XTurn mechanical key ; back and remove
it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or with KEYLESS-GO, lock it as
follows:
XOpen the driver’s door.XClose the front passenger door, the rear
doors, and the trunk.
XPress the central locking switch
(Y page 75).
The locking knobs of the front passenger
door and the rear doors move down.
XIf the vehicle battery is disconnected or
drained: Press down the locking knobs on
the front passenger door and the rear
doors.
XExit the vehicle.XClose the driver’s door.XRemove mechanical key ; from the
SmartKey (Y page 309).
XInsert mechanical key ; into the driver’s
door lock.
XTurn mechanical key ; clockwise to
position 1.
The vehicle is locked.
XTurn mechanical key ; back and remove
it from the driver’s door lock.
XCheck whether the doors and the trunk are
locked.
XIf necessary, lock the trunk with the
mechanical key (Y page 77).
iThis procedure does not arm the anti-
theft alarm system, nor does it lock the fuel
filler flap.
Fuel filler flap
GWarning!
Avoid contact with the vehicle walls as they
may contain sharp edges. Otherwise, you
could injure yourself while releasing the fuel
filler flap.
In case the central locking system does not
release the fuel filler flap, you can open it
manually.
The fuel filler flap release is located on the
passenger side in the trunk behind the cover.
XOpen the trunk (Y page 75).XOpen the fuse box cover in the trunk
(Y page 329).
XPull fuel filler flap release : in direction of
arrow.
The fuel filler flap is unlocked.
XOpen the fuel filler flap (Y page 222).XClose the cover.XClose the trunk.310Unlocking/locking manuallyPractical hints
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Charging the batteryGWarning!
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during
charging and could cause an explosion that
may result in personal injury, paint damage or
corrosion.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for
information and availability.
Charge battery in accordance with the
separate instructions for the accessory
battery charger.
Have the battery charged at an authorized
Mercedes-Benz Center. If you charge the
battery yourself, follow the operating
instructions for your charging device.
Only use a battery charge unit with a
maximum charging voltage of 14.8 V.
XCharge battery in accordance with the
instructions of the battery charger
manufacturer.
Jump starting
GWarning!
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting or
jump starting. You might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery can
result in it exploding, causing personal injury.
Read all instructions before proceeding.
! Vehicles with automatic transmission
and/or 4MATIC:
Do not tow-start the vehicle. You could
otherwise seriously damage the automatic
transmission which is not covered by the
Mercedes-Benz Limited Warranty.
! Jump starting should only be performed
using the jump-start terminals located in
the engine compartment.
Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick-charge unit.
If the engine does not run after several
unsuccessful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and may
present a fire risk.
Make sure the jumper cables do not have
loose or missing insulation.
Make sure the cable clamps do not touch
any other metal part while the other end is
still attached to a battery.
If the battery is discharged, the engine can be
started with jumper cables and the fully
charged battery of another vehicle or an
equivalent starter pack. Observe the
following:
R Access to the battery is not possible on all
vehicles. If you cannot access the batteryJump starting323Practical hints204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 323Z
Vehicle equipment ............................332
Parts service .....................................332
Warranty coverage ...........................332
Identification labels ..........................332
Vehicle specification C 250
(204.052) ...........................................334
Vehicle specification C 250 Sport
(204.052) ...........................................334
Vehicle specification C 250
4MATIC (204.085) .............................335
Vehicle specification C 250
4MATIC Sport (204.085) ..................336
Vehicle specification C 300
(204.054) ...........................................337
Vehicle specification C 300 Sport
(204.054) ...........................................338
Vehicle specification C 300
4MATIC (204.081) .............................339
Vehicle specification C 300
4MATIC Sport (204.081) ..................340
Vehicle specification C 350
(204.056) ...........................................341
Vehicle specification C 350 Sport
(204.056) ...........................................342
Vehicle specification C 350
4MATIC (204.087) .............................343
Vehicle specification C 63 AMG
(204.077) ...........................................343
Rims and tires ...................................344
Fuels, coolants, lubricants, etc. ......349
331Technical data204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 331
Vehicle specification C 250 (204.052)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
i The C 250 is available in Canada only.Engine C 250Engine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.46 in (88.00 mm)Stroke2.69 in (68.40 mm)Total piston
displacement152.3 cu in
(2 496 cm 3
)Compression
ratio11.4:1Output acc. to
SAE J 1349 21201 hp/6
100 rpm
(150 kW/6 100 rpm)Maximum torque
acc. to SAE J 1349181 lb-ft/
2 900 - 5 500 rpm
(245 Nm/
2 900 - 5 500 rpm)Maximum engine
speed6 500 rpmFiring order1-4-3-6-2-5Poly-V-belt2 401 mmElectrical system C 250Alternator14 V/150 AStarter motor12 V/1.4 kWBattery12 V/74 AhElectrical system C 250Spark plugs, typeBosch Y 7 MPP33Spark plugs,
electrode gap0.031 in (0.8 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions C 250Overall vehicle
length182.3 in (4 630 mm)Overall vehicle
width 2279.5 in (2
020 mm)Overall vehicle
height56.9 in (1 444 mm)Wheelbase108.7 in (2 760 mm)Track, front60.7 in (1 541 mm)Track, rear60.8 in (1 544 mm)Turning circle35.4 ft (10.8 m)Weights C 250Roof loadmax. 220 lb (100 kg)Trunk loadmax. 220 lb (100 kg)
Vehicle specification C 250 Sport
(204.052)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
i The C 250 Sport is available in Canada
only.
21 Premium fuel required. Performance may vary with fuel octane rating.
22 Exterior rear view mirrors folded out.334Vehicle specification C 250 Sport (204.052)Technical data
204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 334
Engine C 250 SportEngine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.46 in (88.00 mm)Stroke2.69 in (68.40 mm)Total piston
displacement152.3 cu in
(2 496 cm 3
)Compression
ratio11.4:1Output acc. to
SAE J 1349 23201 hp/6
100 rpm
(150 kW/6 100 rpm)Maximum torque
acc. to SAE J 1349181 lb-ft/
2 900 - 5 500 rpm
(245 Nm/
2 900 - 5 500 rpm)Maximum engine
speed6 500 rpmFiring order1-4-3-6-2-5Poly-V-belt2 401 mmElectrical system C 250 SportAlternator14 V/150 AStarter motor12 V/1.4 kWBattery12 V/74 AhSpark plugs, typeBosch Y 7 MPP33Spark plugs,
electrode gap0.031 in (0.8 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions C 250 SportOverall vehicle
length182.8 in (4 630 mm)Overall vehicle
width 2479.5 in (2
020 mm)Overall vehicle
height57.0 in (1 449 mm)Wheelbase108.7 in (2 760 mm)Track, front60.4 in (1 533 mm)Track, rear59.6 in (1 514 mm)Turning circle35.4 ft (10.8 m)Weights C 250 SportRoof loadmax. 220 lb (100 kg)Trunk loadmax. 220 lb (100 kg)
Vehicle specification C 250 4MATIC
(204.085)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
i The C 250 4MATIC is available in Canada
only.
Engine C 250 4MATICEngine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.46 in (88.00 mm)Stroke2.69 in (68.40 mm)23 Premium fuel required. Performance may vary with fuel octane rating.
24 Exterior rear view mirrors folded out.Vehicle specification C 250 4MATIC (204.085)335Technical data204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 335Z
Engine C 250 4MATICTotal piston
displacement152.3 cu in
(2 496 cm 3
)Compression
ratio11.4:1Output acc. to
SAE J 1349 25201 hp/6
100 rpm
(150 kW/6 100 rpm)Maximum torque
acc. to SAE J 1349181 lb-ft/
2 900 - 5 500 rpm
(245 Nm/
2 900 - 5 500 rpm)Maximum engine
speed6 500 rpmFiring order1-4-3-6-2-5Poly-V-belt2 401 mmElectrical system C 250 4MATICAlternator14 V/150 AStarter motor12 V/1.4 kWBattery12 V/74 AhSpark plugs, typeBosch Y 7 MPP33Spark plugs,
electrode gap0.031 in (0.8 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions C 250 4MATICOverall vehicle
length182.8 in (4 630 mm)Overall vehicle
width 2679.5 in (2
020 mm)Overall vehicle
height56.9 in (1 445 mm)Main dimensions C 250 4MATICWheelbase108.7 in (2 760 mm)Track, front60.7 in (1 541 mm)Track, rear60.8 in (1 544 mm)Turning circle35.4 ft (10.8 m)Weights C 250 4MATICRoof loadmax. 220 lb (100 kg)Trunk loadmax. 220 lb (100 kg)
Vehicle specification C 250 4MATIC
Sport (204.085)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
i The C 250 4MATIC Sport is available in
Canada only.
Engine C 250 4MATIC SportEngine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.46 in (88.00 mm)Stroke2.69 in (68.40 mm)Total piston
displacement152.3 cu in
(2 496 cm 3
)Compression
ratio11.4:1Output acc. to
SAE J 1349 27201 hp/6
100 rpm
(150 kW/6 100 rpm)25
Premium fuel required. Performance may vary with fuel octane rating.
26 Exterior rear view mirrors folded out.
27 Premium fuel required. Performance may vary with fuel octane rating.336Vehicle specification C 250 4MATIC Sport (204.085)Technical data
204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 336
Engine C 250 4MATIC SportMaximum torque
acc. to SAE J 1349181 lb-ft/
2 900 - 5 500 rpm
(245 Nm/
2 900 - 5 500 rpm)Maximum engine
speed6 500 rpmFiring order1-4-3-6-2-5Poly-V-belt2 401 mmElectrical system C 250 4MATIC SportAlternator14 V/150 AStarter motor12 V/1.4 kWBattery12 V/74 AhSpark plugs, typeBosch Y 7 MPP33Spark plugs,
electrode gap0.031 in (0.8 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions C 250 4MATIC SportOverall vehicle
length182.8 in (4 630 mm)Overall vehicle
width 2879.5 in (2
020 mm)Overall vehicle
height57.0 in (1 449 mm)Wheelbase108.7 in (2 760 mm)Track, front60.4 in (1 533 mm)Track, rear59.6 in (1 514 mm)Turning circle35.4 ft (10.8 m)Weights C 250 4MATIC SportRoof loadmax. 220 lb (100 kg)Trunk loadmax. 220 lb (100 kg)
Vehicle specification C 300 (204.054)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
Engine C 300Engine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.46 in (88.00 mm)Stroke3.23 in (82.10 mm)Total piston
displacement182.8 cu in
(2 996 cm 3
)Compression
ratio11.3:1Output acc. to
SAE J 1349 29228 hp/6
000 rpm
(170 kW/6 000 rpm)Maximum torque
acc. to SAE J 1349221 lb-ft/
2 500 - 5 000 rpm
(300 Nm/
2 500 - 5 000 rpm)Maximum engine
speed6 500 rpmFiring order1-4-3-6-2-5Poly-V-belt2 401 mm28
Exterior rear view mirrors folded out.
29 Premium fuel required. Performance may vary with fuel octane rating.Vehicle specification C 300 (204.054)337Technical data204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 337Z
Electrical system C 300Alternator14 V/150 AStarter motor12 V/1.4 kWBattery12 V/74 AhSpark plugs, typeBosch Y 7 MPP33Spark plugs,
electrode gap0.031 in (0.8 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions C 300Overall vehicle
length182.8 in (4 630 mm)Overall vehicle
width 3079.2 in (2
012 mm)Overall vehicle
height57.0 in (1 449 mm) 3156.9 in (1
444 mm) 32Wheelbase108.7 in (2
760 mm)Track, front60.4 in (1 533 mm) 3160.7 in (1
541 mm) 32Track, rear59.6 in (1
514 mm) 3160.8 in (1
544 mm) 32Turning circle35.4 ft (10.8 m)Weights C 300Roof loadmax. 220 lb (100 kg)Trunk loadmax. 220 lb (100 kg)Vehicle specification C 300 Sport
(204.054)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
i The C 300 Sport is available in the USA
only.Engine C 300 SportEngine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.46 in (88.00 mm)Stroke3.23 in (82.10 mm)Total piston
displacement182.8 cu in
(2 996 cm 3
)Compression
ratio11.3:1Output acc. to
SAE J 1349 33228 hp/6
000 rpm
(170 kW/6 000 rpm)Maximum torque
acc. to SAE J 1349221 lb-ft/
2 500 - 5 000 rpm
(300 Nm/
2 500 - 5 000 rpm)Maximum engine
speed6 500 rpmFiring order1-4-3-6-2-5Poly-V-belt2 401 mm30
Exterior rear view mirrors folded out.
31 Canada only.
32 USA only.
33 Premium fuel required. Performance may vary with fuel octane rating.338Vehicle specification C 300 Sport (204.054)Technical data
204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 338