winter tyres MERCEDES-BENZ SLK ROADSTER 2014 User Guide

tyre load rating and speed rating required for
your vehicle.
Pay special attention to country-specific
requirements for tyre approval. These
requirements can stipulate a specific tyre
type for your vehicle. Furthermore, the use of certain tyre types in certain regions and areas
of operation can be highly beneficial. You can find further information regarding tyres at
specialist tyre retailers, at qualified specialist
workshops or at any Mercedes-Benz Service
Centre.
R Only fit tyres and wheels of the same type
and make.
Exception: it is permissible to fit a different
type or make in the event of a flat tyre.
Observe the "MOExtended tyres (tyres with
run-flat characteristics" section
(Y page 296).
R Only fit tyres of the correct size onto the
wheels.
R Run in new tyres at moderate speeds for
the first 100 km. They only reach their full
performance after this distance.
R Do not drive with tyres which have too little
tread depth. This otherwise significantly
reduces the traction on wet roads (aqua-
planing).
R Replace the tyres after six years at the lat-
est, regardless of wear.
Observe the notes on the emergency spare
wheel (Y page 334). MOExtended tyres (tyres with run-flat
characteristics)
With MOExtended tyres (tyres with run-flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tyres.
Only use MOExtended tyres in conjunction
with an activated tyre pressure loss warning
system or tyre pressure monitoring system
and only on tyres specifically inspected by
Mercedes ‑Benz. Notes on driving with MOExtended tyres with
a flat tyre (Y page 296).
i Vehicles with MOExtended tyres are not
equipped with a TIREFIT kit at the factory. It
is therefore recommended that you addi-
tionally equip your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat
characteristics, e.g. winter tyres. A TIREFIT
kit can be obtained from a qualified spe-
cialist workshop. Winter operation
General notes
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing a wheel" section (Y page 323). Driving with summer tyres
At temperatures below +7 †, summer tyres
lose elasticity and therefore traction and
braking power. Change the tyres on your vehi- cle to M+S tyres. Using summer tyres at very
cold temperatures could cause tears to form, thereby damaging the tyres permanently.
Mercedes-Benz cannot accept responsibility
for this type of damage. G
WARNING
Damaged tyres can cause tyre inflation pres-
sure loss. As a result, you could lose control of your vehicle. There is a risk of accident.
Check the tyres regularly for signs of damageand replace any damaged tyres immediately. M+S tyres
G
WARNING
M+S tyres with a tyre tread depth of less than 4 mm are not suitable for use in winter as they
do not provide sufficient traction. There is a
risk of accident. 316
Winter operationWheels and tyres

M+S tyres with a tread depth of less than
4 mm must be replaced.
At temperatures below +7 †, use winter tyres or all-season tyres. Both are marked with
M+S.
Only winter tyres bearing the isnowflake
symbol in addition to the M+S marking pro-
vide the best possible grip in wintry road con- ditions.
Only these tyres will allow driving safety sys-
tems such as ABS and ESP ®
to function opti-
mally in winter. These tyres have been devel-
oped specifically for driving in snow.
Use M+S tyres of the same make and tread on all wheels to maintain safe handling charac-
teristics.
Always observe the maximum permissible
speed specified for the M+S tyres you have
fitted.
If you fit M+S tyres that have a lower maxi-
mum permissible speed than that of the vehi-
cle, affix an appropriate warning sign in the
driver's field of vision. This can be obtained at
a qualified specialist workshop.
Under these circumstances, you should also
restrict the maximum speed of the vehicle
using permanent SPEEDTRONIC so that it
does not exceed the maximum permissible
speed for the M+S tyres (Y page 182).
When you have fitted the M+S tyres:
X Check the tyre pressures (Y page 318).
X Restart the tyre pressure loss warning sys-
tem (Y page 320).
For more information on driving with the
emergency spare wheel, see (Y page 334).Snow chains
G
WARNING
If you have fitted snow chains to the front
wheels, they may scrape against the vehicle
body or chassis components. This could cause damage to the vehicle or the tyres.
There is a risk of an accident.
To avoid hazardous situations:
R never fit snow chains on the front wheels
R fit snow chains to the rear wheels in pairs.
! Vehicles with steel wheels:
if you fit
snow chains on steel wheels, you may dam-
age the hub caps. Remove the hub caps
from the relevant wheels before fitting the
snow chains.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specifically approved for your vehi- cle by Mercedes-Benz, or that are of a corre-
sponding standard of quality.
If you intend to fit snow chains, please bear
the following points in mind:
R snow chains cannot be fitted to all wheel-
tyre combinations. Permissible wheel-tyre
combinations (Y page 328).
R only use snow chains if the road surface is
completely snow-covered. Remove the
snow chains as soon as possible when you
come to a road that is not snow-covered.
R local regulations may restrict the use of
snow chains. Observe the appropriate reg- ulations if you wish to fit snow chains.
R do not exceed the maximum permissible
speed of 50 km/h.
i You may wish to deactivate ESP ®
when
pulling away with snow chains fitted
(Y page 63). This way you can allow the
wheels to spin in a controlled manner, ach-
ieving an increased driving force (cutting
action).
For more information on driving with the
emergency spare wheel, see (Y page 334). Winter operation
317Wheels and tyres Z

Mercedes-Benz accepts no liability for
damage resulting from the use of tyres,
wheels or accessories other than those tes- ted and approved.
Further information about wheels, tyres
and approved combinations can be
obtained from any qualified specialist
workshop.
! Retreaded tyres are neither tested nor
recommended by Mercedes-Benz, since
previous damage cannot always be detec-
ted on retreaded tyres. As a result,
Mercedes-Benz cannot guarantee vehicle
safety if retreaded tyres are fitted. Do not fit
used tyres if you have no information about their previous usage.
! Large wheels: the lower the section width
for a certain wheel size, the lower the ride
comfort is on poor road surfaces. Roll com-
fort and suspension comfort are reduced
and the risk of damage to the wheels and
tyres as a result of driving over obstacles
increases.
Overview of abbreviations used in the follow-
ing tyre tables:
R BA: both axles
R FA: front axle
R RA: rear axle
You will find a table with recommended tyre
pressures for various operating conditions on
the inside of your vehicle's fuel filler flap. For
further information on tyre pressure, see
(Y page 318). Check tyre pressures regularly
and only when the tyres are cold.
Notes on the vehicle equipment – always fit
the vehicle:
R with tyres of the same size on a given axle
(left/right)
R with the same type of tyres at a given time
(summer tyres, winter tyres, MOExtended
tyres)
Exception: it is permissible to fit a different
type or make in the event of a flat tyre.
Observe the "MOExtended tyres (tyres with run-flat characteristics" section
(Y
page 296).
Vehicles with MOExtended tyres are not
equipped with a TIREFIT kit at the factory. It is
therefore recommended that you additionally equip your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat characteris-
tics, e.g. winter tyres. A TIREFIT kit can be
obtained from a qualified specialist work-
shop.
i Not all wheel/tyre combinations can be
fitted at the factory in all countries. Wheel and tyre combinations
329Wheels and tyres Z

Tyres
SLK 200 Summer tyres
R16
Tyres Light-alloy wheels
BA: 205/5
5 R16 91 V 1 BA: 7.0 J x 16 H2 ET 37.5
BA: 205/55 R16 91 V
1 BA: 7.0 J x 16 H2 ET 38
FA: 205/55 R16 91 V
1
RA: 225/50 R16 92 V 1, 2 FA: 7.0 J x 16 H2 ET 37.5
RA: 8.0 J x 16 H2 ET 33.5
R17
Tyres Light-alloy wheels
FA: 225/45 R17 91 W
3
RA: 245/40 R17 91 W 2, 3, 4 FA: 7.5 J x 17 H2 ET 42
RA: 8.5 J x 17 H2 ET 36
R18
Tyres Light-alloy wheels
FA: 225/40 R18 92 Y XL
5
RA: 245/35 R18 92 Y XL 2, 4, 5 FA: 7.5 J x 18 H2 ET 42
RA: 8.5 J x 18 H2 ET 36
Winter tyres
R16
Tyres Light-alloy wheels
BA: 205/55 R16 91 H M+S
i1 BA: 7.0 J x 16 H2 ET 37.5
BA: 205/55 R16 91 H M+S
i1 BA: 7.0 J x 16 H2 ET 38
R17
Tyres Light-alloy wheels
BA: 225/45 R17 91 H M+S
i2 BA: 7.5 J x 17 H2 ET 42
1
Not in conjunction with Sports Package (Code 950/952).
2 Additional requirements necessary (additional wheel-arch extension on wheel cutout of rear axle).
3 Available as MOExtended tyres.
4 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 Observe notes on "Large wheels" in the "Wheel/tyre combinations" section. 330
Wheel and tyre combinationsWheels and tyres

SLK 250
Summer tyres
R16
Tyres Light-alloy wheels
BA: 205/55 R16 91 W
1 BA: 7.0 J x 16 H2 ET 38
R17
Tyres Light-alloy wheels
FA: 225/45 R17 91 W
3
RA: 245/40 R17 91 W 2, 3, 4 FA: 7.5 J x 17 H2 ET 42
RA: 8.5 J x 17 H2 ET 36
R18
Tyres Light-alloy wheels
FA: 225/40 R18 92 Y XL
5
RA: 245/35 R18 92 Y XL 2, 4, 5 FA: 7.5 J x 18 H2 ET 42
RA: 8.5 J x 18 H2 ET 36
Winter tyres
R16
Tyres Light-alloy wheels
BA: 205/55 R16 91 H M+Si
1 BA: 7.0 J x 16 H2 ET 38
R17
Tyres Light-alloy wheels
BA: 225/45 R17 91 H M+Si
2 BA: 7.5 J x 17 H2 ET 42
1
Not in conjunction with Sports Package (Code 950/952).
3 Available as MOExtended tyres.
2 Additional requirements necessary (additional wheel-arch extension on wheel cutout of rear axle).
4 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 Observe notes on "Large wheels" in the "Wheel/tyre combinations" section. Wheel and tyre combinations
331Wheels and tyres Z

SLK 250 CDI
Summer tyres
R16
Tyres Light-alloy wheels
FA: 205/55 R16 91 W
1
RA: 225/50 R16 92 W 1, 2 FA: 7.0 J x 16 H2 ET 37.5
RA: 8.0 J x 16 H2 ET 33.5
FA: 205/55 R16 91 W
1
RA: 225/50 R16 92 W 1 FA: 7.0 J x 16 H2 ET 38
RA: 7.5 J x 16 H2 ET 45.5
R17
Tyres Light-alloy wheels
FA: 225/45 R17 91 W
3
RA: 245/40 R17 91 W 2, 3, 4 FA: 7.5 J x 17 H2 ET 42
RA: 8.5 J x 17 H2 ET 36
R18
Tyres Light-alloy wheels
FA: 225/40 R18 92 Y XL
5
RA: 245/35 R18 92 Y XL 2, 4, 5 FA: 7.5 J x 18 H2 ET 42
RA: 8.5 J x 18 H2 ET 36
Winter tyres
R16
Tyres Light-alloy wheels
BA: 205/55 R16 91 H M+Si
1 BA: 7.0 J x 16 H2 ET 37.5
BA: 205/55 R16 91 H M+Si
1 BA: 7.0 J x 16 H2 ET 38
R17
Tyres Light-alloy wheels
BA: 225/45 R17 91 H M+Si
2 BA: 7.5 J x 17 H2 ET 42
1
Not in conjunction with Sports Package (Code 950/952).
2 Additional requirements necessary (additional wheel-arch extension on wheel cutout of rear axle).
3 Available as MOExtended tyres.
4 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 Observe notes on "Large wheels" in the "Wheel/tyre combinations" section. 332
Wheel and tyre combinationsWheels and tyres

SLK 350
Summer tyres
R17
Tyres Light-alloy wheels
FA: 225/45 R17 91 W
3
RA: 245/40 R17 91 W 2, 3, 4 FA: 7.5 J x 17 H2 ET 42
RA: 8.5 J x 17 H2 ET 36
R18
Tyres Light-alloy wheels
FA: 225/40 R18 92 Y XL
5
RA: 245/35 R18 92 Y XL 2, 4, 5 FA: 7.5 J x 18 H2 ET 42
RA: 8.5 J x 18 H2 ET 36
Winter tyres
R17
Tyres Light-alloy wheels
BA: 225/45 R17 91 H M+Si
2 BA: 7.5 J x 17 H2 ET 42
SLK 55 AMG
Summer tyres
R18
Tyres Light-alloy wheels
FA: 235/40 ZR18 95 Y XL
RA: 255/35 ZR18 94 Y XL 4, 5 FA: 8.0 J x 18 H2 ET 43
RA: 9.0 J x 18 H2 ET 42
Winter tyres
R18
Tyres Light-alloy wheels
BA: 235/40 R18 95 V XL M+S
i BA: 8.0 J x 18 H2 ET 43
FA: 235/40 R18 95 V XL M+Si
RA: 255/35 R18 94 V XL M+Si 4, 5 FA: 8.0 J x 18 H2 ET 43
RA: 9.0 J x 18 H2 ET 42
3
Available as MOExtended tyres.
2 Additional requirements necessary (additional wheel-arch extension on wheel cutout of rear axle).
4 Use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5 Observe notes on "Large wheels" in the "Wheel/tyre combinations" section. Wheel and tyre combinations
333Wheels and tyres Z

i
When the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion.
i The coolant is checked at every mainte-
nance interval at a qualified specialist
workshop. Windscreen washer system and head-
lamp cleaning system
Important safety notes G
WARNING
If windscreen washer concentrate comes into contact with hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure the windscreen washer concen-
trate does not come into contact with the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
! Only the washer fluids SummerFit and
WinterFit can be mixed. Otherwise, the
spraying nozzles could become blocked.
When handling washer fluid, observe the
important safety notes on service products
(Y page 342).
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Sum-
merFit.
X Mix 1 part MB SummerFit to 100 parts
water. At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Winter-
Fit.
Adapt the mixing ratio to the outside temper-
ature.
R Down to Ò10 †: mix 1 part MB WinterFit to
2 parts water.
R Down to Ò20 †: mix 1 part MB WinterFit to
1 part water.
R Down to Ò29 †: mix 2 parts MB WinterFit to
1 part water.
i Add washer fluid concentrate, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round. Vehicle data
General notes
Please note that for the specified vehicle
data:
R the heights specified may vary as a result
of:
- tyres
- load
- condition of the suspension
- optional equipment
R optional equipment reduces the maximum
payload.
R vehicle-specific weight information can be
found on the vehicle identification plate
(Y page 342).
R only for certain countries: you can find vehi-
cle-specific vehicle data in the COC docu-
ments (CERTIFICATE OF CONFORMITY).
These documents are delivered with your
vehicle. Vehicle data
349Technical data Z