2014 MERCEDES-BENZ SL-Class tire pressure

Tires
Problem Possible causes/consequences and
0050
0050Solutions 0077
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
G WARNING
With tire pressures which are too low, there is a risk of the
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 175).
X Observe the additional display messages in the multifunction
display.
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 557).
X Check the tire pressure (Y page 583).
X If necessary, correct the tire pressure. 0077
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit.
The tire pressure monitor is faulty.
G WARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop. 284
Warning and indicator lampsOn-board computer and displays

until "L
REAR " (left screen) or "REAR R"
(right screen) is highlighted in the window.
X Select Aux
Auxin the menu using the
006300590065 buttons on the remote
control and press the 008Bbutton to confirm.
X Select Source
Source from the AUX menu and
press the 008Bbutton to confirm.
X Select Display Aux Display Aux and press the008B
button to confirm.
You will see and hear the content of the
video source if it is switched to playback. If
no video image is available from the AUX
source connected, you will see an audio
menu.
Adjusting treble and bass X
Select Treble Treble orBass
Bass in the AUX menu
and press the 008Bbutton on the remote
control to confirm.
An adjustment scale appears.
X Select a setting using the 0063or0064
button and press the 008Bbutton to confirm.
Adjusting the brightness, contrast or
color X
Select Display Aux Display Aux orDisc Drive Aux
Disc Drive Aux
in the AUX menu and press the 008Bbutton
to confirm.
X Select Brightness
Brightness, Contrast
ContrastorColor
Color
and press the 008Bbutton to confirm.
An adjustment scale appears.
X Select a setting using the 0063or0064
button and press the 008Bbutton to confirm.
Changing the picture format X
Select Display Aux
Display Aux orDisc Drive Aux
Disc Drive Aux
in the AUX menu and press the 008Bbutton
to confirm.
X Select 16:9 Optimized
16:9 Optimized ,4:3
4:3 or
Widescreen
Widescreen using the00630064 buttons
and press the 008Bbutton to confirm.
The dot in front of a menu item indicates
the current setting. SIRIUS Weather
Your COMAND equipment
These operating instructions describe all the
standard and optional equipment for your
COMAND system, as available at the time of
going to print. Country-specific differences
are possible. Please note that your COMAND
system may not be equipped with all the
features described. Introduction
i This function is currently not available for
Canada.
For the reception of weather forecasts via
satellite radio, you will need a SIRIUS XM
Satellite Weather subscription.
When the Call SIRIUS to activate Call SIRIUS to activate
system
system at
at888-539-7474
888-539-7474 message with the
SIRIUS device identification number appears,
you will first have to obtain access to the
weather service. A description of the
procedure can be found in the "Registering
satellite radio" section (Y page 441).
COMAND can receive weather forecasts via
satellite radio for the entire USA (including
Alaska and Hawaii). The received weather
data can be displayed as an information chart
(daily forecast, five-day forecast, detailed
information) or on the weather map.
The weather data received from a weather
station is stored in COMAND for one hour. It
can therefore be displayed again immediately
after restarting the engine (for example after
refueling).
The weather map can display the following
weather data with symbols:
R rain radar
R storm characteristics
R areas of high-pressure/low-pressure,
weather fronts
R course of tropical cyclones (hurricanes,
typhoons)
R wind direction and speeds SIRIUS Weather
507COMAND Z

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

G
WARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown
assistance, as it is unable to seal the tire
properly:
R there are cuts or punctures in the tire larger
than those mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures
or on a flat tire.
There is a risk of an accident.
Do not drive any further. Contact a qualified
specialist workshop. G
WARNING
The tire sealant is harmful and causes
irritation. It must not come into contact with
your skin, eyes or clothing or be swallowed.
Do not inhale TIREFIT fumes. Keep tire sealant
away from children. There is a risk of injury.
If you come into contact with the tire sealant,
observe the following:
R Rinse off the tire sealant from your skin
immediately with water.
R If the tire sealant comes into contact with
your eyes, immediately rinse them
thoroughly with clean water.
R If tire sealant is swallowed, immediately
rinse your mouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
R Immediately change out of clothing which
has come into contact with tire sealant.
R If an allergic reaction occurs, seek medical
attention immediately.
! Do not operate the tire inflation
compressor for longer than eight minutes
at a time without a break. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down. Using the TIREFIT kit
TIREFIT sticker, 2-part
X
Do not remove any foreign objects which
have penetrated the tire, e.g. screws or
nails.
X Remove the tire sealant bottle, the
accompanying TIREFIT sticker and the tire
inflation compressor from the stowage well
underneath the trunk floor (Y page 556).
X Affix part 0043of the TIREFIT sticker within
the driver's field of vision.
X Affix part 0044of the TIREFIT sticker near the
valve on the wheel with the defective tire. X
Pull plug 0085with the cable and hose 0083out
of the housing.
X Screw hose 0083onto flange 0084of tire
sealant bottle 0043.
X Place tire sealant bottle 0043head
downwards into recess 0044of the tire
inflation compressor. Flat tire
559Breakdown assistance Z

X
Remove the cap from valve 006Bon the faulty
tire.
X Screw filler hose 006Conto valve.
X Insert plug 0085into 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 526). Observe the notes on
sockets (Y page 526).
X Turn the SmartKey to position 1in the
ignition lock (Y page 155).
X Press on/off switch 0087on the tire inflation
compressor to I.
The tire inflation compressor is switched
on. The tire is inflated.
i First, tire sealant is pumped into the tire.
The pressure can briefly rise to
approximately 500 kPa (5.0 bar/73 psi).
Do not switch off the tire inflation
compressor during this phase.
X Allow the tire inflation compressor to run
for five minutes. The tire should then have
attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
If a tire pressure of 180 kP a(1 .8 ba r/26 psi)
has been attained after five minutes:
(Y page 560).
If a tire pressure of 180 kPa (1.8 ba r/26 psi)
has not been attained after five minutes:
(Y page 560).
i If tire sealant leaks out, allow it to dry. It
can then be removed like a layer of film. If your clothes are soiled with tire sealant,
have them cleaned with perchloroethylene
at a dry cleaner as soon as possible.
Tire pressure not reached If a tire pressure of 180 kPa
(1.8 ba r/26 psi)
has not been attained after five minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Very slowly drive forwards or reverse
approximately 30 ft (10 m).
X Pump up the tire again.
After a maximum of five minutes the tire
pressure must be at least 180 kPa (1.8 bar/
26 psi). G
WARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tire
pressure that is too low can significantly
impair the vehicle's braking and driving
characteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
Tire pressure reached G
WARNING
A tire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitable for higher speeds. There is a risk of
accident.
You should therefore adapt your driving style
accordingly and drive carefully. Do not exceed
the specified maximum speed with a tire that
has been repaired using tire sealant.
! Residue from the tire sealant may come
out of the filler hose after use. This could
cause stains.
Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit. 560
Flat tireBreakdown assistance

H
Environmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at a qualified specialist
workshop.
If a tire pressure of 180 kPa (1.8 ba r/26 psi)
has been achieved after a maximum period of
ten minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Pull away immediately.
The maximum speed for a tire sealed with
tire sealant is 50 mph (80 km/h). The upper
part of the TIREFIT sticker must be affixed
to the instrument cluster in the driver's
field of vision.
X Stop after driving for approximately ten
minutes and check the tire pressure with
the tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi). G
WARNING
If the required tire pressure is not reached
after driving for a short period, the tire is too
badly damaged. The tire sealant cannot repair
the tire in this instance. Damaged tires and a
tire pressure that is too low can significantly
impair the vehicle's braking and driving
characteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
X Correct the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi) (for the values,
see the Tire and Loading Information
placard on the driver's side B-pillar or tire
pressure table on the fuel filler flap).
X To increase the tire pressure: switch on
the tire inflation compressor. X
To reduce the tire pressure: depress
pressure release button 0043next to
pressure gauge 0044.
X When the tire pressure is correct, unscrew
the filler hose from the valve of the sealed
tire.
X Screw the valve cap onto the tire valve of
the sealed tire.
X Pull the tire sealant bottle out of the tire
inflation compressor.
The filler hose remains attached to the tire
sealant bottle.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Drive to the nearest qualified specialist
workshop and have the tire changed there.
X Have the tire sealant bottle replaced as
soon as possible at a qualified specialist
workshop.
X Have the tire sealant bottle replaced every
four years at a qualified specialist
workshop. Battery (vehicle)
Important safety notes
Special tools and expert knowledge are
required when working on the battery, e.g.
removal and installing. You should therefore
have all work involving the battery carried out
at a qualified specialist workshop. Battery (vehicle)
561Breakdown assistance Z

Useful information
............................576
Important safety notes ....................576
Operation ........................................... 576
Winter operation ............................... 578
Tire pressure ..................................... 579
Loading the vehicle ..........................586
All about wheels and tires ...............589
Changing a wheel ............................. 596
Wheel and tire combinations ...........602 575Wheels and tires