service MERCEDES-BENZ C-CLASS COUPE 2011 Repair Manual

and windscree
nwasher concentrate (e.g.
MB WinterFit) .Adapt the mixing ratio to the
outside temperatures.
X To open: pull cap:upwards by the tab.
X Top up with the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages. Maintenance
ASSYST PLUS service interval display
Service messages Information on the type of service and service
intervals (see separate Service Booklet).
You can obtain further information from a
Mercedes-Benz Service Centre.
The ASSYST PLUS service interval display
informs you when the nex tservice is due.
The multifunction display shows a service
message for a few seconds, e.g.:
Next service A due in .. days Service A due
Service A overdue by ... days
The letter indicates which service is due.
Astands for a minor service and
B for a major
service. A number or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenance work
to be performed.
If you report this displayed information to a
qualified specialist workshop, for example a
Mercedes-Benz Service Centre, they can
infor myou of the costs the service will incur.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted. Maintaining the time-dependent service
schedule:
X
Note down the service due date displayed
in the multifunction display before discon-
necting the battery.
or
X Subtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
i The ASSYST PLUS service interval display
does not show any information on the
engine oil level. Observe the notes on the
engine oil level (Y page 302).
Hiding aservice message X
4-button multifunction steering wheel:
press C.
X 12-button multifunction steering
wheel: press%ora.
Displaying service messages X
Switch the ignitio non.
4-button multifunction steering wheel
X Use V to select the Servicemenu.
The service due date appears in the multi-
functio ndisplay.
12-button multifunction steering wheel
X Press the =or; button to selec tthe
Serv. menu.
X Press the 9or: button to select the
ASSYST PLUS submenu and confirm by
pressing the abutton.
The service due date appears in the multi-
function display.
Please bear the following in mind Resetting the ASSYST PLUS service inter-
val display
Aq
ualified specialist workshop, e.g. a
Mercedes-Ben zService Centre, will reset the Maintenance
305Maintenance and care Z

ASSYST PLUS service interval display after
the service work has been carried out.
You can obtain further information, e.g.
regarding service work, fro maMercedes-
Benz Service Centre or directly from
Mercedes-Benz.
! If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a Mercedes-Benz
Service Centre.
Have service work carried out as described
in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's current telephone numbers
for use when you are abroad are to be found
in the "Mercedes-Benz Service24h" section
of the Service Booklet. Care
Notes on care
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents rec-
ommended and approved by Mercedes-Benz.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after clean-
ing. Braking heats the brake discs and the
brake pads/linings, thus drying them. The
vehicle can then be parked up. Care of the exterior
Automatic car wash G
WARNING
Braking efficiency is reduced after washing
the vehicle. This could cause an accident. For
this reason, following a car wash, drive with
particular care until the brakes are dry. G
WARNING
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate the HOLD function and DISTRONIC
PLUS before the vehicle is washed in an auto-
matic car wash.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Make sure that the automatic transmis-
sion is in position Nwhen washing your
vehicle in a tow-through car wash. The vehi-
cle could be damaged if the transmission is
in another position.
! Make sure that: 306
CareMaintenance and care

R
the side windows and sliding sunroo fare
closed completely.
R the blower for the ventilation/heating is
switched off (OFF button is depressed).
R the windscreen wiper switch is at posi-
tion 0.
The vehicle could otherwise be damaged.
After using an automatic car wash, wipe off
waxf rom the windscreen and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the wind-
screen.
High-pressure cleaning equipment G
WARNING
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clea nyour
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent.
! Always maintain a distance of at least
30 cm between the vehicle and the high-
pressure cleaner nozzle. Information about
the correc tdistance is available fro mthe
equipment manufacturer.
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door gaps, roof gaps, joints etc.
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures. Cleaning the wheels !
Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after clean-
ing. Braking heats the brake discs and the
brake pads/linings, thus drying them. The
vehicle can then be parked up.
Cleaning the paintwork Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre.
X
Remove impurities immediately, where
possible, whilst avoiding rubbing too hard.
X Soak insect remains with insect remover
and rinse off the treated areas afterwards.
X Soak bird droppings with water and rinse
off the treated areas afterwards.
X Remove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with a cloth soaked in petroleum ether or
lighter fluid.
X Use tar remover to remove tar stains.
X Use silicone remover to remove wax.
! Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork. Care
307Maintenance and care Z

Care and treatment of matt paintwork
If your vehicle has a clear mat
tfinish, observe
the following instructions in order to avoid
damage to the paintwork due to incorrect
care.
These notes also apply to light alloy wheels
with a clear mat tfinish.
! Neve rpolish the vehicle or the light alloy
wheels. Polishing makes the paintwork
shiny.
! The following may cause the paint to
become shiny and thus reduce the matt
effect:
R Vigorous rubbing with unsuitable mate-
rials.
R Frequent use of car washes.
R Washing the vehicle in direct sunlight.
! Never use paint cleaner, buffing or pol-
ishing products, or gloss preserver, e.g.
wax. These products are only suitable for
high-gloss surfaces. Their use on vehicles
with matt finish leads to considerable sur-
face damage (shiny, spotted areas).
Always have paintwork repairs performed
at a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
! Do not use wash programs with a hot wax
treatment under any circumstances.
i The vehicle should preferably be washed
by hand using a soft sponge, car shampoo
and plenty of water.
i Use only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
Cleaning the windows G
WARNING
Switch off the windscreen wipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in the instrument cluster have gone off. The
windscreen wipers could otherwise move and
injure you.
! Only fold the windscreen wipers away
from the windscreen when vertical. Other-
wise, you will damage the bonnet.
X Clean the inside and outside of the win-
dows with a damp cloth and a cleaning
agent that is recommended and approved
by Mercedes-Benz.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows.
Do not touch the insides of the windows
with hard objects, e.g. an ice scraper or
ring. There is otherwise a risk of damaging
the windows.
! Clean the water drainage channels of the
windscreen and the rear window at regular
intervals. Deposits such as leaves, petals
and pollen may under certain circumstan-
ces prevent water from draining away.T his
can lead to corrosion damage and damage
to electronic components.
Cleaning the wiper blades G
WARNING
Switch off the windscreen wipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in
the instrument cluster have gone off. The
windscreen wipers could otherwise move and
injure you.
! Only fold the windscreen wipers away
from the windscreen when vertical. Other-
wise, you will damage the bonnet.
! Do not pull on the wiper blade. Otherwise,
the wiper blade could be damaged.
! Do not clean wiper blades too often and
do not rub them too hard. Otherwise, the 308
CareMaintenance and care

X
Remove any rus tusing a wire brush.
X Remove dirt with a clean, lint-free cloth or
a brush.
! Do not clean the ball coupling with a high-
pressure cleaner. Do not use solvents. X
After cleaning, lightly oil or grease ball cou-
pling :.
X Check that the vehicle's trailer tow hitch is
working properly.
! Observe the note on care provided by the
trailer manufacturer.
i Maintenance of the ball coupling and
trailer tow hitch can also be performed at
a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. H
Environmental note
Dispose of oily and greasy cloths in an envi-
ronmentally-responsible manner. Interior care
Cleaning the display X
Before cleaning the display, make sure that
it is switched off and has cooled down.
X Cleant he display surface using a commer-
cially-available microfibre cloth and TFT/
LCD display cleaner.
X Dry the display surface using a dry micro-
fibre cloth. !
For cleaning, do not use any of the fol-
lowing:
R alcohol-based thinner or petrol
R abrasive cleaning agents
R commercially-available household clean-
ing agents
These may damage the display surface. Do
not put pressure on the display surface
when cleaning. This could lead to irrepara-
ble damage to the display.
Cleaning the plastic trim G
WARNING
When cleaning the steering wheel boss and
dashboard, do not use cockpit sprays or
cleaning agents containing solvents. Cleaning
agents containing solvents cause the surface
to become porous, and as aresult plastic
parts may break away and be thrown around
the interior when an airbag is deployed, which
may result in severe injuries.
! Do not affix the following to plastic surfa-
ces:
R stickers
R films
R scented oil bottles or similar items
You could otherwise damage the plastic.
! Do not allow cosmetics, insect repellent
or sunscreen to come in contact with the
plastic trim .This maintains the high-quality
look of the surfaces.
X Wipe the plastic trim with a damp, lint-free
cloth, e.g. a microfibre cloth.
X Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
The surface may change colour tempora-
rily. Wait until the surface is dry again. 310
CareMaintenance and care

Cleaning wooden trim and trim pieces
X
Wipe the woode ntrim and trim pieces with
a damp, lint-free cloth, e.g. a microfibre
cloth.
X Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
! Do not use solvent-based cleaning agents
such as tar remover, whee lcleaners, pol-
ishes or waxes. There is otherwise a risk of
damaging the surface.
Cleaning the seat covers !
Do not use microfibre cloths to clean gen-
uine leather, artificial leathe ror
Alcantara® covers. If used often, these can
damage the cover.
! Observe the following when cleaning:
R clean genuine leather covers carefully
with a damp cloth and then wipe the cov-
ers down with a dry cloth. Make sure that
the leather does not become soaked .It
may otherwise become rough and
cracked. Only use leather care agents
that have been tested and approved by
Mercedes-Benz. You can obtai nthese
from a qualified specialist workshop, e.g.
a Mercedes-Benz Service centre.
R clean artificial leather covers with a cloth
moistened with a solution containing 1%
detergent (e.g. washing-up liquid).
R clean cloth covers with a microfibre cloth
moistened with a solution containing 1%
detergent (e.g. washing-up liquid). Rub
carefully and always wipe entire seat sec-
tions to avoid leaving visible lines. Leave
the seat to dry afterwards. Cleaning
results depend on the type of dirt and
how long it has been there.
R clean Alcantara® covers with a damp
cloth. Make sure you wipe entire seat
sections to avoid leaving visible lines. i
Note that regular care is essential to
ensure that the appearance and comfort of
the covers is retained over time.
Cleaning the seat belts X
Use clean, lukewarm water and soap solu-
tion.
! Do not clean the seat belts using chemical
cleaning agents. Do not dry the seatbelts
at temperatures above 80 †orby exposing
them to direc tsunlight. Care
311Maintenance and care Z

Example: first-aid kit in an open stowage space
X Remove first-aid kit :.
i Check the expiry date on the first-aid kit
at leas tonce a year .Replace the contents
if necessary, and replace missing contents. Fire extinguisher
The fire extinguisher is located underneath
the front of the driver's seat. X
Pull tab :upwards.
X Remove fire extinguisher ;.
i Have the fire extinguisher refilled after
each use and checked every one or two
years. It may otherwise fail in an emer-
gency.
Observe the legal requirement sinall coun-
tries concerned. Vehicle tool kit
The vehicle tool kit can be found in the stow-
age well under the boot floor.
i Vehicles without a spare wheel are not
equipped with the tools needed to change
a wheel when they leave the factory, e.g. a
jac korw heel wrench. Country-specific dif-
ferences are possible. Some tools for
changing a wheel are specific to the vehi-
cle. To obtain tools approved for your vehi-
cle, visit a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
X Vehicles with a TIREFIT kit: lift up the
boot floor (Y page 288). :
Tyre sealant filler bottle
; Tyre inflation compressor
= Towing eye
? Folding wheel chock
A Wheel wrench
B Jack
C One pair of gloves (behind jack)
X Vehicles with a spare
wheel/"Minispare" emergency spare
wheel: lift up the boot floor (Y page 288). Where will I find...?
315Breakdown assistance

:
Vehicle tool kit tray
; Stowage well
= Spare wheel/"Minispare" emergency
spare wheel
The vehicle tool kit contains:
R Foldable wheel chock
R Fuse allocation chart
R Jack
R One pair of gloves
R Wheel wrench
R Towing eye Spare wheel/"Minispare" emergency
spare wheel
The spare wheel or "Minispare" emergency
spare wheel can be found in the stowage well
under the boot floor.
X Lift the boot floor upwards (Y page 288). X
To remove the spare wheel or
"Minispare" emergencys pare wheel:
remove vehicle tool kit tray :.
X Turn stowage well ;anti-clockwise and
remove it.
X Remove the spare wheel or "Minispare"
emergency spare wheel =.
For further information on changing a wheel
and fitting the spare wheel, see
(Y page 321). Flat tyre
Preparing the vehicle
Your vehicle may be equipped with:
R a TIREFIT kit
R an emergency spare wheel
R MOExtended tyres (tyres with run-flat char-
acteristics) (Y page 324)
i Vehicle preparation is not necessary on
vehicles with MOExtended tyres.
i Vehicles with MOExtended tyres are not
equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally equip your vehicle with a TIREFIT kit
if you fit tyres that do not feature run-flat
properties, e.g. winter tyres. A TIREFIT kit
can be obtained from a Mercedes-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 manual transmission:
engage first or reverse gear.
X Vehicles with automatic transmission:
move the selector lever to P.
X Switch off the engine. 316
Flat tyreBreakdown assistance

X
Vehicles withou tKEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics have status 0,
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 137).
X All occupants must get out of the vehicle.
Make sure that they are no tendangered as
they do so.
X Make sure tha tno one is near the danger
area whilst a wheel 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 conditions when doing so.
X Close the driver's door.
X Place the warning triangle (Y page 314) a
suitable distance away.O bserve legal
requirements. TIREFIT kit
Using the TIREFIT kit You can use the TIREFIT kit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT at outside temperatures
down to -20 †. G
WARNING
In the following situations, 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 4 mm.
R the wheel rim is damaged.
R you have driven at very low tyre pressures
or on a flat tyre.
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 a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related system
smust be carried out
at a qualified specialist workshop.
X Do not remove any foreign objects which
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 boo tfloor
(Y page 315). 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 defective tyre. G
WARNING
TIREFIT must not com einto 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 ou tofclothing which has come into
contact with TIREFIT immediately.
R If an allergic reaction occurs, consult a doc-
tor immediately.
Keep TIREFIT away fro mchildren. Flat tyre
317Breakdown assistance
Z

the work required. Mercedes-Benz recom-
mends tha tyou use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
Tyre pressure of 180 kPa (1.8 bar/
26 psi) is reached X
Switch off the tyre inflation compressor.
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 Centre for this purpose. In particular,
work relevant to safety or on safety-related
systems must be carried out at a qualified
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 tyre pressure: switch on
the tyre inflation compressor. Example: TIREFIT kit, version 2
X
To reduce the tyre pressure: press pres-
sure release button :next to pressure
gauge ;.
X TIREFIT kit version 1: take the tyre seal-
ant bottle out of the tyre inflation compres-
sor recess.
X TIREFIT kit version 1: unscrew the hose
from the tyre inflation compressor to the
flange of the tyre sealant bottle. TIREFIT kit version 2
X
TIREFIT kit version 2: to remove the tyre
sealant bottle from the tyre inflation com-
pressor, push the locking mechanisms on
the yellow cap together.
X TIREFIT kit version 2: pull the tyre sealant
bottle out of the tyre inflation compressor. 320
Flat tyreBreakdown assistance