl ewit hth ehazard warnin g
lamp sswitched on ,use th ecombination
switch as usual. In this case, only th eindica-
to rlamp sfor th edirection of travel flash. Afte
rresetting th ecombination switch ,th e
hazard warnin glamp start sflashin gagain .
Transporting th e vehicle
4MATIC vehicles/vehicles wit hauto-
mati ctransmission
!Whe nth evehicl eis loade dfor transport,
th efron tand rear axles mus tbe stationary
and on th esam etransportation vehicle.
Positionin gove rth econnection poin tof th e
transpor tvehicl eis no tpermitted. The drive
train may otherwise be damaged.
All vehicles
!You may only secure th evehicl eby th e
wheels, no tby part sof th evehicl esuc has
axl eor steerin gcomponents. Otherwise ,
th evehicl ecould be damaged.
The towin geye or trailer to whitch can be
used to pull th evehicl eonto atrailer or trans -
porte rif you wish to transpor tit.
XTurn th eSmartKey to position 2in th eigni-
tion lock.
XShift th eautomatic transmission to posi-
tion N.
As soon as th evehicle ha sbeen loaded:
XPreven tth evehicl efrom rollin gaway by
applyin gth eelectric parkin gbrake.
XShift th eautomatic transmission to posi-
tion P.
Towing and tow-starting369
Breakdown assistance
Z
Page 372 of 418

XTurn the SmartKey to position0in the igni-
tion 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 loa- ded 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
system: if the battery is defective, the auto-
matic transmission will be locked in position
P. To shift the automatic transmission to posi-
tion N, you must provide power to the vehi-
cle's electrical system in the same way as
when jump-starting (
Ypage 365).
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 other-
wise damage the automatic transmission.
iYou can find information on "Jump-start-
ing" under (
Ypage 365).
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 specifiednew 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.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
cialist 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 sys-
tems could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
Before changing a fuse
Observe the important safety notes
(
Ypage 370)
XSecure the vehicle against rolling away
(
Ypage 172).
XSwitch off the engine.
XSwitch off all electrical consumers.
XRemove the SmartKey from the ignition
lock.
or, in vehicles with KEYLESS-GO start-func-
tion or KEYLESS ‑GO
XOpen the driver's door.
The on-board electronics now have status
0. This is the same as the SmartKey having
been removed.
The driver’s door can be closed again.
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes:
RFuse box on the driver's side of the dash-
board
RFuse box in the front-passenger footwell
370Fuses
Breakdown assistance
Page 373 of 418

RFuse box in the engine compartment on thedriver's side
RFuse box under the cargo compartment
floor on the right-hand side of the vehicle,
when viewed in the direction of travel
The fuse allocation chart is on the fuse box in
the cargo compartment (
Ypage 372).
Dashboard fuse box
!
Do not use a pointed object such as a
screwdriver to open the cover in the dash-
board. You could damage the dashboard or
the cover.
!Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
XOpen the driver's door.
XTo open: pull out cover :slightly at the
bottom in the direction of arrow =.
XFold cover:outwards in the direction of
arrow ;.
XTo close: fold in cover :until it engages.
Fuse box in the front-passenger foot-
well
!
Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
XOpen the front-passenger door.
XTo open: fold cover :out towards the rear
and remove it.
XTo close: clip in cover :at the rear.
XFold cover :forwards until it engages.
Fuse box in the engine compartment
GWARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
!Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
Fuses371
Breakdown assistance
Z
Page 374 of 418

Fuse box cover (example)
XOpen the hood.
XTo open:press safety clips :on the cover
together.
XRemove fuse box cover ;upwards.
Fuse box in the engine compartment (exam-
ple)
XUse a dry cloth to remove any moisture
from the fuse box.
XLoosen screws =, fold up fuse box lid ?
and remove it.
XTo close: check whether the seal is posi-
tioned correctly in the lid ?.
XInsert lid?into the bracket at the rear of
the fuse box.
XFold down lid ?of the fuse box and tighten
screws =.
Fuse box cover (example)
XInsert cover ;on both sides and engage
safety clips :.
XClose the hood.
Fuse box in the cargo compartment
!
Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
XOpen the tailgate.
XLift the cargo compartment floor upwards
(
Ypage 316).
XTo open: release cover at the top and open
it : downwards in the direction of the
arrow.
XTo close: fold down cover :in the oppo-
site direction to the arrow and close the
Velcro fastener.
Make sure that the cover is in the recess
provided for it.
iThe fuse allocation chart is located in a
recess at the side of the fuse box. You can
find the corresponding fuse rating and fuse
type on the fuse allocation chart.
372Fuses
Breakdown assistance
Page 375 of 418
Useful information............................374
Important safety notes .....................374
Operation ........................................... 374
Winter operation ............................... 376
Tire pressure ..................................... 377
Loading the vehicle ..........................384
All about wheels and tires ...............387
Changing a wheel .............................. 395
Wheel and tire combinations ...........399
373
Wheels and tires
Page 376 of 418

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 27).
Important safety notes
GWARNING
If wheels and tires of the wrong size are used, the wheel brakes or suspension components
may be damaged. There is a risk of an acci-
dent.
Always replace wheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
Rdesignation
Rmodel
When replacing tires, make sure to use the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWARNING
A flat tire severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tires without run-flat characteristics:
Rdo not drive with a flat tire.
Rimmediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tires with run-flat characteristics:
Rpay attention to the information and warn-
ing notices on MOExtended tires (tires with
run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benz or are not being
used correctly can impair the operating
safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and inquire about:
Rsuitability
Rlegal stipulations
Rfactory recommendations
Information on the sizes and types of wheels
and tires for your vehicle can be found under "Wheel/tire combinations" (
Ypage 399).
Information on tire pressure can be found:
Ron the Tire and Loading Information placard
on the B-pillar on the driver's side
(
Ypage 384)
Rin the tire pressure table in the fuel filler flap
(
Ypage 170)
Runder "Tire pressure" (Ypage 377)
Operation
Information on driving
Check the tire pressure when the vehicle is
heavily laden and adjust prior to a trip.
While driving, pay attention to vibrations,
noises and unusual handling characteristics,
e.g. pulling to one side. This may indicate that
the wheels or tires are damaged. If you sus-
pect that a tire is defective, reduce your
speed immediately. Stop the vehicle as soon
as possible to check the wheels and tires for
damage. Hidden tire damage could also be
causing the unusual handling characteristics.
If you find no signs of damage, have the tires
and wheels checked at a qualified specialist
workshop.
374Operation
Wheels and tires