tire size MERCEDES-BENZ SL-Class 2014 R131 Owner's Manual

Important safety notes
..................583
Restarting ...................................... 585
Warning lamp ................................. 284
Warning message .......................... 585
Tires
Aspect ratio (definition) .................596
Average weight of the vehicle
occupants (definition) ....................594
Bar (definition) ............................... 594
Changing a wheel .......................... 596
Characteristics .............................. 594
Checking ........................................ 577
Definition of terms .........................594
Direction of rotatio n...................... 597
Display message ............................ 267
Distribution of the vehicle
occupants (definition) ....................596
DOT, Tire Identification Number
(TIN) .............................................. .593
DOT (Department of
Transportation) (definition) ............594
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 595
GVW (Gross Vehicle Weight)
(definition) ..................................... 595
GVWR (Gross Vehicle Weight
Rating) (definition) .........................595
Important safety notes ..................576
Increased vehicle weight due to
optional equipment (definition) ......595
Kilopascal (kPa) (definition) ...........595
Labeling (overview )........................ 590
Load bearing index (definition) ......596
Load index ..................................... 593
Load index (definition) ...................595
M+S tires ....................................... 578
Maximum loaded vehicle weight
(definition) ..................................... 595
Maximum load on a tire (definition) 595
Maximum permissible tire
pressure (definition) ....................... 595
Maximum tire loa d......................... 593
Maximum tire load (definition) .......595
MOExtended tires ..........................578
Optional equipment weight
(definition) ..................................... 596
Overview ........................................ 576PSI (pounds per square inch)
(definition)
..................................... 595
Replacing ....................................... 597
Service life ..................................... 578
Sidewall (definition) .......................596
Speed rating (definition) ................595
Storing ........................................... 597
Structure and characteristics
(definition) ..................................... 594
Summer tires ................................. 578
Temperature .................................. 590
TIN (Tire Identification Number)
(definition) ..................................... 596
Tire bead (definition) ......................596
Tire pressure (definition) ................596
Tire pressures (recommended )...... 594
Tire size (data) ............................... 602
Tire size designation, load-bearing
capacity, speed rating .................... 590
Tire tread ....................................... 577
Tire tread (definition) .....................596
Total load limit (definition) .............596
Traction ......................................... 589
Traction (definition) .......................596
Tread wea r..................................... 589
Uniform Tire Quality Grading
Standards ...................................... 589
Uniform Tire Quality Grading
Standards (definition) ....................594
Unladen weight (definition) ............595
Wear indicator (definition) .............596
Wheel rim (definition) ....................595
see Flat tire
Tone settings
Balance and fader ..........................300
Towing
Important safety guidelines ...........567
Installing the towing eye ................568
Removing the towing eye ...............569
With the rear axle raised ................569
Towing away
With both axles on the ground .......569
Tow-starting
Emergency engine starting ............570
Important safety notes ..................567
Track
Selecting (CD, DVD, MP3) .............. 452
Selecting using the number keypad 452 Index
25

Wheels
Changing a wheel .......................... 596
Checking ........................................ 577
Cleaning ......................................... 550
Cleaning (warning) .........................597
Important safety notes ..................576
Interchanging/changing ................597
Mounting a new wheel ...................600
Mounting a wheel .......................... 597
Overview ........................................ 576
Removing a wheel ..........................600
Storing ........................................... 597
Tightening torque ........................... 601
Wheel size/tire size .......................602
Windows
see Side windows
Wind screen
Electrical wind screen ....................106
Manual wind screen .......................105
Windshield
Defrosting ...................................... 147
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid .......................545
Notes ............................................. 614
Windshield wipers
Display message ............................ 271
Problem (malfunction) ...................137
Replacing the wiper blades ............135
Switching on/off ........................... 134
Winter driving
Important safety notes ..................578
Slippery road surfaces ...................183
Snow chains .................................. 579
Winter operation
Overview ........................................ 578
Winter tires
M+S tires ....................................... 578
Wiper blades
Cleaning ......................................... 551
Important safety notes ..................135
Replacing ....................................... 135
Wooden trim (cleaning instructions) 553
Workshops see Qualified specialist workshop Z
ZAGAT ®
rating service ...................... 343
ZONE function Switching on/off ........................... 14728
Index

ESP
®
may otherwise destroy the brake
system.
When towing the vehicle with the rear axle
raised, observe the notes on
ESP ®
(Y page 569).
ESP ®
is deactivated if the 00BBwarning lamp
in the instrument cluster lights up
continuously when the engine is running.
If the 00E5 warning lamp and the 00BB
warning lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 277) and display messages which
may be shown in the instrument cluster
(Y page 245).
i Only use wheels with the recommended
tire sizes. Only then will ESP ®
function
properly.
Characteristics of ESP ®General information
If the
00E5 ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the 00E5ESP®
warning
lamp flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any
circumstances.
X Only depress the accelerator pedal as far
as necessary when pulling away.
X Adapt your driving style to suit the
prevailing road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving. The engine starts
automatically when the driver wants to pull
away again. ESP ®
remains in its previously
selected status. Example:if ESP®
was
deactivated before the engine was switched off, ESP
®
remains deactivated when the
engine is switched on again.
Deactivating/activating ESP ®
(except
AMG vehicles) Important safety notes
i
Observe the "Important safety notes"
section ( Ypage 70).
You can select between the following states
of ESP ®
:
R ESP ®
is activated.
R ESP ®
is deactivated. G
WARNING
If you deactivate ESP ®
, ESP ®
no longer
stabilizes the vehicle. There is an increased
risk of skidding and an accident.
Only deactivate ESP ®
in the situations
described in the following.
It may be best to deactivate ESP ®
in the
following situations:
R when using snow chains
R in deep snow
R on sand or gravel
i Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilize the
vehicle if the vehicle starts to skid or a
wheel starts to spin.
! Avoid spinning the driven wheels for an
extended period with ESP ®
deactivated.
You could otherwise damage the drivetrain. 74
Driving safety systemsSafety

In addition, thermal imaging camera
0043is
integrated in the radiator grill. The camera
helps detect pedestrians and animals.
Observe the notes on cleaning the thermal
imaging camera and cleaning the windshield
(Y page 552).
Important safety notes Night View Assist Plus is only an aid and is not
a substitute for attentive driving. Do not rely
on the Night View Assist Plus display. You are
responsible for the distance to the vehicle in
front, for vehicle speed and for braking in
good time. Drive carefully and always adapt
your driving style to suit the prevailing road
and traffic conditions.
The system may be impaired or may not
function if:
R if there is poor visibility, e.g. due to snow,
rain, fog or spray
R if the windshield is dirty, fogged up or
covered, for instance by a sticker, in the
vicinity of the camera
R if the thermal imaging camera in the
radiator grill is dirty, fogged up or covered
R on bends, hilltops or downhill gradients
R at high outside temperatures
Night View Assist Plus cannot display objects
directly in front of or beside the vehicle. The
actual distance to objects and pedestrians
cannot be gaged accurately by looking at a
screen.
It may be the case that other objects are
marked or highlighted as well as pedestrians
and animals. Pedestrian and animal recognition General notes
Pedestrian or animal recognition may be
impaired or inoperative if:
R
pedestrians or animals are partially or
entirely obscured by other objects, e.g.
parked vehicles
R the silhouette of the pedestrian or of the
animal in the Night View Assist Plus display
is incomplete or interrupted, e.g. by
powerful light reflections
R pedestrians or animals do not contrast with
the surroundings
R the camera system no longer recognizes
pedestrians as persons due to special
clothing or other objects
R pedestrians are not in an upright position,
e.g. sitting, squatting or lying
R animals are not recognized by the system,
e.g. because of their size or shape
The pedestrian and animal recognition is
deactivated at temperatures above 90 ‡
(32 †). The spotlight function and automatic
delayed switch-off are then no longer active.
Pedestrian recognition 0043
Night View Assist Plus display in the
COMAND display
0044 Readiness symbol for active pedestrian
recognition
0087 Highlighting
0085 Pedestrian recognized
Night View Assist Plus can recognize
pedestrians using typical characteristics, e.g. Driving systems
215Driving and parking Z

Problems with the loading aid
Problem Possible causes/consequences and
0050
0050Solutions It is no longer possible
to lower the stowed
roof in the trunk using
the loading aid. You cannot close the trunk any more.
X
Call a qualified specialist workshop. Stowage well under the trunk floor
X
To open: open trunk partition
0087 (Ypage 104).
X Swing trunk floor 0085up by loop 0044.
X Pull hook with Velcro attachment 0043off the
underside of trunk floor 0085.
X Attach hook with Velcro attachment 0043to
trunk partition 0087by its handle.
The TIREFIT kit, tire-change tool kit, etc. are
located in the stowage compartment. Features
Cup holder
Important safety notes !
Only use the cup holders for containers of
the right size and which have lids. The
drinks could otherwise spill. Cup holder in the center console
X
To open: open stowage compartment
0087(Y page 521).
X To remove the insert: slide catches0043
inwards in the direction of the arrow.
X Remove the cup holder insert upwards.
X To re-install the insert: place the insert in
stowage compartment 0087.
X Slide catches 0043outwards in the direction
of the arrow until they engage.
You can remove the cup holder's rubber mat
for cleaning. Clean with clear, lukewarm
water only.
Reducer 0044can be removed. Large and small
containers can then be placed in the cup
holder.
X To remove: grasp reducer 0044and pull
upwards in the direction of the arrow.
X To insert: insert reducer 0044into the cup
holder in the opposite direction of the
arrow and press it down firmly. 524
FeaturesStowage and features

Tire-change tool kit
0043
Bag containing the tire-changing tools
X Open the trunk lid.
X Open the trunk partition (Y page 104).
X Lift the trunk floor upwards (Y page 524).
i Depending on the equipment, tools
required for a wheel change, such as a jack
or a lug wrench, are not available in all
vehicles. Tools approved for your vehicle
are available at a qualified specialist
workshop.
Bag with the tire-changing tools 0043contains:
R Jack
R Lug wrench
R Alignment bolt
R Wheel chock
R Gloves Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
R MOExtended tires (tires with run-flat
properties) (Y page 557)
R a TIREFIT kit (Y page 558)
Information on changing/mounting a wheel
(Y page 596).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazard warning lamps. X
Secure the vehicle against rolling away
(Y page 175).
X If possible, bring the front wheels into the
straight-ahead position.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics now have status
0. This is the same as the SmartKey having
been removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 155).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while a wheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to
traffic conditions when doing so.
X Close the driver's door. MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires. The affected
tire must not show any clearly visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-
bearing capacity and the speed index
(Y page 590).
MOExtended tires may only be used in
conjunction with an active tire pressure loss Flat tire
557Breakdown assistance

warning system or with an active tire pressure
monitor.
If the pressure loss warning message
appears in the multifunction display:
R Observe the instructions in the display
messages ( Ypage 267).
R Check the tire for damage.
R If driving on, observe the following notes.
The maximum driving distance is
approximately 50 miles (80 km) when the
vehicle is partially laden and approximately
18 miles (30 km) when the vehicle is fully
laden.
In addition to the vehicle load, the driving
distance possible depends upon:
R Speed
R Road condition
R Outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving
conditions/maneuvers, or it can be increased
through a moderate style of driving.
The maximum permissible distance which
can be driven in run-flat mode is counted from
the moment the tire pressure loss warning
appears in the multifunction display.
You must not exceed a maximum speed of
50 mph (80 km/h).
i When replacing one or all tires, make sure
that you use only tires:
R of the size specified for the vehicle and
R marked "MOExtended"
If a tire has gone flat and cannot be
replaced with a MOExtended tire, a
standard tire may be used as a temporary
measure. Make sure that you use the
proper size and type (summer or winter
tire).
i Vehicles equipped with MOExtended tires
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 mount tires that do not feature run-flat properties, e.g. winter tires.
A TIREFIT kit is available, for example, from
a qualified specialist workshop.
Important safety notes G
WARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when
cornering, accelerating quickly and when
braking. There is a risk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to a laden
vehicle.
Stop driving in emergency mode if:
R you hear banging noises.
R the vehicle starts to shake.
R you see smoke and smell rubber.
R ESP ®
is intervening constantly.
R there are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked at a qualified specialist
workshop with regard to their further use. The
defective tire must be replaced in every case. TIREFIT kit
Important safety notes TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up
to 0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside
temperatures down to
00F84 ‡ (00F820 †).558
Flat tireBreakdown assistance

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 33).Important safety notes
G
WARNING
If wheels and tires of the wrong size are used,
the wheel brakes or suspension components
may be damaged. There is a risk of an
accident.
Always replace wheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
R designation
R model
When replacing tires, make sure to use the
correct:
R designation
R manufacturer
R model G
WARNING
A flat tire severely impairs the driving,
steering and braking characteristics of the
vehicle. There is a risk of accident.
Tires without run-flat characteristics:
R do not drive with a flat tire.
R immediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop. Tires with run-flat characteristics:
R
pay attention to the information and
warning notices on MOExtended tires (tires
with run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benz or are not being
used correctly can impair operating safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist
workshop and inquire about:
R suitability
R legal stipulations
R factory recommendations
Information on dimensions and types of
wheels and tires for your vehicle can be found
(Y page 602).
Information on air pressure for the tires on
your vehicle can be found:
R on the vehicle's Tire and Loading
Information placard on the B-pillar
R on the tire pressure label on the fuel filler
flap
R under "Tire pressure" Operation
Information on driving
If the vehicle is heavily loaded, check the tire
pressures and correct them if necessary.
While driving, pay attention to vibrations,
noises and unusual handling characteristics,
e.g. pulling to one side. This may indicate that
the wheels or tires are damaged. If you
suspect that a tire is defective, reduce your
speed immediately. Stop the vehicle as soon
as possible to check the wheels and tires for
damage. Hidden tire damage could also be
causing the unusual handling characteristics.
If you find no signs of damage, have the tires
and wheels checked at a qualified specialist
workshop.
When parking your vehicle, make sure that
the tires do not get deformed by the curb or 576
OperationWheels and tires

is approximately
00CDin (1.6 mm). If this is the
case, the tire is so worn that it must be
replaced. Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same
type and make.
Exception: it is permissible to install a
different type or make in the event of a flat
tire. Observe the "MOExtended tires (tires
with run-flat characteristics" section
(Y page 557).
R Only mount tires of the correct size onto
the wheels.
R Break in new tires at moderate speeds for
the first 60 miles (100 km). They only reach
their full performance after this distance.
R Do not drive with tires which have too little
tread depth, as this significantly reduces
the traction on wet roads (hydroplaning).
R Replace the tires after six years at the
latest, regardless of wear. MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires.
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system or with an active tire pressure
monitor and on wheels specifically tested by
Mercedes-Benz.
Notes on driving with MOExtended tires with
a flat tire (Y page 557).
i Vehicles equipped with MOExtended tires
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 mount tires that do not
feature run-flat properties, e.g. winter tires. A TIREFIT kit can be obtained from a
qualified specialist 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 597). Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your
vehicle to M+S tires. Using summer tires at
very cold temperatures could cause cracks to
form, thereby damaging the tires
permanently. Mercedes-Benz cannot accept
responsibility for this type of damage. M+S tires
G
WARNING
M+S tires with a tire tread depth of less than
00CF in (4 mm) are not suitable for use in winter
and do not provide sufficient traction. There
is a risk of an accident.
M+S tires with a tread depth of less than 00CF
in (4 mm) must be replaced immediately.
At temperatures below 45 ‡ (+7 †), use
winter tires or all-season tires. Both types of
tire are identified by the M+S marking.
Only winter tires bearing the 004Dsnowflake
symbol in addition to the M+S marking
provide the best possible grip in wintry road
conditions.
Only these tires will allow driving safety
systems such as ABS and ESP ®
to function
optimally in winter. These tires have been
developed specifically for driving in snow. 578
Winter operationWheels and tires

Use M+S tires of the same make and tread on
all wheels to maintain safe handling
characteristics.
Always observe the maximum permissible
speed specified for the M+S tires you have
mounted.
Once the winter tires are mounted:
X Check the tire pressures (Y page 583).
X Restart the tire pressure monitor
(Y page 583). Snow chains
G
WARNING
If snow chains are installed to the front
wheels, they may drag against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tires.
There is a risk of an accident.
To avoid hazardous situations:
R never install snow chains to the front
wheels
R always install snow chains in pairs to the
rear wheels.
! You must drive at raised vehicle level
(level 1) if snow chains have been mounted.
The vehicle may otherwise be damaged.
! On some tire sizes there is not enough
space for snow chains. To avoid damage to
the vehicle or tires, observe the "Wheel and
tire combinations" section under "Tires and
wheels".
For safety reasons, Mercedes-Benz
recommends that you only use snow chains
that have been specially approved for your
vehicle by Mercedes-Benz, or are of a
corresponding standard of quality. If you intend to mount snow chains, please
bear the following points in mind:
R
Snow chains may not be mounted on all
wheel/tire combinations. Permissible
wheel-tire combinations (Y page 602).
R Only use snow chains when driving on
roads completely covered by snow.
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
regulations if you wish to install snow
chains.
R Do not exceed the maximum permissible
speed of 30 mph (50 km/h).
R On vehicles with Active Body Control (ABC),
you must drive at a raised vehicle level if
snow chains have been installed
(Y page 198).
i You may wish to deactivate ESP ®
when
pulling away with snow chains installed
(Y page 73). You can thereby allow the
wheels to spin in a controlled manner,
achieving an increased driving force
(cutting action). Tire pressure
Tire pressure specifications
Important safety notes G
WARNING
Tires with tire pressures that are too low or
too high are associated with the following
hazards:
R they can burst, in particular if the vehicle is
heavily laden or when driven at high
speeds.
R the tires can wear excessively and/or
unevenly, which can severely impair tire
traction.
R the driving, steering and braking
characteristics may be severely impaired. Tire pressure
579Wheels and tires
Z