2011 MERCEDES-BENZ C-CLASS COUPE oil

Example: vehicles with a diesel engine
X
Pull oil dipstick :outoft he oil dipstick
tube.
X Wipe off oil dipstick :.
X Slowly slide oil dipstick :into the guide
tube to the stop, and take it out again.
The oil level is correct if the level is between
MIN mark =and MAX mark ;.
X Top up the oil if necessary.
Adding engine oil H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment. G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts. Example: engine oil cap X
Turn cap :anti-clockwise and remove it.
X Top up with the amount of oil required.
Fill carefully to the maximum mark on the oil
dipstick.
i Depending on the engine, the difference
between the minimum mark and the maxi-
mum mark is approximately 1.5 – 2 litres.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
For further information on engine oil, see
(Y page 355).
X Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely. Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X
Turn the key to position 2(Y page 137) in
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 137).
X Check the coolant temperature display in
the instrument cluster. G
WARNING
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature gauge
must display less than 70 †.Otherwise, you
could be scalded if hot coolant escapes. Engine compartment
303Maintenance and care Z

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

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

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

X
Using wheel wrench :, loosen the bolts on
the wheel you wish to change by abouto ne
full turn. Do not unscrew the bolts com-
pletely.
The jacking points for the jack are located
behind the wheel housings of the front wheels
and in front of the wheel housings of the rear
wheels (arrows). X
Positio njack =at jacking point ;. X
Make sure that the base of the jac kis posi-
tioned directly under the jacking point.
X Turn crank ?clockwise until jack =sits
completely on jacking point ;and the
base of the jack lies evenly on the ground.
X Turn crank ?until the tyre is raised a max-
imum of 3 cm from the ground.
Removing awheel X
Unscrew the wheel bolts.
! Do not place wheel bolts in sand or dirt.
The threads of the wheel bolts and wheel
hubs could otherwise be damaged when
the bolts are tightened.
X Remove the wheel.
Fitting anew wheel G
WARNING
Replace damaged or corroded wheel bolts.
Never oil or grease wheel bolts. This could
cause the bolts to loose ninthe wheel hub. G
WARNING
If a wheel 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 Centre or Service 24h for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified 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. Flat tyre
323Breakdown assistance
Z

Changing
awheel Flat tyre
The "Breakdown assistance" section
(Y page 316) contains information and notes
on how to deal with a fla ttyre. It also provides
instructions on changing a wheel or fitting the
spare wheel or emergency spare wheel. Interchanging the wheels
G
WARNING
Interchange the front and rear wheels only if
they have the same dimensions, fo rexample
size, offset, etc.
After every wheel interchange/change, have
the tightening torque checked at a qualified
specialist workshop tha thas the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Ben zService
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.
The wheels could work loose if they are not
tightened to a torque of 130 Nm.
For safety reasons, Mercedes-Benz recom-
mends that you only use wheel bolts of the
correct size which have been approved for
Mercedes-Benz vehicles.
The wear patterns on the fron tand rea rtyres
differ, depending on the operating conditions.
Interchange the wheels befor eaclear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
On vehicles that have the same size front and
rea rwheels, you can interchange the wheels
every 5000 km to 10,000 km depending on
the degree of tyre wear. Do not reverse the
direction of tyre rotation.
Cleant he contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and, if necessary, restart the tyre pressure loss
warning system or the tyre pressure monitor.
!
On vehicles fitted with a tyre pressure
monitor, electronic components are loca-
ted in the wheel.
Tyre-fitting tools should not be applied in
the area of the valve, as this could damage
the electronic components.
Always have the tyres changed at a quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre. Direction of rotation
Tyres with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of aquaplaning. You will only gain these ben-
efits if the correct direction of rotation is
observed.
An arrow on the sidewall of the tyre indicates
its correct direction of rotation.
You may fit an emergency spare wheel/spare
wheel against the direction of rotation.
Observe the time restriction on use as well as
the speed limitation specified on the emer-
gency spare wheel/spare wheel. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the
tyres against oil, grease, petrol and diesel. Cleaning the wheels
G
WARNING
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent. 344
Changing
awheelWheels and tyres

Vehicle identification plate (example)
:
Vehicle identification plate
; Vehicle manufacturer
= EU type approval number
? Vehicle identification number (VIN)
A Maximum permissible gross vehicle
weight
B Gross combination mass
C Maximum permissible front axle load
D Maximum permissible rear axle load
E Paint code Vehicle identification number (VIN)
In addition to being stamped on the vehicle
identification plate, the vehicle identification
number (VIN) is also stamped onto the vehicle
body.
It is located on the floor in front of the right-
hand front seat. X
Slide the right-hand front seat to its rear-
most position.
X Fold floor covering :upwards.
You will see vehicle identification number
(VIN) ;. Engine number
The engine number is stamped into the crank-
case. More information can be obtained from
any Mercedes-Benz Service Centre. Service products and capacities
Important safety notes
Service products include the following:
R fuels (e.g. petrol, diesel)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washerf luid
Vehicle components and their respective
lubricants must match. Mercedes-Benz rec-
ommends that you use products that have
been tested and specially approved by
Mercedes-Benz. These products are listed in
this Mercedes-Ben zOwner's Manual in the
relevant section.
You can recognise service products approved
by Mercedes-Ben zby the following inscrip-
tion on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations that
relate to a level of quality or a specification in
accordance with an MB Sheet number (such
as MB 229.5) hav enot necessarily been
approved by Mercedes-Benz.
You can obtain further information from any
Mercedes-Benz Service Centre. G
WARNING
When handling, storing and disposing of any
service products, please observe the relevant Service products and capacities
353Technical data
Z