2014 MERCEDES-BENZ SLK-CLASS ROADSTER Owners Manual

Tires
SLK 250 Summer tires
R17
Tires Alloy wheels
FA: 225/4
5 R17 91 W 5
RA : 245/40 R17 91 W 5, 6 FA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 17 H2
Wheel offset: 1.42 in (36 mm)
R18
Tires Alloy wheels
FA: 225/40 R18 92 Y XL
RA: 245/35 R18 92 Y XL
6 FA: 7.5 J x 18 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 18 H2
Wheel offset: 1.42 in (36 mm)
Winter tires
R17
Tires Alloy wheels
BA: 225/45 R17 91 H M+S
i5 BA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
SLK 350
Summer tires
R17
Tires Alloy wheels
FA: 225/45 R17 91 W
5
RA: 245/40 R17 91 W 5, 6 FA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 17 H2
Wheel offset: 1.42 in (36 mm)
5
Also available as MOExtended tires.
6 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section. Wheel and tire combinations
335Wheels and tires Z

R18
Tires Alloy wheels
FA: 225/40 R18 92 Y XL
RA: 245/35 R18 92 Y XL
6 FA: 7.5 J x 18 H2
Wheel offset: 1.65 in (42 mm)
RA: 8.5 J x 18 H2
Wheel offset: 1.42 in (36 mm)
Winter tires
R17
Tires Alloy wheels
BA: 225/45 R17 91 H M+S
i5 BA: 7.5 J x 17 H2
Wheel offset: 1.65 in (42 mm)
SLK 55 AMG
Summer tires
R18
Tires Alloy wheels
FA: 235/40 ZR18 95 Y XL
RA: 255/35 ZR18 94 Y XL
6 FA: 8.0 J x 18 H2
Wheel offset: 1.69 in (43 mm)
RA: 9.0 J x 18 H2
Wheel offset: 1.65 in (42 mm)
Winter tires
R18
Tires Alloy wheels
BA: 235/40 R18 95 V XL M+S
i BA: 8.0 J x 18 H2
Wheel offset: 1.69 in (43 mm)
FA: 235/40 R18 95 V XL M+S
i
RA: 255/35 R18 94 V XL M+S i6 FA: 8.0 J x 18 H2
Wheel offset: 1.69 in (43 mm)
RA: 9.0 J x 18 H2
Wheel offset: 1.65 in (42 mm)
6
Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 Also available as MOExtended tires. 336
Wheel and tire combinationsWheels and tires

Emergency spare wheel
Important safety notes
G
WARNING
The wheel or tire size as well as the tire type
of the spare wheel or emergency spare wheel
and the wheel to be replaced may differ.
Mounting an emergency spare wheel may
severely impair the driving characteristics.
There is a risk of an accident.
To avoid hazardous situations:
R adapt your driving style accordingly and
drive carefully.
R never mount more than one spare wheel or
emergency spare wheel that differs in size.
R only use a spare wheel or emergency spare
wheel of a different size briefly.
R do not switch ESP ®
off.
R have a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
When using an emergency spare wheel or
spare wheel of a different size, you must not
exceed the maximum speed of 50 mph
(80 km/h).
Snow chains must not be mounted on
emergency spare wheels. General notes
You should regularly check the pressure of
the emergency spare wheel, particularly prior
to long trips, and correct the pressure as
necessary (Y page 310). The applicable value
is found on the wheel or under "Technical
data" ( Ypage 340).
An emergency spare wheel may also be
mounted against the direction of rotation.
Observe the time restriction on use as well as
the speed limitation specified on the
emergency spare wheel. Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel.
i
When you are driving with the collapsible
spare wheel mounted, the tire pressure
loss warning system or the tire pressure
monitor cannot function reliably. Only
restart the tire pressure loss warning
system/the tire pressure monitor when the
damaged wheel has been replaced with a
new wheel.
Vehicles with tire pressure monitor:
after mounting an emergency spare wheel,
the system may still display the tire
pressure of the removed wheel for a few
minutes. The value displayed for the
mounted emergency spare wheel is not the
same as the current tire pressure of the
emergency spare wheel. Removing the emergency spare wheel
(Example)
The collapsible spare wheel can be found in
the stowage well under the trunk floor.
X
Lift and remove the reversible floor panel
in the trunk (Y page 256).
X Turn retaining screw ;counter-clockwise
and remove it.
X Remove collapsible spare wheel :. Emergency spare wheel
337Wheels and tires Z

AMG vehicles
AMG vehicles:
the collapsible spare wheel is
packed in a bag and attached to a bracket in
the trunk.
X Loosen tensioning straps :on both sides.
X Unhook spring hooks ;and =tensioning
strap :from the bracket.
X Remove the emergency spare wheel bag
with the emergency collapsible spare
wheel.
X Open the bag and remove the emergency
collapsible spare wheel.
Always observe the instructions and safety
notes in the "Mounting a wheel" section
(Y page 329). Stowing the emergency spare wheel
! Only place the collapsible spare wheel in
the vehicle when it is dry. Otherwise,
moisture may get into the vehicle.
Take the following steps to stow a used
collapsible spare wheel. Otherwise, the
collapsible spare wheel will not install in the
trunk in the intended manner. Mercedes-
Benz recommends that you have this work
carried out at a qualified specialist workshop.
X Unscrew the valve cap from the valve.
X If possible, unscrew the valve insert from
the valve and release the air.
i Fully deflating the tires can take a few
minutes.
X Screw the valve insert back into the valve. X
Screw the valve cap back on.
X Pull the protective sheet provided with the
spare wheel over the collapsible spare
wheel.
X Stow the collapsible spare wheel in the
emergency spare wheel well under the
trunk.
X Use the retaining screw to pierce the
protective sheet and fasten the collapsible
spare wheel in place.
X AMG vehicles: pull the bag over the
collapsible spare wheel and close it.
X Place the bag with the collapsible spare
wheel in the trunk.
X Hook in the retaining strap carabiners and
lash the collapsible spare wheel to the
bracket. Inflating the collapsible spare wheel
! Inflate the collapsible spare wheel using
the tire inflation compressor before
lowering the vehicle. The wheel rim could
otherwise be damaged.
! Do not operate the tire inflation
compressor for longer than ten minutes at
a time without a break. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down. X
Mount the collapsible spare wheel as
described (Y page 329).338
Emergency spare wheelWheels and tires

The collapsible spare wheel must be
mounted before it is inflated.
X Pull plug ?out of the housing.
X Take the air hose out of the housing.
X Insert the yellow hose connector of the air
hose into the guide in the housing and push
it into the fixture until the hose connector
engages.
X Remove the cap from the valve on the
collapsible spare wheel.
X Screw union nut :on the air hose onto the
valve.
X Make sure the tire inflation compressor's
on/off switch Ais set to OFF.
X Insert plug ?into the socket of the
cigarette lighter or into a 12 V power socket
in your vehicle.
Observe the notes on the cigarette lighter
(Y page 258). Observe the notes on
sockets (Y page 258).
X Turn the SmartKey to position 1in the
ignition lock (Y page 139).
X Press on/off switch Aon the tire inflation
compressor to ON.
The tire inflation compressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge =.
X Inflate the tire to the specified tire
pressure.
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
X When the specified tire pressure has been
reached, press on/off switch AtoOFF, on
the tire inflation compressor.
The tire inflation compressor is switched
off.
X Turn the SmartKey to position 0in the
ignition lock.
X If the tire pressure is higher than the
specified pressure, press pressure release
button ;until the correct tire pressure has
been reached. X
Unscrew union nut :on the air hose from
the valve.
X Screw the cap onto the valve of the
collapsible spare wheel again. Removing an air hose
X
To remove the hose from the tire inflation
compressor, push down the rocker switch
on the hose connector and pull out the
hose.
X Stow plug ?and the air hose in the lower
section of the blower housing.
X Stow the tire inflation compressor in the
vehicle. Emergency spare wheel
339Wheels and tires Z

Technical data
All models (except for AMG vehicles) Collapsible emergency spare wheel
7Tires Alloy wheels
145/70-17 92 P
Tire pressure: 350 kPa (3.5 bar/51 psi) 4.5 B x 17 H2
Wheel offset: 0.47 in (12 mm)
AMG vehicles
Collapsible spare wheel
Tires Alloy wheels
175/55 - 18 95P
Tire pressure: 350 kPa (3.5 bar/51 psi) 6.0 B x 18 H2
Wheel offset: 0.98 in (25 mm)
Depending on the country, the engine and the wheels mounted, your vehicle may be equipped
with TIREFIT or a collapsible spare wheel.
i The specified tire pressure is printed in yellow on the emergency spare wheel.
7 Use of snow chains is not permitted. Observe the notes in the section on snow chains. 340
Emergency spare
wheelWheels and tires

Useful information
............................342
Information regarding technical
data .................................................... 342
Warranty ............................................ 342
Identification plates .........................342
Service products and filling capaci-
ties ..................................................... 344
Vehicle data ...................................... 350 341Technical data

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 24).Information regarding technical data
General information
i The data stated here specifically refers to
a vehicle with standard equipment. Consult
an authorized Mercedes-Benz Center for
the data for all vehicle variants and trim
levels. Information in the printed Operator's
Manual
In the printed Operator's Manual you can find
information about:
R Vehicle data
R Opening dimensions of the trunk lid
R Tank capacity
R Coolant (engine)
R Engine oil approval and capacity
R Refrigerant filling capacity and PAG oil Warranty
Your vehicle is covered under the terms of the
warranties printed in the Service and
Warranty Information booklet. Your authorized Mercedes-Benz Center
replaces and repairs all factory-fitted parts in
accordance with the following warranty terms
and conditions:
R
New Vehicle Limited Warranty
R Emission Systems Warranty
R Emission Performance Warranty
R California, Connecticut, Maine,
Massachusetts, New York, Pennsylvania,
Rhode Island and Vermont Emission
Control System Warranty
R State warranty enforcement laws (Lemon
Laws)
Replacement parts and accessories are
covered by the Mercedes-Benz Parts and
Accessories warranties. These are available
at any authorized Mercedes-Benz Center.
i If you lose the Service and Warranty
Information booklet, contact an authorized
Mercedes-Benz Center to arrange a
replacement. The new Service and
Warranty Information booklet will be
mailed to you. Identification plates
Vehicle identification plate with
vehicle identification number (VIN)
X
Open the driver's door.
You will see vehicle identification plate :.342
Identification platesTechnical data