2019 MERCEDES-BENZ SLC warning light

Oil
see Engine oil
On-board computer
AMG menu .....................................179
Assistance menu ........................... 174
Audio menu ................................... 173
Convenience submenu .................. 178
Display messages .......................... 182
Displaying a service message ........245
Factory settings submenu ............. 179
Important safety notes .................. 167
Instrument cluster submenu .......... 176
Lighting submenu .......................... 176
Menu overview .............................. 170
Message memory .......................... 182
Navigation menu ............................ 171
Operation ....................................... 168
RACETIMER ................................... 180
Service menu ................................. 176
Settings menu ............................... 176
Standard display............................ 170
Telephone menu ............................ 173
Trip menu ...................................... 170
Vehicle submenu ........................... 178
Video DVD operation ..................... 173
Operating safety
Declaration of conformity ................ 26
Important safety notes .................... 26
Operating system
see On-board computer
Operation
Digital Operator's Manual................ 22
Operator's Manual
Vehicle equipment ........................... 24
Outside temperature display........... 167
Overhead control panel...................... 36
P
Paddle shifters
see Steering wheel paddle shifters
Paint code number............................ 297
Paintwork (cleaning instructions)... 247
Panic alarm.......................................... 38
Parking
Important safety notes .................. 134
Parking brake ................................ 135
Position of exterior mirror, front-
passenger side ................................. 94
Rear view camera .......................... 159
see PARKTRONIC
Parking aid
Parking Guidance ........................... 156
see Exterior mirrors
see PARKTRONIC
Parking Assist PARKTRONIC
Deactivating/activating ................. 155
Important safety notes .................. 153
Problems (malfunctions) ................ 156
Sensor range................................. 154
Warning display ............................. 155
Parking brake
Applying automatically................... 136
Applying or releasing manually ...... 136
Display message ............................ 185
Electric parking brake .................... 135
Emergency braking ........................ 136
General notes ................................ 135
Releasing automatically................. 136
Warning lamp ................................. 212
Parking Guidance
Display message ............................ 199
Important safety notes .................. 156
Parking lamps
Switching on/off.............................. 98
PARKTRONIC
Driving system ............................... 153
Function/notes............................. 153
PASSENGER AIR BAG
Display message ............................ 191
Indicator lamps ................................ 39
Problems (malfunction) .................. 191
Pets in the vehicle............................... 56
Phone book
see also Digital Operator's Man-
ual .................................................. 217
Pivoting draft stop
see AIRGUIDE
Power washers.................................. 247
Power windows
see Side windows
PRE-SAFE®(anticipatory occu-
pant protection)
Display message ............................ 188
14Index

Operation ......................................... 53
Protection against theft
ATA (Anti-Theft Alarm system) ......... 64
Immobilizer ...................................... 64
Protection of the environment
General notes ..................................23
Pulling away
Automatic transmission ................. 120
General notes ................................ 120
Q
QR code
Mercedes-Benz Guide App ................. 1
Rescue card .....................................28
Qualified specialist workshop........... 27
R
RACE TIMER (on-board computer,
Mercedes-AMG vehicles).................. 180
Radio
Selecting a station .........................173
see Digital Operator's Manual
Radio mode
see also Digital Operator's Man-
ual ..................................................217
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 26
REACH Regulation............................... 27
Reading lamp..................................... 101
Rear fog lamp
Display message ............................ 193
Switching on/off .............................. 98
Rear lamps
see Lights
Rear view camera
Cleaning instructions ..................... 250
Display in the multimedia system .. 160
Function/notes .............................159
Switching on/off ........................... 159
Rear window defroster
General notes ................................ 113
Problem (malfunction) ................... 114
Switching on/off ........................... 113
Rear-view mirror
Anti-glare (manual) .......................... 92
Dipping (automatic) ......................... 93
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 303
Refueling
Fuel gauge ....................................... 32
Important safety notes .................. 132
Refueling process .......................... 133
see Fuel
Remote control
Programming (garage door
opener) .......................................... 235
Replacing bulbs
High-beam headlamps ................... 103
Important safety notes .................. 101
Installing/removing the cover
(front wheel arch) .......................... 102
Low-beam headlamps .................... 102
Overview of bulb types .................. 102
Reporting safety defects.................... 28
Rescue card......................................... 28
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 197
Warning lamp ................................. 213
Residual heat (climate control)........114
Restraint system
Display message ............................ 189
Introduction ..................................... 38
Warning lamp ................................. 212
Warning lamp (function) ................... 39
Reverse gear
Engaging (automatic transmis-
sion) ............................................... 126
Reversible floor panel (trunk).......... 227
Reversing feature
Side windows ................................... 75
Reversing lamps (display mes-
sage)................................................... 193
Roadside Assistance (breakdown).... 25
Roof
Display message ............................ 205
Important safety notes .................... 78
Opening/closing (with roof
switch) ............................................. 79
Opening/closing (with SmartKey) .... 80
Index15

Important safety information ........... 75
Opening/closing (all) ....................... 76
Opening/closing (front) ................... 76
Overview .......................................... 75
Problem (malfunction) .....................78
Resetting .........................................77
Reversing feature .............................75
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 217
SmartKey
Changing the battery ....................... 69
Changing the programming .............67
Checking the battery .......................69
Display message ............................ 206
Door central locking/unlocking ....... 66
Important safety notes.................... 66
Loss ................................................. 70
Mechanical key ................................ 68
Opening/closing the roof................ 80
Overview .......................................... 66
Positions (ignition lock) ................. 118
Problem (malfunction) ..................... 70
Starting the engine ........................ 120
SMS
see also Digital Operator's Man-
ual .................................................. 217
Snow chains...................................... 270
Sockets
Center console .............................. 230
General notes ................................ 229
Sound
Switching on/off........................... 218
Special seat belt retractor.................. 54
Specialist workshop............................ 27
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 171
In the Instrument cluster ................. 32
Segments ...................................... 167
Selecting the display unit............... 176
Sport handling mode
Activating/deactivating
(Mercedes-AMG SLC 43) ................. 62
Warning lamp ................................. 212
Standing lamps
Display message ............................ 193
Switching on/off.............................. 98
Start/stop function
see ECO start/stop function
Starting (engine)................................ 119
Steering
Display message ............................ 205
Steering wheel
Adjusting (electrically) ..................... 90
Adjusting (manually) ........................ 90
Button overview ............................... 33
Buttons (on-board computer) ......... 168
Important safety notes .................... 89
Storing settings (memory func-
tion) ................................................. 95
Steering wheel paddle shifters........ 129
Stopwatch (RACETIMER)................... 180
Stowage areas................................... 225
Stowage compartments
Armrest (under) ............................. 225
Center console .............................. 226
Cup holders ................................... 227
Door ............................................... 226
Eyeglasses compartment ............... 226
Glove box ....................................... 225
Important safety information ......... 225
Rear wall ........................................ 226
Stowage net ................................... 226
Stowage net....................................... 226
Summer tires..................................... 269
Sun visor............................................ 228
Surround lighting (on-board com-
puter).................................................. 177
SVHC (Substances of Very High
Concern)............................................... 27
Switching air-recirculation mode
on/off................................................. 114
Switching on media mode
Via the device list .......................... 223
T
Tachometer........................................ 167
Tail lamps
Display message ............................ 193
see Lights
Tank content
Fuel gauge ....................................... 32
Index17

Restraint system warning lamp
The functions of the restraint system arechecked after the ignition is switched on andat regular intervals while the engine is running.Therefore, malfunctions can be detected ingood time.
Theurestraint system warning lamp onthe instrument cluster lights up when the igni-tion is switched on. It goes out no later than afew seconds after the vehicle is started. Thecomponents of the restraint system are inoperational readiness.
A malfunction has occurred if theurestraint system warning lamp:
Rdoes not light up after the ignition isswitched on
Rdoes not go out after a few seconds with theengine running
Rlights up again while the engine is running
GWARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This can affect
for example the Emergency Tensioning
Device or the air bag. This poses an
increased risk of injury or even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop
as soon as possible.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lampCand PASSENGER AIR BAG OFF indicatorlampDare part of the Occupant Classifica-tion System (OCS).
The indicator lamps display the status of thefront-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60seconds, subsequently both indicator lampsare off (PASSENGER AIR BAG ON and OFF):the front-passenger front air bag is able todeploy in the event of an accident.
RPASSENGER AIR BAG OFF lights up: thefront-passenger front air bag is deactivated.It will then not be deployed in the event ofan accident.
If the PASSENGER AIR BAG ON indicator lampis off, only the PASSENGER AIR BAG OFF indi-cator lamp shows the status of the front-passenger front air bag. The PASSENGER AIRBAG OFF indicator lamp may be lit continu-ously or be off.
Depending on the person in the front-passenger seat, the front-passenger front airbag must either be deactivated or enabled;see the following points. You must make sureof this both before and during a journey.
RChildren in a child restraint system:whether the front-passenger front air bag isenabled or deactivated depends on theinstalled child restraint system, and the ageand size of the child. Therefore, be sure toobserve the notes on the "Occupant Classifi-cation System (OCS)" (Ypage 46) and on"Children in the vehicle" (Ypage 53).There you will also find instructions on rear-ward and forward-facing child restraint sys-tems on the front-passenger seat.
RAll other persons:depending on the classi-fication of the person in the front-passengerseat, the front-passenger front air bag isenabled or deactivated (Ypage 46). Besure to observe the notes on "Seatbelts“ (Ypage 39) and "Air bags"(Ypage 43). There you can also find infor-mation on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means ofrestricting the movement of vehicle occupantsin the event of an accident or the vehicle roll-ing over. This reduces the risk of vehicle occu-pants coming into contact with parts of thevehicle interior or being ejected from the vehi-cle. Furthermore, the seat belt helps to keep
Occupant safety39
Safety
Z

passenger front air bag both before and duringthe journey.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag
is disabled. It will not be deployed in the
event of an accident and cannot perform its
intended protective function. A person in the
front-passenger seat could then, for exam-
ple, come into contact with the vehicle's
interior, especially if the person is sitting too
close to the dashboard. This poses an
increased risk of injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
Rthe classification of the person in the
front-passenger seat is correct and the
front-passenger front air bag is enabled or
disabled in accordance with the person in
the front-passenger seat
Rthe front-passenger seat has been moved
back as far back as possible.
Rthe person is seated correctly.
Make sure, both before and during the jour-
ney, that the status of the front-passenger
front air bag is correct.
GWARNING
If you secure a child in a rearward-facing
child restraint system on the front-
passenger seat and the PASSENGER AIR
BAG OFF indicator lamp is off, the front-
passenger front air bag can deploy in the
event of an accident. The child could be
struck by the air bag. This poses an
increased risk of injury or even fatal injury.
Make sure that the front-passenger front air
bag has been deactivated. The PASSENGER
AIR BAG OFF indicator lamp must be lit.
NEVER use a rearward-facing child restraint
on a seat protected by an ACTIVE FRONT
AIRBAG in front of it; DEATH or SERIOUS
INJURY to the child can occur.
If the PASSENGER AIR BAG OFF indicator lampstays off, do not install a rearward-facing child
restraint system on the front-passenger seat.You can find more information on OCS under"Problems with the Occupant ClassificationSystem" (Ypage 49).
GWARNING
If you secure a child in a forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat
too close to the dashboard, in the event of
an accident, the child could:
Rcome into contact with the vehicle's inte-
rior if the PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
Rbe struck by the air bag if the
PASSENGER AIR BAG OFF indicator lamp
is off
This poses an increased risk of injury or
even fatal injury.
Move the front-passenger seat as far back
as possible. Always make sure that the
shoulder belt strap is correctly routed from
the vehicle belt guide to the shoulder belt
guide on the child restraint system. The
shoulder belt strap must be routed forwards
and downwards from the vehicle belt guide.
Always observe the child restraint system
manufacturer's installation instructions.
If OCS determines that:
RThe front-passenger seat is unoccupied, thePASSENGER AIR BAG OFF indicator lamplights up after the self-test and remains lit.This indicates that the front-passenger frontair bag is deactivated.
RThe front-passenger seat is occupied by achild of up to twelve months old, in a stand-ard child restraint system, the PASSENGERAIR BAG OFF indicator lamp lights up afterthe self-test and remains lit. This indicatesthat the front-passenger front air bag isdeactivated.
But even in the case of a twelve-month-oldchild, in a standard child restraint system,the PASSENGER AIR BAG OFF indicatorlamp can go out after the self-test. This indi-cates that the front-passenger front air bagis activated. The result of the classificationis dependent on, among other factors, thechild restraint system and the child's stat-
Occupant safety47
Safety
Z

ure. Make sure that the conditions for a cor-rect classification are met. If thePASSENGER AIR BAG OFF indicator lampremains off, do not install a child restraintsystem on the front-passenger seat.
RThe front-passenger seat is occupied by aperson of smaller stature (e.g. a teenager orsmall adult), the PASSENGER AIR BAG OFFindicator lamp either lights up and remainslit after the self-test depending on the resultof the classification or, alternatively, goesout.
-If the PASSENGER AIR BAG OFF indicatorlamp is off, move the front-passenger seatas far back as possible.
-If the PASSENGER AIR BAG OFF indicatorlamp is lit, a person of smaller statureshould not use the front-passenger seat.
RThe front-passenger seat is occupied by anadult or a person of corresponding stature,the PASSENGER AIR BAG OFF indicatorlamp goes out after the self-test. This indi-cates that the front-passenger front air bagis activated.
If children are traveling in the vehicle, be sureto observe the notes on "Children in the vehi-cle" (Ypage 53).
When the Occupant Classification System(OCS) is malfunctioning, the redurestraintsystem warning lamp on the instrument clus-ter and the PASSENGER AIR BAG OFF indica-tor lamp light up simultaneously. The front-passenger front air bag is deactivated in thiscase and does not deploy during an accident.Have the Occupant Classification System(OCS) checked and repaired immediately at aqualified specialist workshop. Mercedes-Benzrecommends that you use an authorizedMercedes-Benz Center for this purpose.
If the front-passenger seat, the seat cover orthe seat cushion are damaged, have the nec-essary repair work carried out at a qualifiedspecialist workshop. Mercedes-Benz recom-mends that you use an authorized Mercedes-Benz Center for this purpose.
For safety reasons, Mercedes-Benz recom-mends that you only use seat accessories thathave been approved by Mercedes-Benz.
Deployment of the driver's air bag does notmean that the front-passenger front air bagdeploys as well. The Occupant ClassificationSystem (OCS) categorizes the occupant on thefront-passenger seat. Depending on that
result, the front-passenger front air bag iseither enabled or deactivated.
Self-check of the Occupant Classifica-
tion System (OCS)
GDANGER
If the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not both light up during the self-test, the
system is malfunctioning. The front-
passenger front air bag might be triggered
unintentionally or might not be triggered at
all in the event of an accident with high
deceleration. This poses an increased risk of
injury or even fatal injury.
In this case the front-passenger seat may
not be used. Do not install a child restraint
system on the front-passenger seat. Have
the Occupant Classification System (OCS)
checked and repaired immediately at a
qualified specialist workshop.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp remains lit after the self-test, the front-
passenger front air bag is deactivated. It will
not be deployed in the event of an accident.
In this case, the front-passenger front air
bag cannot perform its intended protective
function, e.g. when a person is seated in the
front-passenger seat.
That person could, for example, come into
contact with the vehicle's interior, especially
if the person is sitting too close to the dash-
board. This poses an increased risk of injury
or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
Rthe classification of the person in the
front-passenger seat is correct and the
front-passenger front air bag is enabled or
48Occupant safety
Safety

deactivated in accordance with the per-
son in the front-passenger seat
Rthe person is seated properly with a cor-
rectly fastened seatbelt
Rthe front-passenger seat has been moved
as far back as possible
If the PASSENGER AIR BAG OFF indicator
lamp remains lit when it should not, the
front-passenger seat must not be used. Do
not install a child restraint system on the
front-passenger seat. Have the Occupant
Classification System (OCS) checked and
repaired immediately at a qualified specialist
workshop.
GWARNING
Objects between the seat surface and the
child restraint system could affect OCS
operation. This could result in the front-
passenger air bag not functioning as inten-
ded during an accident. This poses an
increased risk of injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. The
entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must,
as far as possible, be resting on the back-
rest of the front-passenger seat. Always
comply with the child restraint system man-
ufacturer's installation instructions.
After the self-test, the PASSENGER AIR BAGOFF or the PASSENGER AIR BAG ON indicatorlamp displays the status of the front-passenger front airbag (Ypage 46). If thefront-passenger front airbag is enabled, thePASSENGER AIR BAG ON indicator lamp lightsup for 60 seconds and then goes out.
If the PASSENGER AIR BAG ON indicator lampis off, only the PASSENGER AIR BAG OFF indi-cator lamp shows the status of the front-passenger front airbag. The PASSENGER AIRBAG OFF indicator lamp may be lit continu-ously or be off.
For more information about the OCS, see"Problems with the Occupant ClassificationSystem" (Ypage 49).
Problems with the Occupant Classification System (OCS)
Be sure to observe the notes on "System self-test" (Ypage 48).
Occupant safety49
Safety
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ProblemPossible causes/consequences andPPSolutions
The PASSENGER AIRBAG OFF indicator lamplights up and remainslit, even though thefront-passenger seat isoccupied by an adult ora person of a staturecorresponding to that ofan adult.
The classification of the person on the front-passenger seat is incor-rect.
XMake sure the conditions for a correct classification of the per-son on the front-passenger seat are met (Ypage 46).
XIf the PASSENGER AIR BAG OFF indicator lamp remains lit, thefront-passenger seat may not be used.
XHave OCS checked as soon as possible at an authorizedMercedes-Benz Center.
The PASSENGER AIRBAG OFF indicator lampdoes not light upand/or does not stayon.
The front-passengerseat is:
Runoccupied
Roccupied by theweight of a child upto twelve months oldin a child restraintsystem
OCS is malfunctioning.
XMake sure there is nothing between the seat cushion and thechild seat.
XMake sure that the entire base of the child restraint system restson the seat cushion of the front-passenger seat. The backrest ofthe forward-facing child restraint system must lie as flat as possi-ble against the backrest of the front passenger seat. If necessary,adjust the position of the front-passenger seat.
XWhen installing the child restraint system, make sure that theseat belt is tight. Do not pull the seat belt tight using the front-passenger seat adjustment. This could result in the seat belt andthe child restraint system being pulled too tightly.
XCheck for correct installation of the child restraint system.
Make sure that the head restraint does not apply a load to thechild restraint system. If necessary, adjust the head restraintaccordingly.
XMake sure that no objects are applying additional weight onto theseat.
XIf the PASSENGER AIR BAG OFF indicator lamp remains offand/or the PASSENGER AIR BAG ON indicator lamp lights up, donot install a child restraint system on the front-passenger seat.
XHave OCS checked as soon as possible at an authorizedMercedes-Benz Center.
Deployment of Emergency Tension-
ing Devices and air bags
Important safety notes
GWARNING
The air bag parts are hot after an air bag has
been deployed. There is a risk of injury.
Do not touch the air bag parts. Have a
deployed air bag replaced at a qualified spe-
cialist workshop as soon as possible.
GWARNING
A deployed air bag no longer offers any pro-
tection and cannot provide the intended pro-
tection in an accident. There is an increased
risk of injury.
Have the vehicle towed to a qualified spe-
cialist workshop in order to have a deployed
air bag replaced.
For your own safety and that of your frontpassenger, it is important that you havedeployed air bags replaced and defective airbags repaired. This will help to make sure theair bags continue to perform their protective
50Occupant safety
Safety