On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 132).
XCheck the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
GWarning
In order to avoid any potentially serious burns:
Ruse extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
Rdo not remove the pressure cap on the
coolant reservoir if the coolant temperature
is above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
coolant reservoir contains hot fluid and is
under pressure.
Rusing a rag, slowly turn the cap
approximately 1/2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
Rdo not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.
XSlowly turn cap : half a turn counter-
clockwise and allow excess pressure to
escape.
XTurn cap : further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant is approximately 0.6 in
(1.5 cm) higher when warm, there is
enough coolant in coolant expansion
tank ;.
XIf necessary, add coolant which has been
tested and approved by Mercedes-Benz.
XReplace cap : and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 310).
Windshield washer system/headlamp
cleaning system
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
GWarning
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
! At temperatures below freezing, always
fill the washer fluid container with a mix of
windshield washer concentrate and
antifreeze additive. There is otherwise a
risk of damaging the windshield washer
system/headlamp cleaning system.
! Only use washer fluid concentrate which
is suitable for plastic lenses. Unsuitable
washer fluid concentrate could damage the
plastic lenses of the headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
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fluid level measuring gauge could be
damaged.
iAdd windshield washer concentrate, e.g.
MB SummerFit, to the washer fluid all year
round.
Example: washer fluid reservoir
XMix the windshield washer fluid in a
container beforehand.
XAt temperatures above freezing: fill the
washer fluid reservoir with a mix of water
and windshield washer concentrate (e.g.
MB SummerFit).
XAt temperatures below freezing: fill the
washer fluid reservoir with a mix of water
and MB SummerFit windshield washer
concentrate. For information on the mixing
ratio, see (Y page 310) or use the premixed
windshield washer solution with antifreeze
available in specialist stores.
XTo open: pull cap : upwards by the tab.XAdd the premixed washer fluid.XTo close: press cap : onto the filler neck
until it engages.
Brake fluid level
! If you discover that the brake fluid level in
the brake fluid reservoir has fallen to the
MIN mark or below, check the brake
system for leaks immediately. Also check
the brake lining thickness. Contact a
qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center
immediately.
Do not top up the brake fluid. This will not
rectify the malfunction.
Only check the brake fluid level when the
vehicle is stationary and on a level surface.
The brake fluid level is correct if it is between
MIN marking ; and MAX marking : on the
brake fluid reservoir.
Maintenance
Service interval display
Service messages
Information about the type of service and
service intervals (see separate Service
Booklet)
You can obtain more information at an
authorized Mercedes-Benz Center or at
www.mbusa.com (USA only).
The service interval display informs you of the
next service due date.
If a service is overdue, you will also hear a
warning tone.
The multifunction display shows a service
message for a few seconds, e.g.
Next Service A in .. mls
Service A due
Service A Exceeded By .. mls
The letter indicates which service is due. A
stands 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.
242MaintenanceMaintenance and care
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Engine number:Emissions control information label,
including the certification of both federal
and Californian emissions reference
values;Engine number (stamped into the
crankcase)=VIN (on the lower edge of the windshield)
Service products and capacities
Important safety notes
Service products include the following:
R fuels (e.g. gasoline, diesel)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windshield washer fluid
Vehicle components and their respective
lubricants must match. You should therefore
only use products that have been tested and
approved by Mercedes-Benz.
Information on tested and approved products
can be obtained at an authorized Mercedes-
Benz Center or on the Internet at http://
www.mbusa.com (USA only).
GWarning
Comply with all valid regulations with respect
to handling, storing and disposing of service
fluids. Otherwise, you could endanger
persons or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.304Service products and capacitiesTechnical data
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Vehicle modelCapacityFuel, coolant,
lubricants etc.Windshield/
headlamp
cleaning
systemC 250 45
C 250 4MATIC 45
C 300 4MATIC
C 350 4MATIC 45
C 63 AMG6.3 US qt (6.0 l)MB windshield
washer
concentrate 47
( Y page 310)
Mixing ratio for
washer fluid
( Y page 310)C 300
C 3503.7 US qt (3.5 l)Fuel
Important safety notesGWarning
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flames or smoking
materials near gasoline.
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging to your
health.
Premium-grade unleaded gasoline
! To ensure the longevity and full
performance of the engine, only premium-
grade unleaded gasoline must be used.
If premium-grade unleaded gasoline is
unavailable and regular gasoline is used,
observe the following precautions:
R only fill the fuel tank to half full with
regular unleaded gasoline and add the
rest as soon as possible with premium-
grade unleaded gasoline.
R do not drive at the maximum speed.
Ravoid sudden acceleration.
R when the vehicle is carrying a light cargo,
e.g. two passengers without luggage, do
not allow the engine to rev above
3000 rpm.
R when the vehicle is fully loaded or being
operated in mountainous terrain, do not
depress the accelerator pedal further
than 2
/ 3 of the pedal travel.
Flexible fuel vehicles
Important safety notes
All C 300 models with automatic
transmission are flexible fuel vehicles.
Flexible fuel vehicles are identified by a label
reading Premium gasoline or E85 only on
the inside of the fuel filler flap.
Flexible fuel vehicles are designed to operate
on premium unleaded gasoline and ethanol
fuel (E85) or a mixture of these two. Ethanol
fuel (E85) is a mixture of approximately 85%
ethanol and 15% unleaded gasoline.
GWarning
Ethanol fuel (E85) and its vapors are highly
flammable, poisonous and highly
combustible. Ethanol fuel causes serious
injury if it ignites, if it comes into contact with
your skin or if you inhale the vapors. Avoid
inhaling ethanol vapors and ethanol coming
45 Canada only.
47 Mixed with water or premixed washer fluid with antifreeze protection.306Service products and capacitiesTechnical data
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1.34 fl oz (40 ml) MB SummerFit to 1 gal
(4.0 l) of water.XAt temperatures below freezing: add 1
part MB SummerFit to 100 parts washer
fluid, e.g. 1.34 fl oz (40 ml) MB SummerFit
to 1 gal (4.0 l) of water.
Vehicle data
Vehicle data, C 250
The data quoted here refers specifically to a
vehicle with standard equipment. Contact an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
i This vehicle is only available in Canada.
Vehicle dimensions, C 250Vehicle length182.3 in (4630 mm)Vehicle width
including exterior
mirrors79.1 in (2008 mm)Vehicle height56.9 in (1444 mm)Wheel base108.7 in (2760 mm)Front track60.7 in (1541 mm)Rear track60.8 in (1544 mm)Turning circle35.6 ft (10.9 m)Vehicle weight, C 250Maximum roof
loadMaximum 220 lb
(100 kg)Maximum trunk
loadMaximum 220 lb
(100 kg)
Vehicle data, C 250 4MATIC
The data quoted here refers specifically to a
vehicle with standard equipment. Contact an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
i This vehicle is only available in Canada.Vehicle dimensions, C 250 4MATICVehicle length182.8 in (4630 mm)Vehicle width
including exterior
mirrors79.1 in (2008 mm)Vehicle height56.9 in (1444 mm)Wheel base108.7 in (2760 mm)Front track60.7 in (1541 mm)Rear track60.8 in (1544 mm)Turning circle35.6 ft (10.9 m)Vehicle weight, C 250 4MATICMaximum roof
loadMaximum 220 lb
(100 kg)Maximum trunk
loadMaximum 220 lb
(100 kg)
Vehicle data, C 300
The data quoted here refers specifically to a
vehicle with standard equipment. Contact an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
Vehicle dimensions, C 300Vehicle length182.8 in (4630 mm)Vehicle width
including exterior
mirrors79.1 in (2012 mm)Vehicle height56.9 in (1444 mm)Wheel base108.7 in (2760 mm)Front track60.7 in (1541 mm)Rear track60.8 in (1544 mm)Turning circle35.6 ft (10.9 m)Vehicle data311Technical dataBA 204 USA, CA Edition A 2011; 1; 5, en-UShereepeVersion: 3.0.3.62010-05-20T09:17:30+02:00 - Seite 311Z