X
Push handle ; under the hood upwards.
X Lift the hood at the front edge.
The hood will be held open at shoulder
height by gas-filled struts automatically.
Closing G
Warning!
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure the hood is securely engaged
before driving off. Do not continue driving if
the hood can no longer engage after an
accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and injure you and/or others.
X Let the hood drop from a height of
approximately 8 in (20 cm).
X Check to make sure the hood is fully
closed.
If you can raise the hood at a point above
the headlamps, then it is not properly
closed. Open it again and let it drop with
somewhat greater force. Engine oil
The amount of oil your engine consumes will
depend on a number of factors, including
driving style. Increased oil consumption can
occur when the vehicle is new or the vehicle
is driven frequently at higher engine speeds. Engine oil consumption checks should only
be made after the vehicle break-in period.
!
Do not use any special lubricant additives,
as these may damage the drive assemblies.
Using special additives not approved by
Mercedes-Benz may cause damage not
covered by the Mercedes-Benz Limited
Warranty.
For further information contact an
authorized Mercedes-Benz Center.
Notes on checking engine oil level When checking the oil level
R
the vehicle must be parked on level ground
R with the engine at operating temperature,
the vehicle must have been stationary for
at least 5 minutes with the engine turned
off
R with the engine not at operating
temperature, the vehicle must have been
stationary for at least 30 minutes with the
engine turned off
Checking engine oil level with the oil
dipstick On the SLK 300 and SLK 350 you can check
the engine oil level with the oil dipstick.
X
Open the hood (Y page 192). X
Pull out oil dipstick :.
X Wipe oil dipstick : clean. Engine compartment
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Aspect ratio
Aspect ratio
; is the dimensional
relationship between tire section height and
section
width and is expressed in percentage.
The aspect ratio is arrived at by dividing
section height by section width.
Tire code
Tire code = indicates the tire construction
type. The “R” stands for radial tire type. Letter
“D” means diagonal or bias ply construction;
letter “B” means belted-bias ply construction.
At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18). For
additional information, see “Tire speed
rating” (Y page 214).
Rim diameter
Rim diameter ? is the diameter of the bead
seat, not the diameter of the rim edge. The
rim diameter is indicated in inches (in).
Load index G
Warning!
The tire load rating must always be at least
half of the GAWR of your vehicle. Otherwise,
tire
failure may be the result which may cause
an accident and/or serious injury to you or
others.
Always replace rims and tires with the same
designation, manufacturer and type as shown
on the original part. G
Warning!
Do not overload the tires by exceeding the
specified load limit as indicated on the Tire
and Loading Information placard on the
driver’s door B-pillar
. Overloading the tires
can overheat them, possibly causing a
blowout. Overloading the tires can also result
in handling or steering problems, or brake
failure.
Load index A is a numerical code associated
with the maximum load a tire can support. For example, a load rating of 91 corresponds
to a maximum load of 1356 lb (615 kg) the
tire is designed to support. See also
“Maximum
tire load” (Y page 209) where the
maximum load associated with the load index
is indicated in kilograms and lbs.
For additional information on the load index,
see “Load identification” (Y page 216).
Speed symbol G
Warning!
Even when permitted by law, never operate a
vehicle at speeds greater than the maximum
speed rating of the tires.
Exceeding
the maximum speed for which tires
are rated can lead to sudden tire failure,
causing loss of vehicle control and possibly
resulting in an accident and/or serious
personal injury and possible death, for you
and for others.
Regardless of the tire speed rating, local
speed limits should be obeyed. Use prudent
driving speeds appropriate to prevailing
conditions.
Speed symbol B indicates the approved
maximum speed (tire speed rating) for the
tire.
Summer tires Index Speed rating
Q up to 100 mph (160 km/h)
R up to 106 mph (170 km/h)
S up to 112 mph (180 km/h)
T up to 118 mph (190 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h)
W up to 168 mph (270 km/h)
Y up to 186 mph (300 km/h)
ZR...Y up to 186 mph (300 km/h)214
Tires and wheels
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Tire type code
Tire type code
? may, at the option of the
manufacturer, be used as a descriptive code
for identifying significant characteristics of
the tire.
Date of manufacture The date of manufacture
A identifies the
week and year of manufacture.
The first two figures identify the week,
starting with “01” to represent the first full
week of the calendar year. The second two
figures represent the year.
For example, “3208” represents the 32nd
week of 2008. Tire ply material
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and
may vary from data shown in above
illustration.
This marking tells you about the type of cord
and number of plies in the sidewall : and
under the tread ;. Tire and loading terminology
Accessory weight The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power seats, radio, and heater, to the extent that these
items are available as factory-installed
equipment (whether installed or not).
Air pressure The amount of air inside the tire pressing
outward on each square inch of the tire. Air
pressure is expressed in pounds per square
inch (psi), kilopascal (kPa), or bar.
Aspect ratio
Dimensional relationship between tire
section height and section width expressed
in percentage.
Bar
Metric unit for air pressure. There are
14.5038 pounds per square inch (psi) to
1 bar; there are 100 kilopascals (kPa) to 1 bar.
Bead
The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle has
been sitting for at least 3 hours or driven no
more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with standard
equipment including the maximum capacity
of fuel, oil, and coolant, and, if so equipped,
air conditioning and additional optional
equipment, but without passengers and
cargo.
DOT (Department of Transportation)
A tire branding symbol which denotes the tire
meets requirements of the U.S. Department
of Transportation. Tires and wheels
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Unlocking the driver’s door
X
Insert mechanical key ; into the driver’s
door lock.
X Turn mechanical key ; counterclockwise
to position 1 until the locking knob moves
up.
The driver’s door is unlocked.
X Pull the door handle to open the driver’s
door.
X Turn mechanical key ; back and remove
it from the driver’s door lock.
Unlocking the trunk A minimum height clearance of 5.78 ft
(1.76 m) is required to open the trunk lid.
X
Insert mechanical key = into the trunk lid
lock.
X Turn mechanical key = counterclockwise
to position 2 and simultaneously pull
handle : and lift trunk lid. !
When you open the trunk, the trunk lid
swings open upwards. Always make sure
there is sufficient overhead clearance.
X Turn mechanical key = back and remove
it from the trunk lid lock. Locking the vehicle
If you cannot lock the vehicle with the
SmartKey, lock it as follows:
X Open the driver’s door.
X Close the passenger door and the trunk.
X Press the central locking switch
(Y page 59).
X Check to see whether the locking knob on
the passenger door has moved down.
X If necessary, push it down manually.
X Exit the vehicle and close the driver’s door.
X Remove the mechanical key from the
SmartKey (Y page 264).
X Check whether the trunk is locked.
X If it is not locked, lock it with the
mechanical key ( Y page 61).
Except for the driver’s door, the vehicle
should now be locked. X
Insert mechanical key ; into the driver’s
door lock.
X Turn mechanical key ; clockwise to
position 1.
The driver’s door is locked.
X Turn mechanical key ; back and remove
it from the driver’s door lock. Unlocking/locking manually
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Mounting the spare wheel
Introduction X
Prepare the vehicle as described
(Y page 273).
X Take the following out of the vehicle:
R
spare wheel
R jack
R wheel wrench
R collapsible wheel chock
R wheel bolts for spare wheel
R alignment bolt
R electric air pump
For information on where to find the
respective items, see “Where will I find ...?”
(Y page 234) and ( Y page 235).
i Vehicles without spare wheel are not
factory-equipped
with the tools required for
a wheel change such as a jack or a wheel
wrench. Some tools required for a wheel
change are specific to your vehicle.
Contact an authorized Mercedes-Benz
Center to obtain the tools approved for
your vehicle. This section describes the
wheel change using the tools approved and
recommended for your vehicle.
Lifting the vehicle G
Warning!
When jacking up the vehicle, only use the jack
which has been specifically approved by
Mercedes-Benz for your vehicle.
The
jack is designed exclusively for jacking up
the vehicle at the jack take-up brackets built
into both sides of the vehicle. Make sure the
jack arm is fully seated in the jack take-up
bracket. The jack must always be vertical
when in use, especially on inclines or
declines.
The jack is intended only for lifting the vehicle
briefly for wheel changes. It is not suited for
performing maintenance work under the vehicle. To help avoid personal injury, use the
jack only to lift the vehicle during a wheel
change.
Never get beneath the vehicle while it is
supported by the jack. Keep hands and feet
away from the area under the lifted vehicle.
Always lower the vehicle onto sufficient
capacity
jackstands before working under the
vehicle.
Always engage the parking brake firmly and
block the wheels with wheel chocks or other
sizeable objects before raising the vehicle
with the jack. Do not disengage the parking
brake while the vehicle is raised.
Make sure that the ground on which the
vehicle is standing and where you place the
jack is solid, level and not slippery. If
necessary, use a large underlay. On slippery
surfaces, such as tiled floors, you should use
a non-slip underlay, for example a rubber mat.
Do not use wooden blocks or similar objects
to support the jack. Otherwise the jack may
not be able to achieve its load-bearing
capacity if it is not at its full height.
Never start the engine when the vehicle is
raised.
Also observe the notes on the jack.
X Prevent the vehicle from rolling away by
blocking
wheels with wheel chocks or other
sizeable objects.
When your vehicle is equipped with a wheel
chock, it is included with the vehicle tool kit
(Y page 234). For information on setting up
the collapsible wheel chock, see
(Y page 234).
When changing a wheel on a level surface:
X Place a wheel chock or other sizeable
object
in front of and another wheel chock
or other sizeable object behind the wheel
that is diagonally opposite to the wheel
being changed. Flat tire
277
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Vehicle specification SLK 300
(171.454)
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 SLK 300
Engine, type
272
Mode of operation
4-stroke engine,
gasoline injection No. of cylinders
6
Bore
3.46 in (88.00 mm)
Stroke
3.23 in (82.10 mm)
Total piston
displacement
182.8 cu in
(2 996 cm 3
) Compression
ratio
11.3:1
Output acc. to
SAE J 1349
17 228 hp/6
100 rpm
(170 kW/6 100 rpm) Maximum torque
acc.
to SAE J 1349 221 lb-ft/
2 500 - 5 000 rpm
(300 Nm/
2 500 - 5 000 rpm) Maximum engine
speed
6 500 rpm
Firing order
1-4-3-6-2-5
Poly-V-belt
2 401 mm
Electrical system SLK 300
Alternator
14 V/150 A
Starter motor
12 V/1.4 kW
Battery
12 V/74 Ah Electrical system SLK 300
Spark plugs, type
Bosch Y 7 MPP33
Spark plugs,
electrode gap
0.031 in (0.8 mm)
Spark plugs,
tightening torque
15 - 18 lb-ft
(20 - 25 Nm) Main dimensions SLK 300
Overall vehicle
length
161.7 in (4
107 mm) Overall vehicle
width
18 79.2 in (2
012 mm) Overall vehicle
height
51.0 in (1
296 mm) 60.8 in (1
545 mm) 19 Wheelbase
95.7 in (2
430 mm) Track, front
60.2 in (1
530 mm) Track, rear
61.0 in (1
549 mm) Turning circle
34.5 ft (10.5 m)
Weights SLK 300
Roof load
max. 110 lb (50 kg)
Trunk load
max. 220 lb (100 kg)
!
This
vehicle is not designed to carry items
on its roof. Roof rails and any roof-mounted
devices, unless expressly approved by
Mercedes-Benz for use on this vehicle
model, must not be used as they will
damage the vehicle and retractable
hardtop.
At time of printing, Mercedes-Benz does
not offer any roof racks or any other roof-
mounted devices for use on this vehicle.
17 Premium fuel required. Performance may vary with fuel octane rating.
18 Exterior rear view mirrors folded out.
19 When opening/closing hardtop. 294
Vehicle specification SLK 300 (171.454)
Technical data
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!
This vehicle is not designed to carry any
items on its trunk lid or accommodate any
type
of trunk lid rack or device. Using such
devices may damage the vehicle and
retractable hardtop mechanism. Vehicle specification SLK 350
(171.458)
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 SLK 350
Engine, type
272
Mode of operation
4-stroke engine,
gasoline injection No. of cylinders
6
Bore
3.66 in (92.90 mm)
Stroke
3.39 in (86.00 mm)
Total piston
displacement
213.5 cu in
(3 498 cm 3
) Compression
ratio
11.7:1
Output acc. to
SAE J 1349
20 300 hp/6
500 rpm
(224 kW/6 500 rpm) Maximum torque
acc.
to SAE J 1349 266 lb-ft/4
900 rpm
(360 Nm/4 900 rpm) Maximum engine
speed
7 200 rpm
Firing order
1-4-3-6-2-5
Poly-V-belt
2 401 mm Electrical system SLK 350
Alternator
14 V/180 A
Starter motor
12 V/1.4 kW
Battery
12 V/74 Ah
Spark plugs, type
Bosch Y 7 MPP33
Spark plugs,
electrode gap
0.031 in (0.8 mm)
Spark plugs,
tightening torque
15 - 18 lb-ft
(20 - 25 Nm) Main dimensions SLK 350
Overall vehicle
length
161.7 in (4
107 mm) Overall vehicle
width
21 79.2 in (2
012 mm) Overall vehicle
height
51.1 in (1
298 mm) 60.8 in (1
545 mm) 22 Wheelbase
95.7 in (2
430 mm) Track, front
60.1 in (1
526 mm) Track, rear
61.0 in (1
549 mm) Turning circle
34.5 ft (10.5 m)
Weights SLK 350
Roof load
max. 110 lb (50 kg)
Trunk load
max. 220 lb (100 kg)
!
This
vehicle is not designed to carry items
on its roof. Roof rails and any roof-mounted
devices, unless expressly approved by
Mercedes-Benz for use on this vehicle
model, must not be used as they will
20 Premium fuel required. Performance may vary with fuel octane rating.
21 Exterior rear view mirrors folded out.
22 When opening/closing hardtop. Vehicle specification SLK 350 (171.458)
295
Technical data
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damage the vehicle and retractable
hardtop.
At time of printing, Mercedes-Benz does
not offer any roof racks or any other roof-
mounted devices for use on this vehicle.
! This vehicle is not designed to carry any
items on its trunk lid or accommodate any
type
of trunk lid rack or device. Using such
devices may damage the vehicle and
retractable hardtop mechanism. Vehicle specification SLK 55 AMG
(171.473)
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 SLK 55 AMG
Engine, type
113
Mode of operation
4-stroke engine,
gasoline injection No. of cylinders
8
Bore
3.82 in (97.00 mm)
Stroke
3.62 in (92.00 mm)
Total piston
displacement
331.9 cu in
(5 439 cm 3
) Compression
ratio
11.0:1
Output acc. to
SAE J 1349
23 355 hp/5
750 rpm
(265 kW/5 750 rpm) Maximum torque
acc.
to SAE J 1349 376 lb-ft/4
000 rpm
(510 Nm/4 000 rpm) Maximum engine
speed
6 500 rpm Engine SLK 55 AMG
Firing order
1-5-4-2-6-3-7-8
Poly-V-belt
2 380 mm
Electrical system SLK 55 AMG
Alternator
14 V/150 A
Starter motor
12 V/1.7 kW
Battery
12 V/74 Ah
Spark plugs, type
NGK IFR 6D10
Spark plugs,
electrode gap
0.039 in (1.0 mm)
Spark plugs,
tightening torque
18 - 22 lb-ft
(25 - 30 Nm) Main dimensions SLK 55 AMG
Overall vehicle
length
161.5 in (4
103 mm) Overall vehicle
width
24 79.2 in (2
012 mm) Overall vehicle
height
50.7 in (1
287 mm) 60.4 in (1
535 mm) 25 Wheelbase
95.7 in (2
430 mm) Track, front
60.0 in (1
524 mm) Track, rear
61.0 in (1
549 mm) Turning circle
34.5 ft (10.5 m)
Weights SLK 55 AMG
Roof load
max. 110 lb (50 kg)
Trunk load
max. 220 lb (100 kg)
23
Premium fuel required. Performance may vary with fuel octane rating.
24 Exterior rear view mirrors folded out.
25 When opening/closing hardtop. 296
Vehicle specification SLK 55 AMG (171.473)
Technical data
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