start stop button MERCEDES-BENZ SL CLASS 2019 Owners Manual

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 ............................ 217
see Lights
Automatic car wash (care)...............271
Automatic engine start (ECO
start/stop function).......................... 130
Automatic engine switch-off (ECO
start/stop function).......................... 129
Automatic headlamp mode.............. 109
Automatic transmission
Accelerator pedal position ............. 138
Changing gear ............................... 138
Display message ............................ 228
Drive program ................................ 138
Drive program display.................... 135
Driving tips .................................... 138
DYNAMIC SELECT button (all
vehicles except Mercedes-AMG
vehicles) ........................................ 132
DYNAMIC SELECT controller
(Mercedes-AMG vehicles) .............. 133
Emergency running mode.............. 144
Engaging drive position .................. 137
Engaging neutral ............................ 136
Engaging park position automati-
cally ............................................... 136
Engaging reverse gear ................... 136
Engaging the park position ............ 136
Gearshift recommendation ............ 143
Kickdown ....................................... 138
Manual shifting .............................. 141
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 202
Overview ........................................ 134
Problem (malfunction) ................... 144
Pulling away ................................... 128
Selector lever ................................ 134
Starting the engine ........................ 128
Steering wheel paddle shifters ...... 141
Transmission position display ........ 135
Transmission positions .................. 137
Automatic transmission emer-
gency mode....................................... 144
B
Back button....................................... 244
BAS (Brake Assist System)................. 61
Battery (SmartKey)
Checking .......................................... 77
Important safety notes .................... 76
Replacing ......................................... 77
Battery (vehicle)
Charging ........................................ 284
Display message ............................ 219
Important safety notes .................. 282
Jump starting ................................. 285
Overview ........................................ 282
Replacing ....................................... 285
Belt
see Seat belts
Belt warning......................................... 44
Blind Spot Assist
see Active Blind Spot Assist
Bluetooth®
Searching for a mobile phone ........ 247
see also Digital Operator's Man-
ual .................................................. 243
Telephony ...................................... 246
Brake Assist System
see BAS (Brake Assist System)
Brake Assist with cross-traffic
function
Function/notes................................ 61
Important safety notes .................... 61
Brake fluid
Display message ............................ 211
Notes ............................................. 324
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 65
Display message ............................ 217
Brakes
ABS .................................................. 60
Adaptive Brake Assist ...................... 64
BAS .................................................. 61
6Index

see also Digital Operator's Man-
ual .................................................. 243
DYNAMIC SELECT button (all
vehicles except Mercedes-AMG
vehicles)............................................. 132
DYNAMIC SELECT controller
(Mercedes-AMG vehicles)................. 133
E
EASY-ENTRY feature
Activating/deactivating ................. 201
Function/notes ............................. 103
EASY-EXIT feature
Crash-responsive ........................... 104
Function/notes ............................. 103
Switching on/off ........................... 201
EBD (electronic brake force distri-
bution)
Display message ............................208
Function/notes ................................ 69
ECO display
Function/notes .............................150
On-board computer ....................... 193
ECO start/stop function
Automatic engine start .................. 130
Automatic engine switch-off .......... 129
Deactivating/activating ................. 130
General information ....................... 129
Important safety notes .................. 129
Introduction ................................... 129
Electronic Stability Program
see ESP®(Electronic Stability Program)
Emergency
Automatic measures after an
accident ...........................................56
Emergency release
Driver's door .................................... 81
Trunk ...............................................86
Vehicle .............................................81
Emergency Tensioning Devices
Activation .........................................53
Emissions control
Service and warranty information .... 25
Engine
Check Engine warning lamp ...........239
Display message ............................ 218
ECO start/stop function ................ 129
Engine number ............................... 321
Irregular running ............................ 131
Jump-starting ................................. 285
Overview ........................................ 269
Starting problems .......................... 131
Starting the engine with the
SmartKey ....................................... 128
Starting with KEYLESS-GO ............. 128
Switching off .................................. 147
Tow-starting (vehicle) ..................... 290
Engine electronics
Notes ............................................. 319
Problem (malfunction) ................... 131
Engine oil
Adding ...........................................266
Additives ........................................ 324
Checking the oil level ..................... 266
Checking the oil level using the
dipstick .......................................... 266
Display message ............................ 220
Filling capacity ............................... 324
General notes ................................ 323
Notes about oil grades ................... 323
Notes on oil level/consumption .... 266
Temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 202
Entering an address
see also Digital Operator's Man-
ual ..................................................243
ESP®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 203
Characteristics ................................. 66
Deactivating/activating (button
in Mercedes-AMG vehicles) ............. 68
Deactivating/activating (except
Mercedes‑AMG vehicles) ................. 67
Display message ............................ 206
Function/notes ................................ 65
General notes .................................. 65
Important safety information ........... 66
Warning lamp ................................. 236
ETS/4ETS (Electronic Traction
System)................................................ 66
Exhaust check................................... 150
Exhaust pipe (cleaning instruc-
tions)..................................................275
10Index

Head restraints
Adjusting ....................................... 100
see NECK-PRO head restraints
Headlamps
see Automatic headlamp mode
Heating
see Climate control
High beam flasher............................. 110
High-beam headlamps
Display message ............................ 217
Switching on/off ........................... 110
Hill start assist.................................. 129
HOLD function
Activating ....................................... 165
Activation conditions .....................165
Deactivating ................................... 165
Display message ............................ 222
General notes ................................ 165
Home address
see also Digital Operator's Man-
ual ..................................................243
Hood
Closing ...........................................266
Display message ............................ 230
Important safety notes .................. 265
Opening ......................................... 265
Horn...................................................... 32
Hydroplaning..................................... 153
I
Ignition lock
see Key positions
Immobilizer.......................................... 72
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 33
Instrument cluster lighting.............. 190
Interior lighting
Automatic control .......................... 113
Delayed switch-off (on-board
computer) ...................................... 201
Reading lamp ................................. 112
Setting the brightness of the
ambient lighting (on-board com-
puter) ............................................. 200
iPod®
see also Digital Operator's Man-
ual ..................................................243
J
Jack
Storage location ............................ 278
Using ............................................. 314
Jump starting (engine)......................285
K
Key positions
KEYLESS-GO .................................. 126
SmartKey ....................................... 126
KEYLESS-GO
Activating ......................................... 74
Convenience closing feature ............ 89
Deactivation ..................................... 74
Display message ............................ 232
Locking ............................................ 74
Removing the Start/Stop button ... 127
Start/Stop button .......................... 126
Starting the engine ........................ 128
Unlocking ......................................... 74
Kickdown
Driving tips ....................................138
Manual gearshifting ....................... 143
Knee bag.............................................. 46
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
see Active Lane Keeping Assist
Lap time (RACETIMER)......................203
License plate lamp (display mes-
sage)................................................... 217
Light function, active
Display message ............................ 217
Light sensor (display message)....... 217
Lights
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 201
12Index

Door central locking/unlocking ....... 74
Important safety notes.................... 74
Loss ................................................. 78
Mechanical key ................................ 76
Opening/closing the roof................ 92
Overview .......................................... 74
Positions (ignition lock) ................. 126
Problem (malfunction) ..................... 78
Starting the engine ........................ 128
SMS
see also Digital Operator's Man-
ual .................................................. 243
Snow chains...................................... 295
Sockets
Front-passenger footwell ............... 255
General notes ................................ 254
Trunk ............................................. 255
Sound
Switching on/off........................... 244
Special seat belt retractor.................. 57
Specialist workshop............................ 28
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 194
In the Instrument cluster ................. 33
Segments ...................................... 190
Selecting the display unit............... 199
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 68
Warning lamp ................................. 238
Standing lamps
Display message ............................ 217
Switching on/off........................... 110
Start/stop function
see ECO start/stop function
Starting (engine)................................ 127
STEER CONTROL.................................. 72
Steering
Display message ............................ 230
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (electrically) ................... 103
Button overview ............................... 34
Buttons (on-board computer) ......... 191
Important safety notes .................. 103
Storing settings (memory func-
tion) ............................................... 107
Steering wheel paddle shifters........ 141
Stopwatch (RACETIMER)................... 203
Stowage areas................................... 249
Stowage compartments
Armrest (under) ............................. 249
Center console .............................. 250
Center console (rear) ..................... 250
Cup holders ................................... 252
Eyeglasses compartment ............... 250
Glove box ....................................... 249
Important safety information ......... 249
Rear ............................................... 251
Stowage net ................................... 251
Stowage net....................................... 251
Stowage space
Umbrella holder............................. 250
Stowage well beneath the trunk
floor.................................................... 252
Summer tires..................................... 295
Sun visor............................................ 253
Surround lighting (on-board com-
puter).................................................. 200
Suspension settings
Active Body Control (ABC)
(except Mercedes-AMG vehicles) .. 169
Active Body Control (ABC)
(Mercedes-AMG vehicles) .............. 171
Suspension tuning
SETUP (on-board computer,
Mercedes-AMG vehicles) ............... 203
SVHC (Substances of Very High
Concern)............................................... 28
Switching air-recirculation mode
on/off................................................. 122
Switching on media mode
Via the device list .......................... 248
T
Tachometer........................................ 190
Tail lamps
Display message ............................ 217
see Lights
18Index

Panic alarm
XTo activate:press3buttonCfor atleast one second.A visual and audible alarm is triggered if thealarm system is armed.
XTo deactivate:press3buttonCagain.
or
XInsert the SmartKey into the ignition lock.
or
XPress the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk ofvehicle occupants coming into contact withparts of the vehicle's interior in the event of anaccident. The restraint system can also reducethe forces to which vehicle occupants are sub-jected during an accident.
The restraint system includes the followingcomponents:
Rseat belt system
Rair bags
The components of the restraint system workin conjunction with each other. They can onlydeploy their protective function if, at all times,all vehicle occupants:
Rhave fastened their seat belts correctly(Ypage 43)
Rhave the seat and head restraint adjustedproperly (Ypage 97)
As the driver, you also have to make sure thatthe steering wheel is adjusted correctly.
Observe the information relating to the correctdriver's seat position (Ypage 97).
You also have to make sure that an air bag caninflate properly if deployed (Ypage 45).
An air bag supplements a correctly worn seatbelt. As an additional safety device, the air bagincreases the level of protection for vehicleoccupants in the event of an accident. Forexample, if, in the event of an accident, theprotection offered by the seat belt is sufficient,the air bags are not deployed. When an acci-dent occurs, only the air bags that increaseprotection in that particular accident situationare deployed. However, seat belts and air bagsgenerally do not protect against objects pene-trating the vehicle from the outside.
Information on restraint system operation canbe found under "Triggering of the EmergencyTensioning Devices and air bags"(Ypage 53).
See "Children in the vehicle" for informationon children traveling with you in the vehicle aswell as on child restraint systems(Ypage 57).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in
an accident or trigger unexpectedly, for
example. This poses an increased risk of
injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of therestraint system to accommodate a personwith disabilities, contact an authorizedMercedes-Benz Center for details. USA only:for further information contact our CustomerAssistance Center at 1-800 FOR-MERCEDES(1‑800‑367‑6372).
Mercedes-Benz recommends that you only usedriving aids which have been approved specifi-cally for your vehicle by Mercedes-Benz.
40Occupant safety
Safety

Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS) cat-egorizes the person in the front-passengerseat. Depending on that result, the front-passenger front air bag and front-passengerknee bag are either enabled or deactivated.
The system does not deactivate:
Rthe side impact air bag
Rthe headbag
Rthe Emergency Tensioning Devices
Requirements
To be classified correctly, the front passengermust sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their backagainst the seat backrest
Rwith their feet resting on the floor, if possi-ble
If the front passenger does not observe theseconditions, OCS may produce a false classifi-cation, e.g. because the front passenger:
Rtransfers their weight by supporting them-selves on a vehicle armrest
Rsits in such a way that their weight is raisedfrom the seat cushion
If you install a child restraint system on thefront-passenger seat, be sure to observe thecorrect positioning of the child restraint sys-tem. Never place objects under or behind thechild restraint system, e.g. a cushion. Fullyretract the seat cushion length. The entirebase of the child restraint system must alwaysrest on the seat cushion of the front-passenger seat. The backrest of the forward-facing child restraint system must lie as flat aspossible against the backrest of the front-passenger seat.
The child restraint system must not touch theroof or be subjected to a load by the headrestraint. Adjust the angle of the seat backrestand the head restraint position accordingly.
Only then can OCS be guaranteed to functioncorrectly. Always observe the child restraintsystem manufacturer's installation and operat-ing instructions.
Occupant Classification System opera-
tion (OCS)
CPASSENGER AIR BAG ON indicator lamp
DPASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether thefront-passenger front air bag is deactivated orenabled.
XPress the Start/Stop button once or twice,or turn the SmartKey to positionGorHinthe ignition lock.The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF andPASSENGER AIR BAG ON indicator lamps mustlight up simultaneously for approximately sixseconds.
The indicator lamps display the status of thefront-passenger front air bag.
RPASSENGER AIR BAG ON lights up for60 seconds, subsequently both indicatorlamps are off (PASSENGER AIR BAG ON andOFF): the front-passenger front air bag isable to deploy 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.
If the status of the front-passenger front airbag changes while the vehicle is in motion, anair bag display message appears in the instru-ment cluster (Ypage 215). When the front-passenger seat is occupied, always pay atten-tion to the PASSENGER AIR BAG OFF indicatorlamp. Be aware of the status of the front-
48Occupant safety
Safety

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
Ra stowage compartment in the rearpassenger compartment
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.
This is done either by text message or dataconnection. The emergency call systemsends the message or data provided that:
Ryou have subscribed to Mercedes meconnect
Rthe Mercedes me connect service hasbeen activated properly
Rthe necessary mobile phone network isavailable
Protection against theft73
Safety
Z

RUse the residual heat function if you want toheat or ventilate the vehicle interior whenthe ignition is switched off. The residualheat function can only be activated or deac-tivated with the ignition switched off.
RVehicles with COMAND:if you change thesettings of the climate control system, theclimate status display appears for three sec-onds at the bottom of the screen in theCOMAND display. You will see the currentsettings of the various climate control func-tions.
ECO start/stop function
During automatic engine switch-off, the cli-mate control system only operates at areduced capacity. If you require full climatecontrol capacity, the ECO start/stop functioncan be deactivated by pressing the ECO but-ton (Ypage 130).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, theair supply and air circulation are also switchedoff. The windows could fog up. Therefore,switch off climate control only briefly
iActivate climate control primarily using theXbutton (Ypage 119).
Activating/deactivating
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 126).
XTo activate:press theXbutton.The indicator lamp in theXbutton lightsup. Airflow and air distribution are set toautomatic mode.
or
XPress thexbutton.The indicator lamp in thexbutton goesout. The previously selected settings arerestored.
XTo deactivate:press thexbutton.The indicator lamp in thexbutton lightsup.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-midification" function, the air inside the vehiclewill not be cooled. The air inside the vehiclewill also not be dehumidified. The windows canfog up more quickly. Therefore, deactivate thecooling with air-dehumidification function onlybriefly.
The "Cooling with air dehumidification" func-tion is only available when the engine is run-ning. The air inside the vehicle is cooled anddehumidified according to the temperatureselected.
Condensation may drip from the underside ofthe vehicle when it is in cooling mode. This isnormal and not a sign that there is a malfunc-tion.
Activating/deactivating
XTo activate:press theZbutton.The indicator lamp in theZbutton lightsup.
XTo deactivate:press theZbutton.The indicator lamp in theZorVbut-ton goes out. The "Cooling with air dehumid-ification" function has a delayed switch-offfeature.
The indicator lamp in theZbutton goesout. The "Cooling with air dehumidification"function has a delayed switch-off feature.
118Operating the climate control systems
Climate control

GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could
affect, for example, the power steering and
the brake boosting effect. You will require
considerably more effort to steer and brake.
There is a risk of an accident.
Do not switch off the ignition while driving.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake
can:
Roverheat and cause a fire
Rlose its hold function.
There is a risk of fire and an accident.
Release the parking brake fully before driv-
ing off.
!Do not warm up the engine while station-ary. Pull away immediately. Avoid highengine speeds and full throttle until theengine has reached its operating tempera-ture.
In vehicles with automatic transmission,engage positions P and R only when thevehicle is stationary.
Where possible, avoid spinning the drivewheels when pulling away on slippery roads.You could otherwise damage the drive train.
!Mercedes-AMG vehicles:at low engineoil temperatures below 68 ‡ (+20 †), themaximum engine speed is restricted inorder to protect the engine. To protect theengine and maintain smooth engine opera-tion, avoid driving at full throttle when theengine is cold.
Key positions
SmartKey
ZTo remove the SmartKey
GPower supply for some consumers, suchas the windshield wipers
HIgnition (power supply for all consumers)and drive position
ITo start the engine
iThe SmartKey can be turned in the ignitionlock even if it is not the correct SmartKeyfor the vehicle. The ignition is not switchedon. The engine cannot be started.
KEYLESS-GO
General notes
Vehicles with KEYLESS-GO are equipped witha SmartKey featuring an integrated KEYLESS-GO start function and a detachable Start/Stopbutton.
The Start/Stop button must be inserted in theignition lock and the SmartKey must be in thevehicle.
When you insert the Start/Stop button intothe ignition lock, the system needs approx-imately two seconds recognition time. You canthen use the Start/Stop button.
Pressing the Start/Stop button several timesin succession corresponds to the different keypositions in the ignition lock. This is only thecase if you are not depressing the brake pedal.
If you depress the brake pedal and press theStart/Stop button, the engine starts immedi-ately.
A check which periodically establishes a radioconnection between the vehicle and theSmartKey determines whether a valid Smart-
126Driving
Driving and parking

Key is in the vehicle. This occurs, for example,when starting the engine.
To start the vehicle without actively using theSmartKey:
Rthe Start/Stop button must be inserted inthe ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with theSmartKey or KEYLESS-GO (Ypage 74).
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phoneor another SmartKey.
Rwith metallic objects, e.g. coins or metalfoil.
Rinside metallic objects, e.g. a metal case.
This can impair the functionality of the KEY-LESS-GO key.
If you lock the vehicle with the SmartKey'sremote control or with KEYLESS-GO, after ashort time:
Ryou will not be able to switch on the ignitionwith the Start/Stop button.
Ryou will not be able to start the engine withthe Start/Stop button until the vehicle isunlocked again.
The engine can be switched off while the vehi-cle is in motion by pressing and holding theStart/Stop button for three seconds. Thisfunction operates independently of the ECOstart/stop automatic engine switch-off func-tion.
Key positions with KEYLESS-GO
CStart/Stop button
DIgnition lock
As soon as the ignition is switched on, all theindicator lamps in the instrument cluster lightup. Further information on situations where anindicator lamp either fails to go out after start-
ing the engine or lights up while driving(Ypage 235).
If Start/Stop buttonChas not yet beenpressed, this corresponds to the key beingremoved from the ignition.
XTo switch on the power supply:pressStart/Stop buttonConce.The power supply is switched on. You cannow activate the windshield wipers, forexample.
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop buttonCtwicewhen in this position
XTo switch on the ignition:press Start/Stop buttonCtwice.The ignition is switched on.
If you press Start/Stop buttonConcewhen in this position, the ignition isswitched off again.
Removing the Start/Stop button
You can remove the Start/Stop button fromthe ignition lock and start the vehicle as nor-mal using the SmartKey.
XRemove Start/Stop buttonCfrom ignitionlockD.
You do not have to remove the Start/Stop but-ton from the ignition lock when you leave thevehicle. You should, however, always take theSmartKey with you when leaving the vehicle.As long as the SmartKey is in the vehicle:
Rthe vehicle can be started using the Start/Stop button
Rthe electrically powered equipment can beoperated
Starting the engine
Important safety notes
GWARNING
If children are left unsupervised in the vehi-
cle, they could:
Roperate the vehicle's equipment
Driving127
Driving and parking
Z