service MERCEDES-BENZ E-CLASS COUPE 2011 Repair Manual

R
Jack
R Centrin gpin
R On ep air of gloves
R Whee lwrench
R Towin geye "Minispare" emergency spare wheel
The "Minispare" emergency spar ewheel can
be foun dinthestowage well unde rthe boot
floor.
X Lift the boot floor upwards (Y page 268).X
Remove vehicle tool kit tray ;.
X Turn stowage well =anti-clockwise and
remove it.
X Remove "Minispare" emergency spare
wheel :.
For further information on changing awheel
and fittingt he spare wheel, see
(Y page 296). Flat tyre
Preparing the vehicle
Your vehicle may be equipped with:
R aT IREFIT kit
R an emergency spare wheel
R MOExtended tyres (tyres with run-flat char-
acteristics) (Y page 305)
i Vehicle preparation is not necessary on
vehicles with MOExtended tyres. i
Vehicles with MOExtended tyres are not
equipped with aTIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally equip your vehicle with aTIREFIT kit
if you fit tyres that do not feature run-flat
properties, e.g. winter tyres. ATIREFIT kit
can be obtained from aMercedes-Benz
Service Centre.
X Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Firmly depress the parking brake.
X Bring the front wheels into the straight-
ahead position.
X Vehicles with manualt ransmission:
engage first or reverse gear.
X Vehicles with automatic transmission:
move the selector lever to P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronicsh ave status0,
which is the same as the key having been
removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 147).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area whilst awheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic conditionsw hen doing so.296
Flat tyreBreakdown assistance

X
Close th edriver' sdoor.
X Plac ethe warning triangle ( Ypage 294) a
suitable distanc eaway. Observ elegal
requirements. TIREFIT kit
Using th eTIREFIT kit You can use th
eTIREFI Tkit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT at outside temperatures
down to -2 0†. G
WARNING
In the followin gsituations ,your safety is at
particular risk as tyre sealant is unable to pro-
vide sufficient breakdown assistance:
R there are cuts or punctures in the tyre
greater than 4mm.
R the wheel rim is damaged.
R you have driven at very low tyre pressures
or on aflat tyre.
Do not drive any further. Consult aqualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop.
X Do not remove any foreign object swhich
have penetrated the tyre, e.g. screws or
nails.
X Remove the tyre sealant bottle, the accom-
panying "max. 80 km/h" sticker and the
tyre inflation compressor from the stowage
well underneath the boot floor
(Y page 295). X
Affix part :of the sticker within the driv-
er's field of vision.
X Affix part ;of the sticker near the valve
on the wheel with the defectiv etyre. G
WARNING
TIREFIT must not come into contact with your
skin, eyes or clothing.
R If TIREFIT comes into contact with your
eyes or skin, immediately rinse thoroughly
with clean water.
R Change out of clothin gwhich has come into
contact with TIREFIT immediately.
R If an allergic reaction occurs, consult adoc-
tor immediately.
Keep TIREFIT away from children.
R If TIREFIT is swallowed, immediately rinse
your mouth out thoroughly and drink plenty
of water.
R Do not induce vomiting. Consult adoctor
immediately.
R Do not inhale TIREFIT fumes.
i If TIREFIT leaks out, allow it to dry. It can
then be removed like alayer of film.
If you get TIREFIT on your clothing, have it
cleaned as soon as possible with perchloro-
ethylene.
Your vehicle is provided with one of two dif-
ferent tyre inflation compressors:
R Version 1: the hose with the pressure
gauge and the cable are behind aflap.
R Version 2: the pressure gauge is in the tyre
inflation compressor. Flat tyre
297Breakdown assistance Z

mends that you use
aMercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at aqualified spe-
cialist workshop.
Tyre pressure of 180 kPa (1.8 bar/
26 psi) is reached X
Press the on/off switch on the tyre inflation
compresso rto0.
The tyre inflation compressor is switched
off.
X Unscrew the filler hose from the valve of
the faulty tyre.
! After use, excess TIREFIT may run out of
the filler hose. This may cause stains.
Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit.
X Stow the tyre sealant bottle, the tyre infla-
tion compressor and the warning triangle.
X Pull away immediately. G
WARNING
Do not exceed the maximum speed of
80 km/h.
The "max. 80 km/h" label must be affixed in
the driver's field of vision.
The vehicle's handling characteristics may be
affected.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the tyre inflation compressor. G
WARNING
If the tyre pressure is less than 130 kPa
(1.3 bar/20 psi), the tyre is too severely dam-
aged. Do not drive any further. Consult a
qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required. Mercedes-Benz
recommends that you use aMercedes-Benz
Service Centr efor this purpose. In particular,
work relevant to safety or on safety-related systems must be carried out at
aqualified
specialist workshop.
X Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/20 psi) (for the values,
see the fuel filler flap).
X To increase the tyrep ressure: switch on
the tyre inflation compressor. TIREFI
Tkit version 1
X To reduce the tyrep ressure (version
1): open pressure release screw Fon
pressure gauge G. TIREFI
Tkit version 2
X To reduce the tyrep ressure (version
2): press pressure release button Enext
to pressure gauge F.
X Stow the tyre sealant bottle, the tyre infla-
tion compressor and the warning triangle.
X Driv etot he nearest workshop and have the
tyre changed there.
X Have the tyre sealant bottle replaced as
soon as possible at aqualified specialist 300
Flat tyreBreakdown assistance

workshop
,e.g.ataM ercedes-Benz Service
Centre. H
Environmental note
Have the used tyre sealant bottle disposed of
professionally, e.g. at aMercedes-Benz
Service Centre.
X Have the tyre sealant bottle replaced every
four years at aqualified specialist work-
shop, e.g. aMercedes-Benz Service
Centre. Changing
awhee land fitting the spare
wheel
Preparing the vehicle G
WARNING
The wheel and tyre size of the emergency
spare wheel/spare wheel may diffe rtothat of
the damaged wheel. When using an emer-
gency spare wheel/spare wheel the handling
characteristics of the vehicle may change.
Adapt your style of driving accordingly.
Never operate the vehicle with more than one
emergenc yspare wheel/spare wheel that dif-
fers in size.
Only use an emergenc yspare wheel/spare
wheel of adiffering size briefly and do not
switch off ESP ®
.
When using an emergenc yspare wheel you
must not exceed the maximum speed of
80 km/h. G
WARNING
Have the emergenc yspare wheel/spare
wheel replaced with anew wheel as soon as
possible at aqualified specialist workshop
which has the necessary specialist knowledge
and tools to carry out the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop. i
Vehicles without an emergenc yspare
wheel/spare wheel are not equipped with
wheel-changing tools at the factory. For
more information on which tools are
required to perform awheel change on your
vehicle, e.g. wheel chock,w heel wrench or
centring pin, consult aMercedes-Benz
Servic eCentre.
X Prepare the vehicle as described
(Y page 296).
X Ifat railer is coupled to the vehicle, uncou-
ple it.
X Remove the following items (depending on
the vehicle's equipment) from the stowage
well under the boot floor:
R
the emergenc yspare wheel
R the vehicle tool kit
R the folding wheel chock
R the jack
X Secure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away If your vehicle is equipped with
awheel chock,
it can be found in the vehicle tool kit
(Y page 295).
The folding wheel chock is an additional
securing measure to prevent the vehicle from
rolling away,f or example when changing a
wheel. Flat tyre
301Breakdown assistance Z

Fitting
anew wheel G
WARNING
Replac edamage dorcorrode dwheel bolts.
Never oil or greas ewheel bolts. This could
cause th eboltstol oosenint he wheel hub. G
WARNING
If aw heel hub thread is damaged, you must
not drive the vehicle any further. Consult a
qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required. Mercedes-Benz
recommends that you use aMercedes-Benz
Service Centr eorService 24h for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop. G
WARNING
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. Other wheel bolts could
work loose or damage the brake system.
Do not tighten the wheel bolts completely
while the vehicle is still jacked up. The vehicle
could topple off the jack.
X Clean the wheel and wheel hub contact
surfaces. X
Slide the emergency spare wheel ontot he
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.
Lowering the vehicle X
Turn the cran kofthe jack anti-clockwise
until the vehicle is oncea gain standing
firmly on the ground.
X Place the jack to one side. X
Tighten the wheel bolts evenly in across-
wise patter ninthe sequence indicated
(: toA ). The tightening torque must be
130 Nm. G
WARNING
Have the tightening torque checked immedi-
ately after awheel is changed. The wheels
could work loose if they are not tightened to
at orque of 130 Nm.
X Turn the jack back to its initial position and
store it together with the rest of the vehicle
tool kit in the stowage well under the boot
floor.
X Vehicles with AMG equipment: ifaf ront
wheel has been changed, insert the cover
into the outer sill.
Vehicles with an emergency spare wheel:
X Transport the faulty wheel in the boot.
i When you are driving with the emergency
spare wheel fitted, the tyre pressure loss 304
Flat tyreBreakdown assistance

warning system cannot function reliably.
Only restart th
etyrep ressure loss warning
system when the defective whee lhas been
replaced with anew wheel. MOExtended tyres (tyres with run-flat
characteristics)
MOExtended tyres (tyres with run-flat char-
acteristics) allow you to continue driving the
vehicl eeven when one or more tyres lose all
air pressure.
MOExtended tyres may only be usedinc on-
junction with the activated tyre pressure loss
warning system or with the tyre pressure
monitor.
The maximu mpermissible distanc ewhich
can be driven in run-flat mode depends on the
load in the vehicle. It is 80 km if the vehicle
is partially laden and 30 km if fully laden.
The maximum permissible distanc ewhich
can be driven in run-flat mode is counted from
the momen tthe tyre pressure loss warning
appears in the multifunction display.
You must not exceed amaximum speed of
80 km/h. G
WARNING
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 sudden
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 alarge
extentont he loads placed on the vehicle. It
can be shorter due to high speeds, aheavy
load, sudden changes in direction, the road
surface condition, outside temperature, etc., or further if you drive carefully and conserva-
tively.
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 wheel(s) checked for damage at aquali-
fied specialist workshop which has the nec-
essary specialist knowledge and tools to carry
out the work required. The faulty tyre must be
replaced in every case.
Mercedes-Ben zrecommends that you use a
Mercedes-Benz Service Centr efor this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop.
i When replacing one or all tyres, make
sure that you only use tyres marked
MOExtended and of the specified size for
the vehicle.
i Vehicles with MOExtended tyres are not
equipped with aTIREFI Tkit at the factory.
It is therefore recommended that you addi-
tionally equip your vehicle with aTIREFI Tkit
if you fit tyres that do not feature run-flat
properties, e.g. winter tyres. ATIREFI Tkit
can be obtained from aMercedes-Benz
Service Centre. Battery
Important safety notes
In order for the batter ytoachieve the maxi-
mum possible service life, it must alway sbe
sufficiently charged.
Have the batter ycharge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period. Battery
305Breakdown assistance Z

Only replace
abattery with abattery that has
been recommended by Mercedes-Benz.
Consult aMercedes-Benz Service Centre if
you wish to leave your vehicle parked up for
al ong period of time. G
WARNING
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the battery.
Avoid creating sparks.
Battery acid is caustic.
Avoid contact with the skin,
eyes or clothing.
Wear suitablep
rotective
clothing, in particular
gloves, an apron and aface
mask.
Immediately rinse acid
splashes off with clean
water. Consult adoctor if
necessary. Wear eye protection.
Keep children away.
Observe this Owner's Man-
ual.
H
Environmental note Batteries contain pollutants.
It is against the law to dis-
pose of them with the house-
hold rubbish. They must be
collected separately and recycled in an environmen-
tally responsible manner.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to
aqualified spe-
cialist workshop, e.g. a
Mercedes-Benz Service
Centre, or to aspecial col-
lection point for old batter-
ies. G
WARNING
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz.T hese batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event
of an accident.
To prevent acid burns, observe the following
safety notes when handling batteries:
R do not lean over the battery.
R do not place any metal objectsonab attery.
Otherwise, you could cause ashort circuit
and the battery's gas mixture could ignite.
R make sure that you do not create an elec-
trostatic charge, e.g. by wearing synthetic
clothing or as aresult 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 discharge
ap ossible electrostatic charge, step out of
the vehicle first and touch the bodywork.
R do not wipe the battery using acloth. The
battery may explode as aresult of electro-
static charge or due to flying sparks.
! Switch off the engine and remove the key
before disconnecting the terminal clamps
from the battery. On vehicles with KEY-
LESS-GO, make sure that the ignition is
switched off. Check that all the indicator
lamps in the instrumentc luster are off.You 306
BatteryBreakdown assistance

may otherwise destroy electronic compo-
nents, such as the alternator.
i When you park the vehicle, remove the
key if you do not require any electrica lcon-
sumers .The vehicle will then use very little
energy, thus conserving battery power.
Mercedes-Ben zrecommends that you do not
carry out work on batteries yourself, e.g.
removin gorcharging. Have this work per-
formed at aqualified specialist workshop, e.g.
aM ercedes-Benz Service Centre. Installation location of the battery
Your vehicle is equipped with abatter yint he
engin ecompartment .Itislocated on the front
bulkhead under the filter box on the right-
hand side of the vehicle when viewed in the
direction of travel.
X Apply the parking brake firmly and on vehi-
cles with automatic transmission, shift the
transmission to position P.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Turn the key to position 0(Y page 147) in
the ignition lock and remove it, or, on vehi-
cles with KEYLESS-GO, make sure that the
ignition has been switched off
(Y page 147). All indicator lamps in the
instrument cluster must be off.
X Open the bonnet (Y page 281). X
Release clamps ;on filter box :using a
suitableo bject, such as ascrewdriver.
X Remove filter box :.
i Information on disconnecting the battery
(Y page 307). Disconnecting the battery
! Alwaysd isconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
In vehicles with automatic transmission,
the transmission is locked in position P
after disconnecting the battery. The vehicle
is secured against rolling away. You can
then no longer move the vehicle. :
Battery
; Positive terminal
= Negative terminal
? Breather hose
X Loosen the negative terminal clamp on the
battery and remove it.
X Remove the cover from the positive termi-
nal clamp.
X Loosen the positive terminal clamp on the
battery and remove it.
X Remove breather hose ?from the side of
the battery. Battery
307Breakdown assistance Z

Removing/fitting the battery
X To remove: disconnect the battery
(Y page 307).
X Loosen the bol twhich holds the battery in
place.
X Remove the battery.
X To fit: follow the steps described in "To
remove" in reverse order. Reconnecting the battery
! Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Put the filter box back in place, then clip in
and close the retaining clamps.
X Close the bonnet.
i If the power supply has been interrupted,
e.g. if the battery has been reconnected,
you must carry out the following tasks:
R set the clock (Y page 226).
R reset the function for automatically fold-
ing the exterior mirrors in/out by folding
the mirrors out once (Y page 110).Charging the battery
G
WARNING
Only charge the battery in awell-ventilated
area. As the battery is being charged, gases
can escape and generate minor explosions.
This could 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 while still installed from
aqualified
specialist workshop, e.g. aMercedes-Benz
Service Centre. G
WARNING
There is arisk of acid burns during the charg-
ing process due to the gases which escape
from the battery. Do not lean over the battery
during the chargin gprocess. G
WARNING
Battery acid is caustic. Avoid contact with the
skin ,eyes or clothing.
! Only charge the installed batter ywith a
batter ycharger which has been tested and
approved by Mercedes-Benz .These battery
chargers allow the battery to be charged
while still installed.
! Only use battery chargers with amaxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
The jump-starting connection point is in the
engine compartment( Ypage 309).
X Open the bonnet (Y page 281).
X Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
(Y page 309).
X Read the battery charger's operating
instructions before charging the battery. 308
BatteryBreakdown assistance

Jump-starting
G
WARNING
There is arisk of acid burns when jump-starting avehicle due to the gases which escape from
the battery. Do not lean over the battery while the engine is being jump-started. G
WARNING
Gases escaping from the battery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with safety precautions when handling batteries. You will find these under "Battery" in
the index.
! Avoid repeated and lengthy startinga ttempts. Otherwise, non-combusted fuel may dam-
age the catalytic converter 22
and create arisk of fire.
Do not use arapid-charging device to start the engine.
Make sure the jump leads are not damaged.
Make sure the jump leads are not touching any other metal objectsw hen they are connected
to the battery.
If your vehicle's battery is discharged, the engine can be jump-started from another vehicle
or from asecond battery using jump leads.
Observe the following points:
X The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using asecond battery or ajump-starting device.
X Only jump-start th evehicl ewhen th eengineisc olda nd th ecatalyti cconverter system has
cooled down 23
.
X Do not start the engine if the battery is frozen. Let the battery thaw first.
X Jump-starting may only be performed from batteries with anominal voltage of 12 V.
X Only use jump leads which have asufficient cross-section and insulated terminal clamps.
X Make sure that the jump leads cannot come into contact with parts, such as the pulley or
the fan. These parts move when the engine is started and while it is running.
X If the battery is fully discharged, leave the battery that is being used to jump-start connected
for afew minutes before attempting to start.T his charges the empty batteryalittle.
i Jump leads and further information about jump-starting can be obtained from any
Mercedes-Ben zService Centre, for example.
X Make sure that the two vehicles do not touch.
X Apply the parking brake firmly.
X Manual transmission: engage neutral.
X Automatic transmission: move the selector lever toP.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 281).
22 Only vehicles with apetrol engine.
23 Only vehicles with apetrol engine. Jump-starting
309Breakdown assistance Z