service indicator MERCEDES-BENZ SLK-Class 2015 R172 Owner's Manual

Increased vehicle weight due to
optional equipment (definition) ...... 330
Kilopascal (kPa) (definition) ........... 330
Labeling (overview) ........................ 326
Load bearing index (definition) ...... 331
Load index .....................................3 28
Load index (definition) ................... 331
M+S tires ....................................... 312
Maximum loaded vehicle weight
(definition) ..................................... 330
Maximum load on a tire (defini-
tion) ............................................... 331
Maximum permissible tire pres-
sure (definition) ............................ .331
Maximum tire load ......................... 328
Maximum tire load (definition) ....... 331
MOExtended tires .......................... 312
Optional equipment weight (defi-
nition) ............................................ 331
Overview ........................................ 310
PSI (pounds per square inch) (def-
inition) .......................................... .331
Replacing ....................................... 332
Service life ..................................... 312
Sidewall (definition) ....................... 331
Speed rating (definition) ................ 330
Storing .......................................... .332
Structure and characteristics
(definition) ..................................... 329
Summer tires ................................. 312
Temperature .................................. 325
TIN (Tire Identification Number)
(definition) ..................................... 331
Tire bead (definition) ..................... .331
Tire pressure (definition) ................ 331
Tire pressures (recommended) ...... 330
Tire size (data) ............................... 337
Tire size designation, load-bearing capacity, speed rating .................... 326
Tire tread ....................................... 311
Tire tread (definition) ..................... 331
Total load limit (definition) ............. 332
Traction ......................................... 325
Traction (definition) ....................... 332
Tread wea r..................................... 325
Uniform Tire Quality Grading
Standards ...................................... 324 Uniform Tire Quality Grading
Standards (definition) .................... 330
Wear indicator (definition) ............. 332
Wheel and tire combination ........... 339
Wheel rim (definition) .................... 330
see Flat tire
Towing
Important safety guidelines ........... 303
Installing the towing eye ................ 304
Removing the towing eye ............... 304
With the rear axle raised ................ 305
Towing away
With both axles on the ground ....... 305
Tow-starting
Emergency engine starting ............ 306
Important safety notes .................. 303
Installing the towing eye ................ 304
Removing the towing eye ............... 304
Transmission
Selector lever ................................ 151
see Automatic transmission
see Manual transmission
Transporting the vehicle .................. 305
Trim pieces (cleaning instruc-
tions) .................................................. 288
Trip computer (on-board com-
puter) .................................................. 197
Trip odometer Calling up ....................................... 197
Resetting (on-board computer) ...... 198
Trunk
Emergency release .......................... 82
Important safety notes .................... 80
Locking separately ........................... 82
Opening/closing (manually from
outside) ............................................ 81
Opening (automatically from out-
side) ................................................. 82
Overview .......................................... 80
Trunk lid
Display message ............................ 240
Opening/closing .............................. 80
Opening dimensions ...................... 353
Trunk load (maximum) ...................... 35318
Index

Protection against theft
Immobilizer
X To activate with the SmartKey: remove
the SmartKey from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
i The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be star-
ted (yet the vehicle's battery is charged),
the system is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada). ATA (anti-theft alarm system)
X
To arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp 0043flashes. The alarm sys-
tem is armed after approximately
15 seconds.
X To deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO. A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the trunk lid
R the hood
R the glove box
R the stowage space under the armrest
X To turn the alarm off with the SmartKey:
press the 0036or0037 button on the
SmartKey.
The alarm is switched off.
or X Insert the SmartKey into the ignition lock.
The alarm is switched off.
X To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The Smart-
Key must be outside the vehicle.
The alarm is switched off.
or X Press the Start/Stop button on the dash-
board. The SmartKey must be inside the
vehicle.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
i If the alarm continues for more than
30 seconds, the mbrace emergency call
system automatically notifies the Cus-
tomer Assistance Center. This is done
either by text message or data connection.
The emergency call system sends the mes- sage or data provided that:
R you have subscribed to the mbrace ser-
vice.
R the mbrace service has been activated
properly.
R the necessary mobile phone network is
available. Protection against theft
69Safety Z

system is activated and operational. To log in,
press the 00D9MB Info call button. If any of
the steps mentioned are not carried out, the
system may not be activated.
If you have questions about the activation,
contact one of the following telephone hot-
lines:
R USA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367
Shortly after successfully registering with the
service, a user ID and password will be sent to you by post.
USA only: you can use this password to log
onto the mbrace area under "Owners Online"
at http://www.mbusa.com.
The system is available if:
R it has been activated and is operational
R the corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
R a service subscription is available
R the starter battery is sufficiently charged
i Determining the location of the vehicle on
a map is only possible if:
R GPS reception is available.
R the vehicle position can be forwarded to
the Customer Assistance Center.
The mbrace system To adjust the volume during a call, proceed as
follows:
X Press the 0081or0082 button on the mul-
tifunction steering wheel.
or
X Use the volume controller of the audio sys-
tem/COMAND. The system offers various services, e.g.:
R Automatic and manual emergency call
R Roadside Assistance call
R MB Info call
USA only: you can find information and a
description of all available features under
"Owners Online" at http://www.mbusa.com.
System self-test After you have switched on the ignition, the
system carries out a self-diagnosis.
A malfunction in the system has been detec-
ted if one of the following occurs:
R The indicator lamp in the SOS button does
not come on during the system self-test.
R The indicator lamp in the 0052Roadside
Assistance button does not light up during
self-diagnosis of the system.
R The indicator lamp in the 00D9MB Info call
button does not light up during self-diag-
nosis of the system.
R The indicator lamp in one or more of the
following buttons continues to light up red
after the system self-diagnosis:
- SOS button
- 0052 Roadside Assistance call button
- 00D9 MB Info call button
R After the system self-diagnosis, the Inop‐ Inop‐
erative
erative orService Not Activated
Service Not Activated
message appears in the multifunction dis-
play.
If a malfunction is indicated as outlined
above, the system may not operate as expec-
ted. In the event of an emergency, help will
have to be summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R USA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367 262
FeaturesStowage and features

Emergency call
Important safety notes
G
WARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an emergency if:
R you see smoke inside or outside of the vehi-
cle, e.g. if there is a fire after an accident
R the vehicle is on a dangerous section of
road
R the vehicle is not visible or cannot easily be
seen by other road users, particularly whendark or in poor visibility conditions
There is a risk of an accident and injury.
Leave the vehicle immediately in this or simi-
lar situations as soon as it is safe to do so.
Move to a safe location along with other vehi-
cle occupants. In such situations, secure the
vehicle in accordance with national regula-
tions, e. g. with a warning triangle.
You must have a license agreement to acti-
vate the mbrace service. Make sure that your
system is activated and operational. To reg-
ister, press the 00D9MB Info call button. If
any of the steps mentioned are not carried
out, the system may not be activated.
If you have questions about the activation,
contact one of the following telephone hot-
lines:
R USA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372 )or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367
General notes
An emergency call is dialed automatically if an air bag or Emergency Tensioning Device is
triggered.
i You cannot end an automatically trig-
gered emergency call yourself.
An emergency call can also be initiated man- ually. As soon as the emergency call has been ini-
tiated, the indicator lamp in the SOS button
flashes. The multifunction display shows the
Connecting Call
Connecting Call message.
The audio output is muted.
Once the connection has been made, the
Call Connected Call Connected message appears in the
multifunction display.
All important information on the emergency is
transmitted, for example:
R current location of the vehicle (as deter-
mined by the GPS system)
R vehicle identification number
R information on the severity of the accident
Shortly after the emergency call has been ini- tiated, a voice connection is automatically
established between the Customer Assis-
tance Center and the vehicle occupants.
R If the vehicle occupants respond, the
Mercedes-Benz Customer Assistance Cen-
ter attempts to get more information on the emergency.
R If there is no response from the vehicle
occupants, an ambulance is immediately
sent to the vehicle.
If no voice connection can be established to
the Mercedes-Benz Customer Assistance
Center, the system has been unable to initiate an emergency call.
This can occur, for example, if the relevant
mobile phone network is not available. The
indicator lamp in the SOS button flashes con- tinuously.
The Call Failed Call Failed message appears in the
multifunction display and must be confirmed.
In this case, summon assistance by other
means. Features
263Stowage and features Z

Making an emergency call
X
To initiate an emergency call manually:
press cover 0043briefly to open.
X Press SOS button 0044briefly.
The indicator lamp in SOS button 0044
flashes until the emergency call is conclu-
ded.
X Wait for a voice connection to the
Mercedes-Benz Customer Assistance Cen-
ter.
X After the emergency call, close cover 0043.
i If the mobile phone network is unavaila-
ble, mbrace will not be able to make the
emergency call. If you leave the vehicle
immediately after pressing the SOS button,
you will not know whether mbrace placed
the emergency call. In this case, always
summon assistance by other means.
Roadside Assistance button X
Press Roadside Assistance button 0043.
This initiates a call to the Mercedes-Benz
Customer Assistance Center. The indicator lamp in Roadside Assistance
button
0043flashes while the call is active.
The multifunction display shows the Con‐ Con‐
necting Call necting Call message. The audio output
is muted.
If a connection can be made, the Call Con‐
Call Con‐
nected
nected message appears in the multifunction
display.
If a mobile phone network and GPS reception are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center, for example:
R current location of the vehicle
R vehicle identification number
i The audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu
by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
A voice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
From the vehicle remote malfunction diagno- sis, the Mercedes-Benz Customer Assistance
Center can ascertain the nature of the prob-
lem (Y page 268).
The Mercedes-Benz Customer Assistance
Center either sends a qualified Mercedes-
Benz technician or makes arrangements for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center.
You may be charged for services such as
repair work and/or towing.
Further details are available in your mbrace
manual.
i The system has not been able to initiate a
Roadside Assistance call, if:
R the indicator lamp for Roadside Assis-
tance call button 0043is flashing continu-
ously.
R no voice connection to the Mercedes-
Benz Customer Assistance Center was
established. 264
FeaturesStowage and features

This can occur if the relevant mobile phone
network is not available, for example.
The Call Failed
Call Failed message appears in the
multifunction display.
X To end a call: press the0076button on the
multifunction steering wheel.
or
X Press the corresponding button for ending
a phone call on the audio system or on
COMAND.
MB Info call button X
Press MB Info call button 0043.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in MB Info call button 0043
flashes while the connection is being made.
The multifunction display shows the Con‐ Con‐
necting
necting Call
Callmessage. The audio system
is muted.
If a connection can be made, the Call Con‐
Call Con‐
nected
nected message appears in the multifunction
display.
If a mobile phone network and GPS reception are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center, for example:
R current location of the vehicle
R vehicle identification number
i The audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
A voice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
You receive information about operating your vehicle, about the nearest authorized
Mercedes-Benz Center and about other prod-
ucts and services from Mercedes-Benz.
USA only: you can find further information on
the mbrace system under "Owners Online" at
http://www.mbusa.com.
i The system has not been able to initiate
an MB Info call, if:
R the indicator lamp in MB Info call but-
ton 0043is flashing continuously.
R no voice connection to the Mercedes-
Benz Customer Assistance Center was
established.
This can occur if the relevant mobile phone network is not available, for example.
The Call Failed
Call Failed message appears in the
multifunction display.
X To end a call: press the0076button on the
multifunction steering wheel.
or
X Press the corresponding button for ending
a phone call on the audio system or on
COMAND.
Call priority When service calls are active, e.g. Roadside
Assistance or MB Info calls, an emergency
call can still be initiated. In this case, an emer-
gency call will take priority and override all
other active calls.
The indicator lamp of the respective button
flashes until the call is ended.
An emergency call can only be terminated by the Mercedes-Benz Customer Assistance
Center. Features
265Stowage and features Z

R
if you push or pull the battery across the
carpet or other synthetic materials
R if you wipe the battery with a cloth G
WARNING
During the charging process, a battery produ- ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
R Never place metal objects or tools on a bat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
R Never connect or disconnect the battery
terminals while the engine is running. G
WARNING
Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with water and seek medical attention. H
Environmental note Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment. Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe- cialist workshop or a special
collection point for used bat-
teries.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the Main-
tenance Booklet or contact a qualified spe-
cialist workshop for more information.
! You should have all work involving the
battery carried out at a qualified specialist
workshop. In the exceptional case that it is
necessary for you to disconnect the battery yourself, make sure that:
R you switch off the engine and remove the
key. On vehicles with KEYLESS-GO,
ensure that the ignition is switched off.
Check that all the indicator lamps in the
instrument cluster are off. Otherwise,
electronic components, such as the
alternator, may be damaged.
R you first remove the negative terminal
clamp and then the positive terminal
clamp. Never swap the terminal clamps.
Otherwise, the vehicle's electronic sys-
tem may be damaged.
R in vehicles with automatic transmission,
the transmission is locked in position P
after disconnecting the battery. The vehi-
cle is secured against rolling away. You
can then no longer move the vehicle.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
In order for the battery to achieve the maxi-
mum possible service life, it must always be
sufficiently charged.
Comply with safety precautions and take pro-
tective measures when handling batteries. 298
Battery (vehicle)Breakdown assistance

The jump-starting connection point is in the
engine compartment.
If, at low temperatures, the indicator lamps/
warning lamps in the instrument cluster do
not light up, it is highly likely that the dis-
charged battery has frozen. In this case, you
may neither charge the battery nor jump-start
the vehicle. The service life of a thawed-out
battery may be shorter. The starting charac-
teristics can be impaired, particularly at low
temperatures. Have the thawed-out battery
checked at a qualified specialist workshop.
Read the battery charger's operating instruc- tions before charging the battery.
X Open the hood.
X Connect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor bat-
tery in the jump-starting procedure
(Y page 301). 300
Battery (vehicle)Breakdown assistance

Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of a positive terminal and a ground point, in the engine compartment. G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek
medical attention. G
WARNING
During charging and jump-starting, explosive gases can escape from the battery. There is a risk of an explosion.
Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ven-
tilation while charging and jump-starting. Do not lean over a battery. G
WARNING
During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks
are created, the hydrogen gas can ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a connected battery does not come into contact with
vehicle parts.
R Never place metal objects or tools on a battery.
R It is important that you observe the described order of the battery terminals when connecting
and disconnecting a battery.
R When jump-starting, make sure that the battery poles with identical polarity are connected.
R It is particularly important to observe the described order when connecting and disconnecting
the jumper cables.
R Never connect or disconnect the battery terminals while the engine is running. G
WARNING
A discharged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
! Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
If, at low temperatures, the indicator lamps/warning lamps in the instrument cluster do not
light up, it is highly likely that the discharged battery has frozen. In this case, you may neither
charge the battery nor jump-start the vehicle. The service life of a thawed-out battery may be
shorter. The starting characteristics can be impaired, particularly at low temperatures. Have
the thawed-out battery checked at a qualified specialist workshop. Jump-starting
301Breakdown assistance Z

other obstacles. If it is necessary to drive over
curbs, speed humps or similar elevations, try to do so slowly and at an obtuse angle. Oth-
erwise, the tires, particularly the sidewalls,
may be damaged. Regular checking of wheels and tires
G
WARNING
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control of your vehicle. There is a risk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
Regularly check the wheels and tires of your
vehicle for damage at least once a month, as well as after driving off-road or on rough
roads. Damaged wheels can cause a loss of
tire pressure. Pay particular attention to dam-
age such as:
R cuts in the tires
R punctures
R tears in the tires
R bulges on tires
R deformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width of the tire (Y page 311). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tire surface.
All wheels must have a valve cap to protect
the valve against dirt and moisture. Do not
mount anything onto the valve other than the standard valve cap or other valve caps
approved by Mercedes-Benz for your vehicle.
Do not use any other valve caps or systems,
e.g. tire pressure monitoring systems.
Regularly check the pressure of all the tires
particularly prior to long trips. Adjust the tire pressure as necessary (Y page 314).
Observe the notes on the emergency spare
wheel (Y page 341). The service life of tires depends on the fol-
lowing factors amongst other things:
R Driving style
R Tire pressure
R Distance covered Important safety notes on the tire
tread
G
WARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk of hydroplaning increases, in particular where speed is not adapted to suit the driving con-
ditions. There is a risk of accident.
If the tire pressure is too high or too low, tires
may exhibit different levels of wear at differ-
ent locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
R Summer tires: 00CEin (3 mm)
R M+S tires: 00CFin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached. Bar indicator
0043for tread wear is integrated
into the tire tread.
Treadwear indicators (TWI) are required by
law. Six indicators are positioned on the tire
tread. They are visible once the tread depth is Operation
311Wheels and tires Z