
#
During thest arting assi stance proce‐
dure: start the engine of the donor vehicle
and run at idle speed. #
Connect the negative pole of the donor vehi‐
cle and ear thpoint 3ofyour ow nve hicle by
using the jump lead/charging cable. Begin
with the donor battery firs t. #
During starting assi stance: start the
engine of your ow nve hicle. #
During thech arging process: start the
ch arging process. #
During starting assi stance: letthe engines
ru nfo r se veral minutes. #
During starting assi stance: before discon‐
necting the jump lead, switch on an electrical consumer on
your ow nve hicle, e.g. there ar
wind owheater or lighting.
When thest arting assis tance/charging process
is compl ete: #
First,re mo vethe jump lead/charging cable
from ear thpoint 3and negative pole of the
donor vehicle, then from positive clamp 2
and positive pole of the donor vehicle. Begin
each time with the conta cts onyour own
ve hicle firs t. #
Afterre moving the jump lead/charging
cable, close co ver1 of positive clamp 2.
Yo u can obtain fur ther information on starting
assis tance at any qualified specialist workshop. To
w starting or towing away Pe
rm itted towing me thods Plug-in
hybrid: obser vethe no tes on the permit‐
te dto wing me thods in the separate Owner's
Manual.
Mercedes-Benz recommends transporting your
ve hicle in the case of a breakdown, rath er than
to wing it away.
* NO
TEDama getotheve hicle due to tow‐
ing away incor rectly #
Obser vethe instructions and no tes on
to wing away. 392
Breakdown assis tance

Pe
rm itted towing me thods Bo
th axles on thegr ound Fr
ont axle raised Re
ar axle raised
Ve hicles with manual transmission Yes, maximum 50 km at 50 km/h Yes, maximum 50 km at 50 km/h Yes, maximum 50 km at 50 km/h
Ve hicles with automatic transmis‐
sion Ye
s, maximum 50 km at 50 km/h No Yes if thesteering wheel is fixe d in
th e cent reposition with a steering
wheel loc k.
4MATIC vehicles Yes, maximum 50 km at 50 km/h No NoTo
wing with a raised axle: towing should be
per form ed byato wing compan y. To
wing theve hicle with bo thaxles on the
gr ound #
Obser vethe no tes on the permitted towing
me thods (→ page 392) (→ page 393). #
Make sure that the battery is connected and
ch arge d.
When the battery is dischar ged:
R the engine cann otbe star ted.
R the electric parking brake cann otbe released
or applied. R
vehicles with automatic transmission: the
automatic transmission cannot be shif tedto
position iorj.
% Vehicles with automatic transmission: if
th e automatic transmission cann otbe shif‐
te dto position i, transport theve hicle
(→ page 395). A towing vehicle with lifting
equipment is requiredforve hicle transport. Breakdown assis
tance 393

*
NO
TEDama gedue to to wing away at
exc essively high speeds or over long dis‐
ta nces The driv
etra in could be damaged when tow‐
ing at excessively high speeds or over long
dis tances. #
Atowing speed of 50 km/h must not
be exc eeded. #
Atowing dis tance of 50 km must not be
exc eeded. &
WARNING Risk of accident when towing
a ve hicle which is too heavy
If th eve hicle being tow- star ted or towed
aw ay is heavier than the permissible gross
mass, thefo llowing situations can occur:
R theto wing eye may become de tach ed.
R the car/t railer combination may swer ve
or eve nove rturn. #
If ano ther vehicle is tow- star ted or
to we daw ay, its weight must not exceed th
e permissible gross mass of your own
ve hicle. If a
vehicle must be tow- star ted or towe daw ay,
its weight must not exceed the permissible gross
mass of theto wing vehicle. #
Information on the permissible gross mass of
th eve hicle can be found on theve hicle iden‐
tification plate . #
Vehicles with automatic transmission: do
not open the driver's door or front passenger
door, otherwise the automatic transmission
automatically shifts toposition j. #
Fittheto wing eye (→ page 397). #
Attach theto w bar.
* NO
TEDama gedue toincor rect connec‐
tion #
Only connect theto w rope or tow bar to
th eto wing eyes. %
You can also attach theto w bar tothe trailer
hitch. #
Deactivate the automatic locking mechanism
(→ page 71). #
Do not activate the HOLD function. #
Deactivate tow- aw ay protection (→ page 89). #
Deactivate Active Brake Assi st (→page 189). #
Vehicles with automatic transmission:
shift the automatic transmission toposition
i. #
Vehicles with manual transmission: shift
to neutral i. #
Release the electric parking brake. #
Vehicles with manual transmission:
switch on the ignition, otherwise thesteering
wheel locking may engage. &
WARNING Risk of accident due tolimi‐
te d saf ety-re lated functions during the
to wing process
Saf ety-re lated functions are limited or no lon‐
ge rav ailable in thefo llowing situations:
R the ignition is switched off. 394
Breakdown assis tance

R
the brake sy stem or po werst eering sys‐
te m is malfunctioning.
R the energy supply or the on-board electri‐
cal sy stem is malfunctioning.
When your vehicle is then towe daw ay, signif‐
icantly more ef fort may be requ ired tosteer
and brake than is no rmally requ ired. #
Use a tow bar. #
Make sure that thesteering wheel can
mo vefreely, before towing theve hicle
aw ay. *
NO
TEDama gedue toexcessive tracti ve
po wer If
yo u pull away sharpl y,the tractive po wer
may be too high and theve hicles could be
damaged. #
Pull away slowly and smoo thly. Loading the
vehicle for transport #
Obser vethe no tes on towing away
( → page 393). #
Connect theto w bar totheto wing eyeto
load theve hicle.
% You can also attach theto w bar tothe trailer
hitch. #
Vehicles with automatic transmission:
shift the automatic transmission toposition
i.
% Ve
hicles with automatic transmission:
th e automatic transmission may be loc ked in
position jintheeve nt of dama getothe
electrical sy stem. Toshift toi , pr ovide the
on-board electrical sy stem with po wer
( → page 389). #
Vehicles with manual transmission: shift
to neutral. #
Load theve hicle onto the transpor ter. #
Vehicles with automatic transmission:
shift the automatic transmission toposition
j. #
Vehicles with manual transmission:
engage firs t or reve rsege ar. #
Use the electric parking brake tosecure the
ve hicle and pr event it from rolling away. #
Only secure theve hicle bythe wheels.
Ve hicles with ADS PLUS (Adaptive Damping
Sy stem PLUS) &
WARNING Risk of accident when trans‐
porting vehicles with AIR BODY CON‐
TROL
The reduced damping forc es on theve hicle
being transpor ted can cause theve hicle/
trailer combination tostart toswing.
As a result, when transporting vehicles with
AIR BODY CONTROL theve hicle/trailer com‐
bination may start toskid. Consequentl y,you
could lose control of your vehicle.
There is a risk of accident and injur y. #
Load theve hicle cor rectly onto the
transpo rter. Breakdown assis
tance 395

Fi
tting the towing eye #
Press the mark on co ver1 inwa rds and
re mo ve. #
Screw intheto wing eyeclockwise tothe
st op.
Ve hicles with a trailer hitch: vehicles with a
trailer hitch do not ha vea brac ket at the back forth
eto wing eye. Connect theto w bar tothe
trailer hitch.
% Makesure that co ver1 engages in the
bumper when youre mo vetheto wing eye.
* NO
TEDama gedue toincor rect use of
th eto wing eye When a
towing eye is used toreco ver a vehi‐
cle, theve hicle may be damaged in the proc‐
ess. #
Only use theto wing eyeto to waw ay or
to w start theve hicle. To
w- starting theve hicle (eme rgency engine
st art) Ve
hicles with automatic transmission
* NO
TEDama getothe automatic trans‐
mission due to 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- star ted. #
Vehicles with automatic transmission must
not be tow- star ted.
Ve hicles with manual transmission #
Obser vethe no tes on towing away
( → page 393). #
If necessar y,allow the engine and exhaust
sy stem tocool down. #
Switch the ignition on. #
Enga gesecond gear. #
Release the electric parking brake. #
Tow- start theve hicle while the clutch pedal
is fully depressed. #
Slowly release the clutch pedal. #
Immediately shift toneutral if the engine
st arts. #
Pull over and stop theve hicle safely as soon
as possible, paying attention toroad and traf‐
fi c conditions. Breakdown assis
tance 397

The tyre pressure loss
warning sy stem does not
re place the need toregularly check the tyre
pressures.
Sy stem limitations
The tyre pressure loss warning sy stem does not
issue a warning:
R Ifth e tyre pressure is set incor rectl y.
R Ifth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tyre.
R Ifth e pressure loss in se veral tyres decrea‐
ses at the same rate.
The tyre pressure loss warning sy stem has a
limited or dela yed function:
R When thero ad sur face is poo r,e.g. snow or
gr ave l.
R When driving with snow chains.
R When driving in a very sporty driving style
with high cornering speeds or sudden accel‐
eration.
R When towing a very heavy or large trailer.
R When driving with a high load. Be sure
toalso obse rveth efo llowing fur ther
re lated subjects:
R Display messages about the tyres
(→ page 473)
R Notes on tyre pressure (→ page 402)
Rest arting the ty repressure loss warning
sy stem
Requ irements:
R The recommended tyre pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (→ page 402).
On-board co mputer:
, Service .
Tyre pressure
The Run Flat Indicator active Restart with OK
message is shown in the multifunction displa y.
Re start the tyre pressure loss warning sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. #
Press atobegin the new start.
The Tyre pressure now OK? message is
shown in the multifunction displa y. #
Select Yes. #
Press atoconfirm there start.
The Run Flat Indicator restarted message is
shown in the multifunction displa y.
Af teryo u ha vedriven for a few minutes, the
tyre pressu reloss warning sy stem monitors
th e set tyre pressures of all the tyres.
Make sure you also obse rveth efo llowing related
subjects:
R Notes on tyre pressure (→ page 402) Wheel
change Note
s on selecting, fitting and replacing
tyres Yo
u can ask for information rega rding permit ted
wheel/tyre combinations at a Mercedes-Benz
Service Cent re. Wheels and tyres
409

*
NO
TERisk todriving saf ety from retrea‐
ded tyres Re
treaded tyres are nei ther tested nor rec‐
ommended byMercedes-Benz, since pr evi‐
ous damage cannot alw ays be de tected on
re treaded tyres.
Fo rth is reason driving saf ety cannot be guar‐
anteed. #
Do not use used tyres if you ha veno
information about their pr evious usage. *
NO
TEPossible damage towheels or
tyres when driving over obs tacles Lar
gewheels ha vea lo wer tyre section width.
The lo werth e tyre section width, the greater
is therisk of damage towheels or tyres when
driving over obs tacles. #
Avoid obs tacles or drive pa rticular ly
carefully. *
NO
TEDama getoelectronic component
parts from the use of tyre-fitting tools Ve
hicles with a tyre pressure monitoring
sy stem: electronic component parts are
located in the wheel. Tyre-fitting tools should
not be applied in the area of theva lve.
The tools could damage the electronic com‐
ponent parts. #
Have the tyres changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures Using summer tyres at
very low ambient
te mp eratures can cause crac kstoform,
th ereby damaging the tyres permanentl y. #
Attemp eratures below 7 °C use M+S-
tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or that are not being
used cor rectly can impair ope rating sa fety. Before pu
rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tyres
The special tyre tread in combination with
th e optimised tyre compound, means that
th erisk of skidding or hydroplaning on wet
ro ads is inc reased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use M+S tyres at outside temp eratures
of less than 50 °F. Wheels and tyres
411

Note
s ontech nical data
Plug-in hybrid: make sure that youre ad the
separate Owner's Manual. Otherwise, you may
fa ilto recognise dangers.
The tech nical da tawa s de term ined in accord‐
ance with EU Directives. The data stated on ly
applies tovehicles with standard equipment. Yo u
can obtain fur ther information from a Mercedes-
Benz Service Centre.
Only for ce rtain countries: you can find vehi‐
cle-specific vehicle data in the COC documents
(CERTIFIC ATE OF CONFORMITY). These docu‐
ments are deli vered with your vehicle. On-board electronics
Note
s on tampering with the engine elec‐
tronics *
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance may cause
vehicle
components towe ar more quickly and the ve
hicle's operating permit may be in valida‐
te d. #
Alw ays ha vewo rkon the engine elec‐
tronics and related components car ried
out at a qualified specialist workshop. Tw
o-w ayradios Note
s on installing two-w ayradios &
WARNING Risk of accident caused by
ta mp ering with the RF transmit ter
The electromagnetic radiation from RF trans‐
mitters may inter fere with theve hicle elec‐
tronics if RF transmitters are tamp ered with
or not cor rectly retrofitted.
This could jeopa rdise the operating saf ety of
th eve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop. &
WARNING Risk of accident from incor‐
re ct ope ration of the RF transmit ter
If yo u operate RF transmit ters incor rectly in
th eve hicle, the electromagnetic radiation
could inter fere with the on-board electronics,
e.g.:
R ifth e RF transmit ter is not connected to
an exterior aerial
R ifth eex terior aerial is not cor rectly
mounted or is not of low reflection
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-reflection exterior aerial
fi tted at a qualified specialist workshop. #
When operating RF transmitters in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior aerial. Te
ch nical da ta421