
RThe jumper cable/charging cable must not
come into contact with any parts which may
movewhen the engine is running.
RAlw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
RKe ep away from fire and open flames.
RDo not lean overth e batter y.
RWhencharging: only use battery charge rs
te sted and appr oved byMercedes-Benz and
re ad the battery charge r's operating instruc‐
tions before charging the batter y.
Obser vethe additional following points during
st arting assis tance:
RSt arting assis tance may only be pr ovided
using batteries with a nominal voltage of 12
V.
RThe vehicles must not touch.
RGa soline engine: Onlyaccept starting assis‐
ta nce if the engine is cold and theex haust
sy stem has cooled down.
#Secure theve hicle byapplying the electric
parking brake.
#Au tomatic transmission: Shiftthe trans‐
mission toposition j.
#Make sure that the ignition and all electrical
consumers are switched off.
#Open the hood.
#Slide co ver1 of positive clamp 2onthe
jump-s tarting connection point in the direc‐
tion of the ar row.
#Connect positive clamp 2onyour vehicle to
th e positive pole of the donor battery using
th e jumper cable/charging cable. Alw ays
begin with positive clamp 2onyour ow n
ve hicle firs t.
#Du ring thest arting assist ance proce‐
dure: start the engine of the donor vehicle
and run at idle speed.
#Connect the negative pole of the donor bat‐
te ry and ground po int3 ofyour ow nve hicle
using the jumper cable/charging cable.
Begin with the donor battery firs t.
#Du ring starting assist ance:start the
engine of your ow nve hicle.
#During thech arging process: start the
ch arging process.
#During starting assist ance:letthe engines
ru nfo r se veral minutes.
#During starting assist ance:before discon‐
necting the jumper cable, switch on an elec‐
trical consumer on your ow nve hicle, e.g. the
re ar wind owheater or lighting.
328
Breakdown assis tance

%Vehicles with automatic transmission: If
th e automatic transmission cannot be shif‐
te dto position i, transport theve hicle
(
→page 332). A towing vehicle with lifting
equipment is requiredforve hicle transport.
* 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.
#A towing speed of 31mp h (50 km/h)
must not be exceeded.
#Atowing dis tance of 31miles (50 km)
must not be exceeded.
&
WARNING Risk of accident when towing
a ve hicle which is too heavy
If th eve hicle being tow- star ted or towe d
aw ay is heavier than the permissible gross
mass of your vehicle, thefo llowing situations
can occur:
RThe towing eye may become de tach ed.
RThe vehicle/trailer combination may
swer veoreve nov erturn.
#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 ow n
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 .
#Ve hicles with automatic transmission: Do
not open the driver's door or front passenger
door, otherwise the automatic transmission
automatically shifts toposition j.
#Installth eto wing eye (→page 334).
#Attach theto w bar.
* NO
TEDama gedue toincor rect connec‐
tion
#Only connect theto w rope or tow bar to
th eto wing eyes.
#Deactivate the automatic locking mechanism
(→page 62).
#Do not activate the HOLD function.
#Deactivate Active Brake Assi st(→page 159).
#Ve hicles with automatic transmission:
Shift the automatic transmission toposition
i.
#Re lease the electric parking brake.
Breakdown assis tance 331

&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:
Rth e ignition is switched off.
Rthe brake sy stem or po werst eering sys‐
te m is malfunctioning.
Rth e 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 we r
Ifyo 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 330).
#Connect theto w bar totheto wing eyeto
load theve hicle.
#Ve hicles with automatic transmission:
Shift the automatic transmission toposition
i.
% Ve
hicles with automatic transmission:
The au tomatic transmission may be loc ked
in position jintheeve nt of damage tothe
electrics. Toshift toi, pr ovide the on-
board electrical sy stem with po wer
(
→page 326).
#Load theve hicle onto the transpor ter.
#Ve hicles with automatic transmission:
Shift the automatic transmission toposition
j.
#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,yo u
could lose control of your vehicle.
There is a risk of accident and injur y.
332
Breakdown assis tance

Setting upthefo lding wheel chock
Prepa ring theve hicle for a wheel change
Re quirementsRThe requ ired tire-change tool kit is available.
If yo ur vehicle is not equipped with the tire-
ch ange tool kit, consult a qualified specialist
wo rkshop tofind out about suitable tools.
RThe vehicle is not on a slope.
RThe vehicle is on solid, non-slippery and le vel
ground .
#Applythe electric parking brake manually.
#Bring the front wheels into thest ra ight-ahead
position.
#Ve hicles with automatic transmission:
Shift into position j.
#Vehicles with AIR BODY CONT ROL:Set the
normal vehicle le vel (→page 174).
#Switch off the engine.
#Make sure that the engine cannot bestar ted.
#Place choc ks orother suitable items under
th e front and rear of the wheel that is diago‐
nally opposite the wheel youwish tochange.
#Re mo vethe hub caps if necessary
(→page 362).
#Ra ise theve hicle (→page 363).
Re moving and mounting hub caps
Requirements
#The vehicle is prepared for a wheel change
(→page 362).
Plast ic hub cap
#Toremo ve:turn the center co ver of the hub
cap counter-clockwise and remo vethe hub
cap.
#To mount: makesurethat the center co ver
of the hub cap is turned counter-clockwise.
#Po sition the hub cap and turn the center
co ver clockwise until the hub cap engages
ph ysically and audibly.
362
Wheels and tires

Aluminum hub cap
#Toremo ve:position soc ket2 on hub cap
1.
% The soc ket can be found inthe tire-change
to ol kit.
#Po sition wheel wrench 3on soc ket2.
#Using wheel wrench 3, turn hub cap1
counter-clo ckwise and remo veit.
#To mount: position hub cap 1and turn
until it is compl etely flush withth e wheel.
#Po sition soc ket2 on hub cap 1.
#Attach wheel wrench 3tosoc ket2 and
tighten the hub cap clockwise.
Specified tightening torq ue: 18lb-ft
(25 Nm).
#Ra ise theve hicle (→page 363).
Ra ising theve hicle when changing a wheel
Re quirementsRThere are no persons in theve hicle.
RThe vehicle is prepared for a wheel change
(→page 362).
RThe hub caps ha vebeen remo ved
(→page 362).
Impor tant no tes on using the jack:
ROnly use theve hicle-specific jack that has
been tested and appr ovedby Mercedes-Benz
to raise theve hicle.
RThe jack is only designed forra ising and
holding theve hicle for a short time while a
wheel is being changed and not for mainte‐
nance workunder theve hicle.
RThe jack must be placed on a firm ,fl at and
non-slip sur face. If necessar y,use a lar ge,
load-bearing, non-slip underla y.
RThe base ofthe jack must be positioned ver‐
tically under the jack support point.
Ru les of conduct when theve hicle is raised:
RNe ver place your hands or feet under the
ve hicle.
RDo not lie under theve hicle.
RDo not start the engine and do not release
th e parking brake.
RDo not open or close any doors or the trunk
lid.
Wheels and tires 363