Page 329 of 401

Flat tyre
3261
Wheel bolts for all wheels supplied by the
factory
X Clean the wheel and wheel hub contact
surfaces.
X Place the "Minispare"/collapsible emer-
gency spare wheel* or the spare wheel
onto the centring pin and push it on. X
Tighten the wheel bolts until they are fin-
ger-tight.
X Unscrew the centring pin.
X Tighten the last wheel bolt until it is finger-
tight.
Inflating the collapsible emergency
spare wheel* with the electric air pump G
Risk of accident
Pump up the collapsible emergency spare
wheel before lowering the vehicle, as you
could otherwise damage the wheel rim.
The electric air pump is located in the stow-
age well under the boot/luggage compart-
ment floor. X
Take the electric air pump out of the stow-
age well under the boot/luggage compart-
ment floor. 1
Flap
2 On/off switch
3 Electric connector with cable
4 Air pump hose with pressure gauge and
pressure release screw
5 Union nut
X Open flap 1.
X Pull connector 3and air hose 4out of
the housing.
X Make sure that the pressure release screw
on the pressure gauge is closed.
X Remove the cap from the valve on the tyre. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 326Dateiname: 6515_3416_02_buchblock.pdf; preflight
Page 330 of 401

Flat tyre
327
X
Screw union nut 5on air hose 4onto the
valve.
X Insert plug 3into the cigarette lighter
socket* ( Ypage 209) or into a 12V socket
in your vehicle (Y page 210).
X Make sure that the key is in position 2in
the ignition lock.
X Press on/off switch 2on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
X When a tyre pressure of 3.5 bar has been
reached, press 0on the electric air pump
switch.
The electric air pump is switched off.
! Do not operate the electric air pump for
longer than six minutes without a break.
Otherwise, it may overheat.
The air pump can be operated again once
it has cooled down.
If the tyre pressure is higher than 3.5 bar: X
Open the pressure release screw on the
pressure gauge until the tyre pressure is
correct.
X Disconnect the electric air pump and stow
it away.
Lowering the vehicle X
Lower the vehicle. To do this, turn the crank
of the jack anti-clockwise until the vehicle
is standing firmly on the ground again.
X Place the jack to one side. 1
–5 Wheel bolts
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indica-
ted ( 1to5). The tightening torque must
be 130 Nm . G
Risk of accident
Have the tightening torque checked imme-
diately after a wheel is changed. The wheels
could work loose if they are not tightened
to a torque of 130 Nm.
X Turn the jack back to its initial position and
store it and the rest of the vehicle tool kit
in the boot/luggage compartment.
Vehicles with the "Minispare"/collapsible
emergency spare wheel*:
X Pack the faulty wheel in the protective film
provided with the "Minispare"/collapsible
emergency spare wheel* and transport the
wheel in the boot/luggage compartment.
or
X Depending on the size of the wheel, you
may also be able to secure the faulty wheel
in the spare wheel well. In this case, you
will have to remove the stowage well casing
from the spare wheel well and stow it
securely in the boot/luggage compart-
ment.
i Do not activate the tyre pressure moni-
tor* until the deflated tyre has been
removed from the vehicle. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 327 ZDateiname: 6515_3416_02_buchblock.pdf; preflight
Page 331 of 401

Flat tyre
328 MOExtended run-flat system*
The MOExtended run-flat system must only
be used in conjunction with the tyre pressure
loss warning system or the tyre pressure
monitor*.
! The maximum permissible distance which
can be driven in run-flat mode depends on
the load in the vehicle. It is 50 km if the
vehicle is partially laden and 30 km if fully
laden.
The maximum range that can be driven in
emergency operation is measured from the
point at which the pressure loss warning
message appears in the multi-function dis-
play.
You must not exceed a maximum speed of
80 km/h.
i Vehicles featuring the MOExtended run-
flat system are not equipped with the
TIREFIT kit*.
It is therefore recommended to additionally
equip your vehicle with the TIREFIT kit*
when fitting tyres that do not feature run-
flat properties, e.g. winter tyres. i
A TIREFIT kit* is available from any quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre. G
Risk of accident
The handling characteristics of your vehicle
deteriorate in run-flat mode, for example:
R when cornering
R when braking
R when accelerating rapidly
Adapt your driving style accordingly and
avoid sudden changes in direction and sud-
den acceleration, as well as driving over
obstacles (i.e. kerbs, potholes), and driving
off-road. This is particularly the case when
the vehicle is heavily laden.
The maximum permissible distance that
can be driven in run-flat mode depends to
a large extent on the loads placed on the
vehicle. It can be shorter due to high
speeds, a heavy load, sudden acceleration
and/or manoeuvring, the road surface con-
dition, outside temperature, etc., or further
if you drive carefully and conservatively.
Do not continue to drive in run-flat mode if:
R you hear banging noises
R the vehicle starts to shake R
you see smoke and smell rubber
R ESP ®
is intervening constantly
R there are tears in the sidewalls of the tyre
After driving in run-flat mode, you must
have the rims checked for damage at a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. The faulty
tyre must be replaced in every case.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this
purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist work-
shop.
i On a vehicle with MOExtended tyres, only
MOExtended spare tyres should be used.
These must be of the size specified for the
vehicle. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 328Dateiname: 6515_3416_02_buchblock.pdf; preflight
Page 332 of 401

Battery
329Battery
Notes on the battery
In order for the battery to achieve the maxi-
mum possible service life, it must always be
sufficiently charged.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period.
To prevent damage from corrosion, only
replace the battery with one that has a central
ventilation cover.
Consult a Mercedes-Benz Service Centre if
you wish to leave your vehicle parked up for
a long period of time. G
Risk of injury
Comply with safety precautions and take
protective measures when handling batter-
ies. Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the bat-
tery. Avoid creating
sparks. Battery acid is caustic.
Avoid contact with the
skin, eyes or clothing.
Wear suitable protective
clothing, in particular
gloves, an apron and a
face mask.
Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary.
Wear eye protection.
Keep children away.
Observe this Owner's
Manual.
H
Environmental note
Do not dispose of batteries with the house-
hold rubbish. Dispose of defective batteries
in an environmentally responsible manner.
Take them to a Mercedes-Benz Service Centre or a special collection point for old
batteries.
G
Risk of injury
Mercedes-Benz recommends that, for
safety reasons, you only use batteries
which have been tested and approved for
your vehicle by Mercedes-Benz. These bat-
teries provide increased impact protection
to prevent vehicle occupants from suffering
acid burns should the battery be damaged
in the event of an accident.
To prevent acid burns, observe the follow-
ing safety notes when handling batteries:
R Do not lean over batteries.
R Do not place any metal objects on a bat-
tery. You could otherwise cause a short
circuit and the battery's highly flammable
gas mixture could ignite.
R Make sure that you do not create an elec-
trostatic charge, e.g. by wearing syn-
thetic clothing or as a result of friction on
fabrics. Therefore, you should not pull or
slide the battery over carpets or other
synthetic materials.
R Never touch the battery first. To dis-
charge a possible electrostatic charge, Practical advice
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4
2008-02-29T16:57:07+01:00 - Seite 329 ZDateiname: 6515_3416_02_buchblock.pdf; preflight
Page 333 of 401

Battery
330 step out of the vehicle first and touch the
bodywork.
R Do not wipe the battery using a cloth. The
battery may explode as a result of elec-
trostatic charge or due to flying sparks.
! Switch the engine off and remove the key
before unscrewing or disconnecting the
terminal clamps from the battery. You may
otherwise destroy electronic components
such as the alternator.
i Mercedes-Benz recommends that you
have all work involving the battery, e.g.
removing, charging and replacing, carried
out at a qualified specialist workshop, e.g.
a Mercedes-Benz Service Centre.
Installation location of the battery Your vehicle is equipped with a battery in the
boot. It is located under the cover in the spare
wheel well.
X Remove the luggage well (Y page 192). Saloon: battery in the boot
1
Electrostatic protection
2 Battery Saloon
1
Negative terminal
2 Positive terminal (under cover)
3 Cell cap 4
Breather hose
i On vehicles with a spare tyre*, the battery
is located in the recess on the right-hand
side. Estate: battery under the cover in the luggage com-
partment on the right-hand side
X
Pull the cover upwards and remove it. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 330Dateiname: 6515_3416_02_buchblock.pdf; preflight
Page 334 of 401

Battery
331Estate
1 Electrostatic protection
2 Battery Estate
1 Positive terminal (under cover)
2 Negative terminal
3 Cell cap 4
Breather hose
Electrostatic protection G
Risk of injury
Only use rechargeable batteries with elec-
trostatic protection fitted. The electrostatic
protection prevents the creation of sparks
due to electrostatic buildup, thereby pre-
venting the highly explosive mixture of
gases in the battery from igniting.
i You can obtain the electrostatic protec-
tion from any Mercedes-Benz Service
Centre.
X To remove: pull the electrostatic protec-
tion upwards and remove.
X To fit: push the electrostatic protection
firmly onto the battery. Disconnecting the battery
G
Risk of accident
If the battery is disconnected:
R the brake boosting effect will not be avail-
able. Greater braking force will then be
required and the brake pedal travel will
be longer. If necessary, depress the
brake pedal with maximum force.
R you can no longer turn the key in the igni-
tion and, on vehicles with KEYLESS
GO*, pressing the KEYLESS GO button*
will have no effect
R the selector lever is locked in position P
on vehicles with automatic transmis-
sion*
! Always disconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Firmly depress the parking brake and shift
the selector lever to position Pon vehicles
with automatic transmission*.
X Switch off all electrical consumers.
X Turn the key to position 0in the ignition
lock and remove it. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa
, Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 331 ZDateiname: 6515_3416_02_buchblock.pdf; preflight
Page 335 of 401

Battery
332
X
Open the boot/luggage compartment.
X Remove the cover (Y page 256).
X Remove the battery cover.
X Remove the negative terminal clamp from
the battery.
X Remove the cover from the positive termi-
nal clamp.
X Remove the positive terminal clamp from
the battery.
X Disconnect the breather hose. Removing the battery
Saloon X
Disconnect the battery ( Ypage 331).
X Loosen the bolt which holds the battery in
place.
X Release the strap and remove the battery. Estate 1
Spacer
2 Battery
3 Strap
X Disconnect the battery ( Ypage 331).
X Loosen the bolt which holds the battery in
place.
X Release strap 3and remove the battery.
X Remove spacer 1from the breather hose
on the battery. Charging and fitting the battery
G
Risk of injury
Only charge the battery in a well-ventilated
area. As the battery is being charged, gases
can escape and generate minor explosions.
This may injure you and other persons or
cause damage to the paintwork or acid cor-
rosion on the vehicle.
You can obtain information about battery
chargers which allow the battery to be
charged when still installed from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. G
Risk of injury
There is a risk of acid burns during the
charging process due to the gases which
escape from the battery. Do not lean over
the battery during the charging process.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while it is still installed. Otherwise, the vehi-
cle's electronic system may be damaged.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V. Practical advice
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 332Dateiname: 6515_3416_02_buchblock.pdf; preflight
Page 336 of 401

Jump-starting
333
X
Charge the battery. Observe the notes in
the operating instructions for your battery
charger.
X Refit the charged battery.
To do this, follow the steps described in
"Removing the battery" (Y page 332) in
reverse order.
! Do not fit refillable batteries without elec-
trostatic protection. The electrostatic dis-
charge could otherwise cause the battery
to explode. The battery acid released could
cause damage to your vehicle.
Further information on electrostatic protec-
tion (Y page 331). G
Risk of injury
Battery acid is caustic. Avoid contact with
the skin, eyes or clothing. Reconnecting the battery
! Always reconnect the battery in the
sequence described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers.
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose. Make sure that
a cell cap is fitted between the battery and
the breather hose.
X Refit the electrostatic protection if neces-
sary (Y page 331).
i If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R Set the time (Y page 135).
R Reset the sliding/tilting sunroof*
(Y page 182).
R Reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once (Y page 91). Jump-starting
Jump-starting your vehicle
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle or from an external battery using jump
leads.
Observe the following points:
R Jump-starting may only be performed when
the engine and catalytic converter are cold.
R Do not start the engine if the battery is fro-
zen. Let the battery thaw first.
R Jump-starting may only be performed from
batteries with a nominal voltage of 12 V.
R Only use jump leads which are protected
against polarity reversal and which have a
sufficient cross-section and insulated ter-
minal clamps.
i Jump leads which are protected against
polarity reversal and further information
about jump-starting can be obtained from
any Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts.
Never start the vehicle using a rapid battery
charger. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4
2008-02-29T16:57:07+01:00 - Seite 333 ZDateiname: 6515_3416_02_buchblock.pdf; preflight