check engine MERCEDES-BENZ S-Class COUPE 2017 C217 Owner's Manual

Switching off (ATA) .......................... 71
Switching the function on/off
(ATA) ................................................ 71
Alarm system
see ATA (Anti-Theft Alarm system)
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Armrest
Stowage compartment .................. 255
Ashtray ............................................... 259
Assistance display (on-board com-
puter) .................................................. 197
Assistance menu (on-board com-
puter) .................................................. 197
ASSYST PLUS
Displaying a service message ........ 279
Hiding a service message .............. 279
Resetting the service interval dis-
play ................................................ 279
Service message ............................ 278
Special service requirements ......... 279
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 71
Function ........................................... 71
Switching off the alarm .................... 71
ATTENTION ASSIST
Activating/deactivating ................. 199
Display message ............................ 219
Function/notes ............................. 175
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 215
see Lights
Automatic car wash (care) ............... 280
Automatic engine start (ECO start/
stop function) .................................... 125
Automatic engine switch-off (ECO
start/stop function) .......................... 125
Automatic headlamp mode .............. 104
Automatic transmission
Accelerator pedal position ............. 131
Automatic drive program ............... 132 Changing gear ............................... 131
DIRECT SELECT lever ..................... 128
Display message ............................ 227
Drive program display .................... 129
Driving tips .................................... 131
Emergency running mode .............. 135
Engaging drive positi
on .................. 129
Eng

aging neutral ............................ 129
Engaging park position automati-
cally ............................................... 128
Engaging reverse gear ................... 128
Engaging the park position ............ 128
Kickdown ....................................... 131
Manual drive program .................... 132
Manual drive program (Mercedes-
AMG vehicles) ................................ 133
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 202
Overview ........................................ 128
Problem (malfunction) ................... 135
Program selector button ................ 131
Pulling away ................................... 124
Starting the engine ........................ 123
Steering wheel paddle shifters ...... 132
Transmission position display ........ 129
Transmission positions .................. 130
Automatic transmission emer-
gency mode ....................................... 135
AUX (audio)
Notes/socket ................................ 252
B
Back button ....................................... 243
Backup lamp
Display message ............................ 215
BAS (Brake Assist System) ................. 62
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Function/notes ................................ 62
BAS PLUS with Cross-Traffic Assist
(Brake Assist PLUS with Cross-
Traffic Assist)
Important safety notes .................... 63
Battery (SmartKey)
Checking .......................................... 75
Important safety notes .................... 75
Replacing ......................................... 75
Index5

Coolant (engine)Checking the level ........................ .277
Display message ............................ 216
Filling capacity ............................... 334
Important safety notes .................. 333
Temperature gauge ........................ 187
Warning lamp ................................. 237
Coolbox .............................................. 260
Cooling
see Climate control
Copyright ............................................. 32
Cornering light function
Display message ............................ 215
Function/notes .............................1 06
Crosswind Assist ................................. 68
Crosswind Assist (vehicles with
MAGIC BODY CONTROL) ................... 156
Crosswind Assist (vehicles with-
out MAGIC BODY CONTROL) ...............68
Cruise control
Calling up the speed last stored .... 146
Cruise control lever ....................... 146
Deactivating ................................... 146
Display message ............................ 225
Driving system ............................... 145
Function/notes ............................. 145
General notes ................................ 145
Important safety notes .................. 145
Setting a speed .............................. 146
Storing and maintaining current
speed ............................................. 146
Cup holder
Center console .............................. 257
Important safety notes .................. 257
Rear compartment ......................... 257
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29
D
Data
see Technical data
Data carrier
Selecting ........................................ 194
Daytime running lamps
Display message ............................ 215
Function/notes ............................. 104 Switching on/off (on-board com-
puter) ............................................. 201
Declarations of conformity ................. 28
Diagnostics connection ...................... 29
Digital Operator's Manual
Help ................................................. 24
Introduction ..................................... 24
Digital speedometer ......................... 191
DIRECT SELECT lever
Automatic transmission ................. 128
Display
see Display messages
see Warning and indicator lamps
Display messages
ASSYST PLUS ................................ 278
Calling up (on-board computer) ..... 203
Driving systems ............................. 219
Engine ............................................ 216
General notes ................................ 203
Hiding (on-board computer) ........... 203
Introduction ................................... 203
Lights ............................................. 215
Safety systems .............................. 204
SmartKey ....................................... 230
Tires ............................................... 226
Vehicle ........................................... 227
Distance recorder
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 239
Distance warning function
Function/notes ................................ 65
DISTRONIC PLUS
Activating ....................................... 148
Activation conditions ..................... 148
Cruise control lever ....................... 148
Deactivating ................................... 152
Display message ............................ 223
Displays in the instrument cluster .. 151
Driving tips .................................... 152
Driving with DISTRONIC PLUS ....... 149
Function/notes ............................. 147
Important safety notes .................. 147
Setting a speed .............................. 150
Setting the specified minimum
distance ......................................... 151
Stopping ........................................ 150
8Index

EASY-ENTRY system............................ 95
EASY-EXIT feature
Crash-responsive .......................... .100
Function/notes ................................ 99
EBD (electronic brake force distri-
bution)
Display message ............................ 206
Function/notes ................................ 68
ECO display
Function/notes .............................1 41
On-board computer ....................... 190
ECO start/stop function
Automatic engine start .................. 125
Automatic engine switch-off .......... 125
Deactivating/activating ................. 126
General information ....................... 125
Important safety notes .................. 124
Introduction ................................... 124
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Electronic Traction System
see ETS/4ETS (Electronic Trac-
tion System)
Emergency
Automatic measures after an acci-
dent ................................................. 57
Emergency release
Driver's door ....................................7 9
Trunk ............................................... 84
Vehicle ............................................. 79
Emergency Tensioning Devices
Activation ......................................... 53
Emissions control
Service and warranty information ....2 6
Engine
Check Engine warning lamp .......... .237
Display message ............................ 216
ECO start/stop function ................ 124
Engine number ............................... 330
Irregular running ............................ 127
Jump-starting ................................. 295
Starting (important safety notes) ... 122
Starting problems .......................... 127
Starting the engine with the
SmartKey ....................................... 123
Starting via smartphone ................ 123
Starting with the Start/Stop but-
ton ................................................. 123 Switching off .................................. 138
Tow-starting
(vehi
cle) ..................... 300
Engine electronics
Problem (malfunction) ................... 127
Engine oil
Adding ...........................................2 76
Additives ........................................ 333
Checking the oil level ..................... 275
Checking the oil level using the
dipstick .......................................... 275
Checking the oil level using the
on-board computer ........................ 275
Display message ............................ 218
Filling capacity ............................... 333
General notes ................................ 332
Notes about oil grades ................... 332
Notes on oil level/consumption .... 275
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 02
Entering an address
see also Digital Operator's Man-
ual ..................................................2 42
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 202
Characteristics ................................. 67
Deactivating/activating ................. 197
Deactivating/activating (notes) ....... 67
Display message ............................ 204
Function/notes ................................ 66
General notes .................................. 66
Important safety information ........... 67
Warning lamp ................................. 234
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 66
Exhaust
see Exhaust pipe
Exhaust check ................................... 141
Exhaust pipe
Cleaning ......................................... 284
Exterior lighting
Cleaning ......................................... 283
Setting options .............................. 104
see Lights
Exterior mirrors
Adjusting ....................................... 100
Dipping (automatic) ....................... 101
10Index

Seat backrest display message ..... 229
Seat heating .................................... 96
Seat heating problem ...................... 97
Seat ventilation ................................ 96
Storing settings (memory func-
tion) ............................................... 103
Switching AIRSCARF on/off ............ 97
Switching seat heating on/off ......... 96
Switching seat ventilation on/off .... 96
Section
Wheels and tires ............................ 303
Securing a load
see Securing cargo
Securing cargo .................................. 256
Selector lever
Cleaning ......................................... 286
see Automatic transmission
Sensors (cleaning instructions) ....... 284
Service menu (on-board com-
puter) .................................................. 197
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 333
Coolant (engine) ............................ 333
Engine oil ....................................... 332
Fuel ................................................ 331
Important safety notes .................. 330
Refrigerant (air-conditioning sys-
tem) ............................................... 334
Washer fluid ................................... 334
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 242
Setting the language
see also Digital Operator's Man-
ual .................................................. 242
Setting the time
see also Digital Operator's Man-
ual .................................................. 242
Settings
Factory (on-board computer) ......... 202
On-board computer ....................... 197
SETUP (on-board computer) ............. 202
Side impact air bag ............................. 48
Side marker lamp (display mes-
sage) ................................................... 215 Side windows
Cleaning ......................................... 283
Convenience closing feature ............ 87
Convenience opening feature .......... 86
Important safety information ........... 85
Opening/closing .............................. 86
Problem (malfunction) ..................... 88
Resetting ......................................... 87
Reversing feature ............................. 85
SIRIUS services
see also Digital Opera
tor's Man-
ual .................................................. 242
SmartKey
Changing the battery ....................... 75
Changing the programming ............. 74
Checking the battery ....................... 75
Convenience closing feature ............ 87
Convenience opening feature .......... 86
Display message ............................ 230
Door central locking/unlocking ....... 72
Important safety notes .................... 72
KEYLESS-GO start function .............. 74
Loss ................................................. 76
Mechanical key ................................ 74
Overview .......................................... 72
Positions (ignition lock) ................. 121
Problem (malfunction) ..................... 76
Starting the engine ........................ 123
Smartphone
Starting the engine ........................ 123
SMS
see also Digital Operator's Man-
ual .................................................. 242
Snow chains ...................................... 305
Sockets
Center console .............................. 260
General notes ................................ 260
Rear compartment ......................... 260
Trunk ............................................. 260
Sound
Switching on/off ........................... 243
Special seat belt retractor .................. 57
Specialist workshop ............................ 29
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 201
18Index

Connecting a mobile phone (gen-
eral information) ............................ 250
Display message ............................ 230
In troduction .................................. .195
Menu (on-board computer) ............ 195
Number from the phone book ........1 96
Redialing ........................................ 196
Rejecting/ending a call ................. 196
see also Digital Operator's Man-
ual ..................................................2 42
Switching between mobile
phones ...........................................2 51
Temperature
Coolant .......................................... 187
Engine oil (on-board computer,
Mercedes-AMG vehicles) ...............2 02
Outside temperature ......................1 86
Setting (climate control) ................ 114
Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 202
Tire pressure
Calling up (on-board computer) ..... 309
Checking manually ........................ 309
Display message ............................ 226
Maximum ....................................... 308
Not reached (TIREFIT) .................... 291
Notes ............................................. 307
Reached (TIREFIT) .......................... 291
Recommended ............................... 306
Using the TIREFIT kit ......................2 90
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 310
Function/notes .............................3 09
General notes ................................ 309
Important safety notes .................. 309
Radio type approval for the tire
pressure monitor ........................... 312
Restarting ...................................... 311
Warning lamp ................................. 240
Warning message .......................... 311
TIREFIT kit
Important safety notes .................. 289
Storage location ............................ 288
Tire pressu
re not reached .............. 291
Tire pressure reached .................... 291
Using ............................................. 290 Tires
Aspect ratio (definition) ................. 320
Average weight of the vehicle
occupants (definition) .................... 319
Bar (definition) ............................... 319
Changing a wheel .......................... 321
Characteristics .............................. 319
Checking ........................................ 303
Curb weight (definition) ................. 320
Definition of terms ......................... 319
Direction of rotation ...................... 322
Display message ............................ 226
Distribution of the vehicle occu-
pants (definition) ............................ 321
DOT (Department of Transporta-
tion) (definition) ............................. 319
DOT, Tire Identification Number
(TIN) ............................................... 319
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 320
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 320
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 320
Important safety notes .................. 303
Increased vehicle weight due to
optional equipment (definition) ...... 320
Information on driving .................... 303
Kilopascal (kPa) (definition) ........... 320
Labeling (overview) ........................ 316
Load bearing index (definition) ...... 321
Load index ..................................... 318
Load index (definition) ................... 320
Maximum load on a tire (defini-
tion) ............................................... 320
Maximum loaded vehicle weight
(definition) ..................................... 320
Maximum permissible tire pres-
sure (definition) ............................. 320
Maximum tire load ......................... 318
Maximum tire load (definition) ....... 320
MOExtended tires .......................... 304
Optional equipme nt w
eight (defi-
nition) ............................................ 321
PSI (pounds per square inch) (def-
inition) ........................................... 320
Replacing ....................................... 321
Service life ..................................... 304
20Index

Opening/closing .............................. 80
Trunk load (maximum) ......................335
Turn signals
Display message ............................ 215
Switching on/off ........................... 105
Two-way radio
Frequencies ................................... 328
Installation ..................................... 328
Transmission output (maximum) .... 328
Windshield (infrared reflective) ...... 272
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 79
From inside the vehicle (central
unlocking button) .............................7 8
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles) .......202
USB devices
Connecting to the Media Inter-
face ............................................... 251
V
Vanity mirror (in the sun visor) ........258
Vehicle
Correct use ...................................... 29
Data acquisition ............................... 30
Display message ............................ 227
Equipment ....................................... 26
Individual settings .......................... 197
Limited Warranty .............................3 0
Loading .......................................... 312
Locking (in an emergency) ............... 79
Locking (SmartKey) .......................... 72
Lowering ........................................ 326
Maintenance .................................... 27
Operating safety .............................. 28
Parking .......................................... 137
Parking for a long period ................ 140
Pulling away ................................... 124
Raising ........................................... 323
Reporting problems ......................... 29
Securing from rolling away ............ 322
Towing away .................................. 298 Transporting .................................. 300
Unlocking (in an emergency) ........... 79
Unlocking (SmartKey) ...................... 72
Vehicle data ................................... 335
Vehicle dimensions ........................... 335
Vehicle emergency locking ................ 79
Vehicle identification number
see VIN
Vehicle identification plate .............. 329
Vehicle level
Active Body Control ABC ............... 156
AIRMATIC ...................................... 158
Display message ............................ 219
Vehicle tool kit .................................. 288
Video
Operating the DVD ......................... 195
see also Digital Operator's Man-
ual .................................................. 242
Video-AUX
Connecting an external video
source ............................................ 252
VIN
Type plate ...................................... 329
W
Warning and indicator lampsABS ................................................ 234
Brakes ........................................... 233
Check Engine ................................. 237
Coolant .......................................... 237
Distance warning ........................... 239
ESP
®.............................................. 234
ESP®OFF ....................................... 236
Fuel tank ........................................ 237
General notes ................................ 231
Overview .......................................... 34
Parking brake ................................ 236
PASSENGER AIR BAG ...................... 42
Reserve fuel ................................... 237
Restraint system ............................ 236
Seat belt ........................................ 232
Steering ......................................... 241
Tire pressure monitor .................... 240
Warranty .............................................. 26
Washer fluid
Display message ............................ 230
22Index

Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at
regular intervals while the engine is running.
Therefore, malfunctions can be detected in
good time.
The0075 restraint system warning lamp in the
instrument cluster lights up when the ignition is
switched on. It goes out no later than a few sec-
onds after the vehicle is started. The compo-
nents of the restraint system are in operational
readiness.
A malfunction has occurred if the 0075restraint
system warning lamp:
Rdoes not light up after the ignition is switched
on
Rdoes not go out after a few seconds with the
engine 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 lamp 0043and
PASSENGER AIR BAG OFF indicator lamp 0044are
part of the Occupant Classification System
(OCS). The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
Depending on the person in the front-passenger
seat, the front-passenger front air bag must
either be deactivated or enabled; see the fol-
lowing points. You must make sure of this both
before and during a journey.
RChildren in a child restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the instal-led child restraint system, and the age and
size of the child. Therefore, be sure to observe
the notes on the "Occupant Classification
System (OCS)" (
Ypage 49) and on "Chil-
dren in the vehicle" (Ypage 57). There you
will also find instructions on rearward and
forward-facing child restraint systems on the
front-passenger seat.
RAll other persons: depending on the classi-
fication of the person in the front-passenger
seat, the front-passenger front air bag is ena-
bled or deactivated (
Ypage 49). Be sure to
observe the notes on "Seat
belts“ (
Ypage 42) and "Air bags"
(Ypage 46). There you can also find infor-
mation on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means of
restricting the movement of vehicle occupants
in the event of an accident or the vehicle rolling over. This reduces the risk of vehicle occupants
coming into contact with parts of the vehicle
interior or being ejected from the vehicle. Fur-
thermore, the seat belt helps to keep the vehicle
42Occupant safety
Safety

ETS traction control is part of ESP®. On vehicles
with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP
®.
Important safety notes
GWARNING
If ESP
®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP
®checked at a
qualified specialist workshop.
If the 00BB ESP
®OFF warning lamp lights up
continuously, then ESP®is deactivated.
If the 00E5 ESP®warning lamp lights up contin-
uously, ESP®is not available due to a malfunc-
tion.
Observe the information on warning lamps
(
Ypage 234) and display messages which may
be shown in the instrument cluster
(
Ypage 204).
Only use wheels with the recommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the 00E5 ESP warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP
®intervenes, the 00E5ESP®warning lamp
flashes in the instrument cluster.
If ESP
®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depress the accelerator pedal as far as
necessary when pulling away.
XAdapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops
moving. The engine starts automatically when
the driver wants to pull away again. ESP
®
remains in its previously selected status, e.g. if
ESP®was deactivated before the engine was
automatically switched off.
Deactivating/activating ESP®
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
You can select between the following states of
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP
®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Spinning the wheels results in a cutting action
which provides better grip.
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehicle if
the vehicle starts to skid or a wheel starts to
spin.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
Deactivating/activating ESP®
You can deactivate or activate ESP®via the on-
board computer (Ypage 197).
ESP®deactivated:
The 00BB ESP®OFF warning lamp in the instru-
ment cluster lights up.
Driving safet ysystem s67
Safety
Z

ESP®activated:
The 00BB ESP®OFF warning lamp in the instru-
ment cluster goes out.
Characteristics when ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the 00E5ESP®warning lamp in the
instrument cluster flashes. In such situations,
ESP
®will not stabilize the vehicle.
If you deactivate ESP®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheels are able to spin.
RTraction control is still activated.
RCOLLISION PREVENTION ASSIST is no longer
available; nor is it activated if you brake firmly
with assistance from ESP
®.
RPRE-SAFE®is no longer available, nor is it
activated if you brake firmly and ESP®inter-
venes.
RPRE-SAFE®Brake is no longer available, it is
also not activated if you brake firmly and ESP®
intervenes.
RESP®still provides support when you brake
firmly.
Crosswind Assist
General information
Vehicles with MAGIC BODY CONTROL: informa-
tion on stabilizing the vehicle in the event of
crosswind (
Ypage 156).
Strong crosswind gusts can impair the ability of
your vehicle to drive straight ahead. The cross-
wind driving assistance function integrated in
ESP
®noticeably reduces these impairments.
ESP®intervenes automatically according to the
direction and intensity of the crosswinds affect-
ing your vehicle.
ESP
®intervenes with stabilizing braking to
assist you in keeping the vehicle in the lane.
Crosswind Assist is active at vehicle speeds
above 50 mph (80 km/h)when driving straight
ahead or cornering gently.
Important safety notes
Crosswind Assist does not work if ESP®is
switched off or deactivated because of a mal-
function.
EBD (electronic brake force distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
while braking.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
GWARNING
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (
Ypage 234) as well as display
messages (Ypage 206).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to
the braking function, ADAPTIVE BRAKE also has
the HOLD function (
Ypage 154) and hill start
assist (Ypage 124).
PRE-SAFE®Brake
General information
PRE-SAFE®Brake can help you to minimize the
risk of a collision with a vehicle ahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE
®Brake has detected a risk
of collision, you will be warned visually and
acoustically as well as by automatic braking.
iPay attention to the important safety notes
in the "Driving safety systems" section
(
Ypage 61).
PRE ‑SAFE
®Brake is only available in vehicles
with the Driving Assistance Plus package.
68Driving safety systems
Safety

multimedia system; see the Digital Operator's
Manual.
You will receive visual and acoustic locking con-
firmation if all components were able to be
locked.
When the locator lighting is activated via the
multimedia system, it lights up when it is dark
after the vehicle is unlocked with the SmartKey;
see the Digital Operator's Manual.
XTo open the trunk lid automatically from
outside the vehicle:press and hold the0054
button until the trunk lid opens.
XTo open the trunk lid automatically from
outside the vehicle: if the SmartKey is loca-
ted in the immediate vicinity of the vehicle,
press the 0054button on the SmartKey.
When the trunk lid closes you can then
release the button.
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a Smart-
Key in the vehicle (
Ypage 123).
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry the
SmartKey with you. You can combine the func-
tions of KEYLESS-GO with those of a conven-
tional SmartKey. Unlock the vehicle by using
KEYLESS-GO, for instance, and lock it using the
0037 button on the SmartKey.
The driver's door and the door at which the han-
dle is used, must both be closed. The SmartKey
must be outside the vehicle. When locking or
unlocking with KEYLESS-GO, the distance
between the SmartKey and the corresponding
door handle must not be greater than 3 ft (1 m).
A brief radio connection between the vehicle
and the SmartKey determines whether a valid
SmartKey is in, or in the direct vicinity of, the
vehicle. This occurs, for example:
Rwhen starting the engine
Rwhile driving
Rwhen using HANDS-FREE ACCESS
Rwhen the external door handles are touched
Rduring convenience closing
XTo unlock the vehicle: touch the inner sur-
face of the door handle.
XTo lock the vehicle: touch sensor surface 0043
or 0044.
Make sure that you do not touch the inner
surface of the door handle.
XConvenience closing feature: touch
recessed sensor surface 0044for an extended
period.
Further information on the convenience clos-
ing feature (
Ypage 87).
XTo open the trunk lid: push in the top of the
star on the trunk lid.
The trunk lid opens.
Deactivating and activating
If you do not intend to use a SmartKey for an
extended period of time, you can deactivate the
KEYLESS-GO function of the SmartKey. The
SmartKey will then use very little power, thereby
conserving battery power. For the purposes of
activation/deactivation, the vehicle must not be
nearby.
XTo deactivate: press the0037button on the
SmartKey twice in rapid succession.
The battery check lamp (
Ypage 75) of the
SmartKey flashes twice briefly and lights up
once, 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 features
are available again.
SmartKey73
Opening and closing
Z