key battery MERCEDES-BENZ SLC 2019 Owners Manual

Ambient lighting
Setting the brightness (on-board
computer) ...................................... 177
Setting the color (on-board com-
puter) .............................................177
AMG menu (on-board computer)..... 179
AMG sports suspension
(Mercedes-AMG SLC 43)
Function/notes .............................152
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-skid chains
see Snow chains
Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Ashtray............................................... 229
Assistance display (on-board
computer).......................................... 175
Assistance menu (on-board com-
puter)..................................................174
ASSYST PLUS
Displaying a service message ........245
Hiding a service message .............. 245
Resetting the service interval dis-
play ................................................ 245
Service message ............................ 244
Special service requirements ......... 245
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 64
Function ...........................................64
Switching off the alarm .................... 64
ATTENTION ASSIST
Activating/deactivating ................. 175
Display message ............................ 197
Function/notes............................. 162
Audio menu (on-board computer).... 173
Audio system
see Digital Operator's Manual
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 193
see Lights
Automatic car wash (care)............... 246
Automatic engine start (ECO
start/stop function).......................... 122
Automatic engine switch-off (ECO
start/stop function).......................... 121
Automatic headlamp mode................ 97
Automatic transmission
Accelerator pedal position ............. 128
Changing gear ............................... 128
Display message ............................ 203
Drive program ................................ 128
Drive program display .................... 125
Driving tips .................................... 128
DYNAMIC SELECT button .............. 124
Emergency running mode.............. 132
Engaging drive position .................. 127
Engaging neutral ............................ 126
Engaging park position automati-
cally ............................................... 126
Engaging reverse gear ................... 126
Engaging the park position ............ 126
Gearshift recommendation ............ 131
Kickdown ....................................... 128
Manual shifting .............................. 129
Oil temperature (on-board com-
puter, Mercedes-AMG SLC 43) ...... 179
Overview ........................................ 125
Problem (malfunction) ................... 132
Pulling away ................................... 120
Selector lever ................................ 125
Starting the engine ........................ 120
Steering wheel paddle shifters ...... 129
Transmission position display ........ 125
Transmission positions .................. 127
Automatic transmission emer-
gency mode....................................... 132
B
Back button....................................... 218
BAS (Brake Assist System)................. 57
Battery (SmartKey)
Checking .......................................... 69
Important safety notes .................... 68
Replacing ......................................... 69
Battery (vehicle)
Charging ........................................ 259
Display message ............................ 195
Important safety notes .................. 257
Index5

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

Trunk partition
Display message ............................ 205
General notes .................................. 80
Opening/closing .............................. 81
Turn signals
Display message ............................ 193
Switching on/off .............................. 99
Two-way radio
Frequencies ................................... 296
Installation ..................................... 296
Transmission output (maximum) .... 296
Type identification plate
see Vehicle identification plate
U
Unlocking
Emergency unlocking ....................... 73
From inside the vehicle (central
unlocking button) ............................. 72
Upshift indicator
(on-board computer, Mercedes-
AMG SLC 43) ................................. 179
USB devices
Connecting to the Media Inter-
face ...............................................224
V
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 203
Electronics ..................................... 296
Equipment ....................................... 24
Individual settings .......................... 176
Limited Warranty .............................28
Loading .......................................... 279
Locking (in an emergency) ............... 73
Locking (SmartKey) .......................... 66
Lowering ........................................ 292
Maintenance .................................... 25
Parking for a long period ................ 137
Pulling away................................... 120
Raising ........................................... 290
REACH Regulation ........................... 27
Reporting problems ......................... 28
Securing from rolling away ............ 289
Tow-starting ................................... 263
Towing away .................................. 263
Transporting .................................. 265
Unlocking (in an emergency) ........... 73
Unlocking (SmartKey)...................... 66
Vehicle data ................................... 303
Vehicle battery
see Battery (vehicle)
Vehicle data....................................... 303
Vehicle dimensions........................... 303
Vehicle emergency locking................ 73
Vehicle identification number
see VIN
Vehicle identification plate.............. 297
Vehicle tool kit.................................. 252
Video
Operating the DVD ......................... 173
see also Digital Operator's Man-
ual .................................................. 217
VIN
Seat ............................................... 298
Type plate ...................................... 297
W
Warning and indicator lamps
ABS ................................................ 210
Active Brake Assist ........................ 215
Brake Assist ................................... 215
Brakes ........................................... 210
Check Engine ................................. 213
Coolant .......................................... 213
Distance warning ........................... 215
ESP®.............................................. 211
ESP®OFF ....................................... 212
Fuel tank ........................................ 213
General notes ................................ 208
Parking brake ................................ 212
PASSENGER AIR BAG ...................... 39
Reserve fuel................................... 213
Restraint system ............................ 212
Seat belt ........................................ 208
SPORT handling mode................... 212
Tire pressure monitor .................... 216
Warranty.............................................. 24
Washer fluid
Display message ............................ 206
20Index

tics. Have the brake system checked at a
qualified specialist workshop.
Observe information regarding indicator andwarning lamps (Ypage 210) as well as displaymessages (Ypage 185).
ADAPTIVE BRAKE
iObserve the "Important safety notes" sec-tion (Ypage 57).
ADAPTIVE BRAKE enhances braking safety andoffers increased braking comfort. In additionto the braking function, ADAPTIVE BRAKE alsohas the HOLD function (Ypage 151) and hillstart assist (Ypage 120).
Protection against theft
Immobilizer
XTo activate with the SmartKey:removethe SmartKey from the ignition lock.
XTo activate with KEYLESS-GO:switch theignition off and open the driver's door.
XTo deactivate:switch on the ignition.
The immobilizer prevents your vehicle frombeing started without the correct SmartKey.
When leaving the vehicle, always take theSmartKey with you and lock the vehicle. Theengine can be started by anyone with a validSmartKey that is left inside the vehicle.
iThe immobilizer is always deactivatedwhen 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 anauthorized Mercedes-Benz Center or call1-800-FOR-MERCedes (in the USA) or1-800-387-0100 (in Canada).
ATA (anti-theft alarm system)
XTo arm:lock the vehicle with the SmartKeyor KEYLESS-GO.Indicator lampCflashes. The alarm systemis armed after approximately 15 seconds.
XTo switch off:unlock the vehicle with theSmartKey or KEYLESS-GO.
A visual and audible alarm is triggered if thealarm system is armed and you open:
Ra door
Rthe vehicle with the mechanical key
Rthe trunk lid
Rthe hood
Rthe glove compartment
Rthe stowage space under the armrest
XTo stop the alarm with the SmartKey:press the6or7button on theSmartKey.The alarm is stopped.
or
XInsert the SmartKey into the ignition lock.The alarm is stopped.
XTo stop the alarm using KEYLESS-GO:grasp the outside door handle. The Smart-Key must be outside the vehicle.The alarm is stopped.
or
XPress the Start/Stop button on the dash-board. The SmartKey must be inside thevehicle.The alarm is stopped.
The alarm is not stopped, even if you close theopen door that triggered it, for example.
If the alarm stays on for more than30 seconds, the Mercedes me connectemergency call system automatically sendsa message to the Customer Center.
64Protection against theft
Safety

Locking/unlocking centrally
You can start, lock or unlock the vehicle usingKEYLESS-GO. To do this, you only need carrythe SmartKey with you. You can combine thefunctions of KEYLESS-GO with those of a con-ventional SmartKey. Unlock the vehicle byusing KEYLESS-GO, for instance, and lock itusing the7button on the SmartKey.
The driver's door and the door at which thehandle is used, must both be closed. TheSmartKey must be outside the vehicle. Whenlocking or unlocking with KEYLESS-GO, thedistance between the key and the correspond-ing door handle must not be greater than 3 ft(1 m).
A check which periodically establishes a radioconnection between the vehicle and theSmartKey determines whether a valid Smart-Key is in the vehicle. This occurs, for example:
Rwhen starting the engine
Rwhile driving
Rwhen the external door handles are touched
XTo unlock the vehicle:touch the inner sur-face of the door handle.
XTo lock the vehicle:touch sensor sur-faceCorD.
Make sure that you do not touch the innersurface of the door handle.
XConvenience closing feature:touchrecessed sensor surfaceDfor an extendedperiod.
Further information on the convenienceclosing feature (Ypage 77).
Deactivating and activating
If you do not intend to use a SmartKey for anextended period of time, you can deactivatethe KEYLESS-GO function of the key. The
SmartKey will then use very little power,thereby conserving battery power. For the pur-poses of activation/deactivation, the vehiclemust not be nearby.
XTo deactivate:press the7button onthe SmartKey twice in rapid succession.The battery check lamp (Ypage 69) of theSmartKey flashes twice briefly and lights uponce, then KEYLESS-GO is deactivated.
XTo activate:press any button on the Smart-Key.
or
XInsert the SmartKey into the ignition lock.KEYLESS-GO and all of its associated fea-tures are available again.
Changing the settings of the locking
system
You can change the settings of the lockingsystem. This means only the driver's door, thelockable stowage compartments in the vehicleinterior and the fuel filler flap are unlockedwhen the vehicle is unlocked. This is useful ifyou frequently travel alone.
XTo change the setting:press and holddown the6and7buttons simultane-ously for about six seconds until the batteryindicator lamp (Ypage 69) flashes twice.
If the setting of the locking system is changedwithin the signal range of the vehicle, pressingthe7or6button:
Rlocks or
Runlocks the vehicle
The SmartKey now functions as follows:
XTo unlock:press the6button once.
XTo unlock centrally:press the6buttontwice.
XTo lock centrally:press the7button.
The KEYLESS-GO function is changed as fol-lows:
XTo unlock the driver's door:touch theinner surface of the door handle on the driv-er's door.
XTo unlock centrally:touch the inner sur-face of the driver or front-passenger doorhandle.
XTo lock centrally:touch the outer sensorsurface on one of the door handles.
SmartKey67
Opening and closing
Z

XTo restore the factory settings:press andhold down the6and7buttonssimultaneously for approximately six sec-onds until the battery check lamp(Ypage 69) flashes twice.
Mechanical key
General notes
If the vehicle can no longer be locked orunlocked with the SmartKey or with KEYLESS-GO, use the mechanical key.
If you use the mechanical key to unlock andopen the driver's door or the trunk lid, theanti-theft alarm system will be triggered.Switch off the alarm (Ypage 64).
Removing the mechanical key
XPush release catchCin the direction of thearrow and at the same time removemechanical keyDfrom the SmartKey.
For further information about:
Runlocking the driver's door (Ypage 73)
Runlocking the trunk (Ypage 74)
Rlocking the vehicle (Ypage 73)
Inserting the mechanical key
XPush mechanical keyDcompletely into theSmartKey until it engages and releasecatchCis back in its basic position.
SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive sub-
stances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children.
If a battery is swallowed, seek medical
attention immediately.
HEnvironmental note
Batteries contain pollutants.
It is illegal to dispose of
them with the household
rubbish. They must be col-
lected separately and dis-
posed of in an environmen-
tally responsible recycling
system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used bat-
teries.
The SmartKey batteries contain perchloratematerial, which may require special handlingand regard for the environment. Nationalguidelines must be observed during disposal.In California, seewww.dtsc.ca.gov/HazardousWaste/Perchlorate/index.cfm.
Mercedes-Benz recommends that you havethe batteries replaced at a qualified specialistworkshop.
68SmartKey
Opening and closing

Checking the battery
XPress the7or6button.The battery is working properly if batterycheck lampClights up briefly.
The battery is discharged if battery checklampCdoes not light up briefly.
XChange the battery (Ypage 69).
If the SmartKey battery is checked within thesignal reception range of the vehicle, pressingthe7or6button:
Rlocks or
Runlocks the vehicle
iYou can get a battery at any qualified spe-cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
XTake the mechanical key out of the Smart-Key (Ypage 68).
XPress mechanical keyDinto the SmartKeyopening in the direction of the arrow untilbattery compartment coverCopens. Donot hold battery compartment coverCclosed while doing so.
XRemove battery compartment coverC.
XRepeatedly tap the SmartKey against yourpalm until battery

Problems with the SmartKey
ProblemPossible causes/consequences andPPSolutions
You can no longer lockor unlock the vehicleusing the SmartKey.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 69) and replace it if neces-sary (Ypage 69).
If this does not work:
XUnlock (Ypage 73) or lock (Ypage 73) the vehicle using themechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 73) or lock (Ypage 73) the vehicle using themechanical key.
The SmartKey is faulty.
XUnlock (Ypage 73) or lock (Ypage 73) the vehicle using themechanical key.
XHave the SmartKey checked at a qualified specialist workshop.
You can no longer lockor unlock the vehicleusing KEYLESS-GO.
KEYLESS-GO was deactivated.
XReactivate KEYLESS-GO (Ypage 66).
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 69) and replace it if neces-sary (Ypage 69).
If this does not work:
XUnlock (Ypage 73) or lock (Ypage 73) the vehicle using themechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 73) or lock (Ypage 73) the vehicle using themechanical key.
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of theSmartKey.
XHave the vehicle and SmartKey checked at a qualified specialistworkshop.
If the vehicle can also not be locked/unlocked using the remotecontrol function:
XUnlock (Ypage 73) or lock (Ypage 73) the vehicle using themechanical key.
XHave the vehicle and SmartKey checked at a qualified specialistworkshop.
70SmartKey
Opening and closing

ProblemPossible causes/consequences andPPSolutions
The engine cannot bestarted using the Smart-Key.
The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interiorlighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary(Ypage 259).
or
XJump-start the vehicle (Ypage 260).
or
XConsult a qualified specialist workshop.
The engine cannot bestarted using KEYLESS-GO. The SmartKey is inthe vehicle.
The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 69) and replace it if neces-sary (Ypage 69).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-Key.XHave the SmartKey deactivated at a qualified specialist work-shop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost themechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
The side windows can-not be opened or closedusing the convenienceopening/closing fea-ture.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 69) and replace it if neces-sary (Ypage 69).
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehi-
cle, they could:
Roperate the vehicle's equipment
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake
Rshift the automatic transmission out of
park position]
Rstart the engine
There is a risk of an accident and injury.
Doors71
Opening and closing
Z

Never leave children or animals unattended
in the vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
Unlocking and opening doors from
the inside
!The side windows will not open/close ifthe battery is discharged or if the side win-dows have iced up. It will then not be possi-ble to close the door. Do not attempt toforce the door closed. You could otherwisedamage the door or the side window.
You can open a door from inside the vehicleeven if it has been locked.
If the vehicle has previously been locked fromthe outside, opening a door from the insidewill trigger the anti-theft alarm system. Switchoff the alarm (Ypage 64).
XPull door handleD.If the door is locked, locking knobCpopsup. The door is unlocked and can beopened.
When a door is opened, the side window onthat side opens slightly. When the door isclosed, the side window closes again.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehiclefrom the inside. For example, you can unlock
the front-passenger door from the inside orlock the vehicle before you pull away.
XTo unlock:press buttonC.
XTo lock:press buttonD.If the front-passenger door is closed, thevehicle locks.
The central locking button does not lock orunlock the fuel filler flap or the stowage com-partment in the center console.
You cannot unlock the vehicle centrally fromthe inside if the vehicle has been locked withthe SmartKey or KEYLESS-GO.
You can open a door from inside the vehicleeven if it has been locked.
If a locked door is opened from the inside, theprevious unlock status of the vehicle will betaken into consideration if:
Rthe vehicle was locked using the lockingbutton for the central locking, or
Rif the vehicle was locked automatically
The vehicle will be fully unlocked if it had pre-viously been fully unlocked. If only the driver'sdoor had been previously unlocked, only thedoor which has been opened from the inside isunlocked.
72Doors
Opening and closing