2018 MERCEDES-BENZ CLS belt

BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Function/notes ................................ 65
BAS PLUS with Cross-Traffic Assist
(Brake Assist PLUS with Cross-
Traffic Assist)
Important safety notes .................... 65
Battery (SmartKey)
Checking .......................................... 79
Important safety notes .................... 78
Replacing ......................................... 79
Battery (vehicle)
Charging ........................................ 284
Display message ............................ 214
Important safety notes .................. 282
Jump starting ................................. 285
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 196
Display message ............................ 217
Notes/function .............................. 179
see Active Blind Spot Assist
Bluetooth ®
Connecting a different mobile
phone ............................................ 241
Searching for a mobile phone ........ 240
see also Digital Operator's Man-
ual .................................................. 236
Telephony ...................................... 239
Box (trunk) ......................................... 246
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 206
Notes ............................................. 326
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 212
Brakes
ABS .................................................. 64
Adaptive Brake Assist ...................... 68
BAS .................................................. 65
BAS PLUS with Cross-Traffic
Assist ............................................... 65 Brake fluid (notes) ......................... 326
Display message ............................ 204
High-performance brake system .... 146
HOLD function ............................... 157
Important safety notes .................. 145
Maintenance .................................. 145
Parking brake ................................ 142
Riding tips ...................................... 145
Warning lamp ................................. 228
Breakdown
Where will I find...? ........................ 277
see Flat tire
see Towing away
Brightness control (instrument
cluster li ghtin g) ...................................
34
C California
Important notice for retail cus-
tomers and lessees .......................... 26
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 274
Car wash ........................................ 270
Carpets .......................................... 276
Display ........................................... 275
Exhaust pipe .................................. 274
Exterior lights ................................ 274
Interior ........................................... 275
Matte finish ................................... 272
Notes ............................................. 270
Paint .............................................. 272
Plastic trim .................................... 275
Power washer ................................ 271
Rear view camera .......................... 274
Roof lining ...................................... 276
Seat belt ........................................ 276
Seat cover ..................................... 275
Selector lever ................................ 275
Sensors ......................................... 274
Steering wheel ............................... 275
Trim pieces .................................... 275
Washing by hand ........................... 271
Wheels ........................................... 2736
Index

Windows ....................................... .2 73
Wiper blades .................................. 273
Wooden trim .................................. 275
Cargo tie down rings ......................... 246
CD
see also Digital Operator's Man-
ual ................................................. .2 36
CD player (on-board computer) ....... .1 93
Center console
Lower section .................................. 37
Lower section (AMG vehicles) .......... 38
Upper section .................................. 36
Central locking
Automatic locking (on-board com-
puter) ............................................. 199
Locking/unlocking (SmartKey) ....... .7 6
Child
Restraint system .............................. 59
Child seat
Forward-facing restraint system ...... 62
LATCH-type (ISOFIX) child seat
anchors ............................................ 60
On the front-passenger seat ............ 61
Rearward-facing restraint system .... 62
Top Tether ...................................... .6 0
Child-proof locks
Important safety notes .................... 62
Rear doors ...................................... .6 3
Children
Special seat belt retractor .............. .5 8
Cigarette lighter ................................ 252
Cleaning
Mirror turn signal .......................... .2 74
Climate control
Automatic climate control (3-
zone) .............................................. 114
Controlling automatically .............. .1 17
Coo ling w ith air dehumidification .. 116
Defrosti
ng the windows ................. 119
Defrosting the windshield .............. 118
Dual-zone automatic climate con-
trol ................................................. 112
General notes ................................ 112
Indicator lamp ................................ 117
Information about using auto-
matic climate control ..................... 115
Maximum cooling .......................... 119
Overview of systems ..................... .1 12 Problem with the rear window
defroster ........................................ 120
Problems with cooling with air
dehumidification ............................ 117
Rear control panel ......................... 114
Refrigerant ..................................... 327
Refrigerant filling capacity ............. 328
Setting the air distribution ............. 118
Setting the air vents ..................... .1 21
Setting the airflow ......................... 118
Setting the climate mode (AIR
FLOW) ............................................ 117
Setting the temperature ................ 117
Setting the temperature with 3-
zone automatic climate control ..... 117
Setting the temperature with dual-
zone automatic climate control ..... 117
Switching air-recirculation mode
on/off ............................................ 120
Switching on/off ........................... 116
Switching residual heat on/off ...... 120
Switching the rear window
defroster on/off ............................ 119
Switching the ZONE function
on/off ............................................ 118
Cockpit
Overview .......................................... 33
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 319
see Emergency spare wheel
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 196
Display message ............................ 206
Operation/notes .............................. 67
COMAND
Switching on/off ........................... 237
COMAND display
Cleaning ................................... ...... 275
C o mbination switch .......................... 106
Connecting a USB device
see also Digital Operator's Man-
ual ................................................. .2 36
Consumption statistics (on-board
computer) .......................................... 191
Controller .......................................... .2 37
Convenience box ............................... 246Index 7

Notes on breaking-in a new vehi-
cle ....................................................... 122
O Occupant Classification System
(OCS)
Conditions ....................................... 49
Faults ............................................... 52
Operation ......................................... 49
System self-test ............................... 51
Occupant safety
Air bags ........................................... 46
Automatic measures after an acci-
dent ................................................. 58
Children in the vehicle ..................... 58
Important safety notes .................... 41
Introduction to the restraint sys-
tem .................................................. 41
Occupant Classification System
(OCS) ............................................... 49
PASSENGER AIR BAG indicator
lamps ............................................... 42
Pets in the vehicle ........................... 63
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 56
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS) .............. 57
Restraint system warning lamp ........ 42
Seat belt .......................................... 42
OCS
Conditions ....................................... 49
Faults ............................................... 52
Operation ......................................... 49
System self-test ............................... 51
Odometer ........................................... 190
Oil
see Engine oil
On-board computer
AMG menu ..................................... 201
Assistance menu ........................... 195
Audio menu ................................... 193
Convenience submenu .................. 199
Display messages .......................... 203
Displaying a service message ........ 270
DISTRONIC PLUS ........................... 154
Factory settings submenu ............. 200
Important safety notes .................. 188 Instrument cluster submenu .......... 197
Lighting submenu .......................... 198
Menu overview .............................. 190
Message memory .......................... 203
Navigation menu ............................ 192
Operation ....................................... 189
RACETIMER ................................... 201
Service menu ................................. 197
Settings menu ............................... 197
Standard display ............................ 190
Telephone menu ............................ 194
Trip menu ...................................... 190
Vehicle submenu ........................... 199
Video DVD operation ..................... 193
Operating safety
Declara tion o f conformity ................ 28
Impo
rtant safety notes .................... 28
Operating system
see On-board computer
Operation
Digital Operator's Manual ................ 24
Operator's Manual
Vehicle equipment ........................... 26
Outside temperature display ........... 188
Overhead control panel ...................... 39
Override feature
Rear side windows ........................... 63
P
Paint code number ............................ 322
Paintwork (cleaning instructions) ... 272
Panic alarm .......................................... 41
Parking
Important safety notes .................. 141
Parking brake ................................ 142
Parking position for the exterior
mirror on the front-passenger
side ................................................ 102
Rear view camera .......................... 169
see PARKTRONIC
Parking aid
Active Parking Assist ..................... 165
see Exterior mirrors
see PARKTRONIC
Parking brake
Display message ............................ 205
Notes/function .............................. 142 Index 15

Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 327
Refueling
Fuel gauge ....................................... 34
Important safety notes .................. 138
Refueling process .......................... 139
see Fuel
Remote control
Garage door opener ....................... 261
Programming (garage door
opener) .......................................... 261
Replacing bulbs
General notes ................................ 109
Reporting safety defects .................... 29
Rescue card ......................................... 30
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 215
Warning lamp ................................. 232
see Fuel
Residual heat (climate control) ........ 120
Restraint system
Display message ............................ 208
Introduction ..................................... 41
Problem (malfunction) ................... 231
Warning lamp (function) ................... 42
Reverse gear (selector lever) ........... 129
Reversing feature
Side windows ................................... 87
Sliding sunroof ................................. 90
Trunk lid ........................................... 83
Reversing lamps (display mes-
sage) ................................................... 212
Roadside Assistance (breakdown) .... 27
Roller sunblind
Rear window .................................. 251
Roof lining and carpets (cleaning
guidelines) ......................................... 276
Roof load (maximum) ........................ 328
Route guidance
see also Digital Operator's Man-
ual .................................................. 236 S Safety
Children in the vehicle ..................... 58
see Occupant safety
Safety system
see Driving safety systems
SD card
Inserting ........................................ 241
Inserting/removing ........................ 241
Removing ....................................... 241
SD memory card
see also Digital Operator's Man-
ual .................................................. 236
Selecting ........................................ 193
Search & Send
see also Digital Operator's Man-
ual .................................................. 236
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 45
Adjusting the height ......................... 44
Cleaning ......................................... 276
Correct usage .................................. 44
Fastening ......................................... 44
Important safety guidelines ............. 43
Introduction ..................................... 42
Releasing ......................................... 45
Switching belt adjustment on/off
(on-board computer) ...................... 200
Warning lamp ................................. 227
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 94
Adjusting the 4-way lumbar sup-
port .................................................. 97
Adjusting the active multicontour
seat .................................................. 97
Adjusting the head restraint ............ 95
Adjusting the multicontour seat ....... 96
Cleaning the cover ......................... 275
Correct driver's seat position ........... 93
Important safety notes .................... 93
Overview .......................................... 93
Seat heating .................................... 97
Seat heating problem ...................... 98
Storing settings (memory func-
tion) ............................................... 104 Index 17

Switching seat heating on/off ......... 97
Switching seat ventilation on/off .... 98
Section
Trunk ............................................... 83
Securing cargo .................................. 246
Selector lever
Cleaning ......................................... 275
Sensors (cleaning instructions) ....... 274
Service menu (on-board com-
puter) .................................................. 197
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 326
Coolant (engine) ............................ 326
Engine oil ....................................... 325
Fuel ................................................ 324
Important safety notes .................. 323
Refrigerant (air-conditioning sys-
tem) ............................................... 327
Washer fluid ................................... 327
Setting the air distribution ............... 118
Setting the airflow ............................ 118
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 236
Setting the language
see also Digital Operator's Man-
ual .................................................. 236
Setting the time
see also Digital Operator's Man-
ual .................................................. 236
Settings
Factory (on-board computer) ......... 200
On-board computer ....................... 197
SETUP (on-board computer) ............. 201
Side impact air bag ............................. 47
Side marker lamp (display mes-
sage) ................................................... 212
Side windows
Cleaning ......................................... 273
Convenience closing feature ............ 88
Convenience opening feature .......... 88
Important safety information ........... 87
Opening/closing .............................. 87
Problem (malfunction) ..................... 89
Resetting ......................................... 89 Reversing feature ............................. 87
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 236
Sliding sunroof
Important safety notes .................... 90
Opening/closing .............................. 91
Problem (malfunction) ..................... 91
Resetting ......................................... 91
SmartKey
Changing the battery ....................... 79
Changing the programmi ng ............. 77
C h ecking the battery ....................... 79
Convenience closing feature ............ 88
Convenience opening feature .......... 88
Display message ............................ 225
Door central locking/unlocking ....... 76
Important safety notes .................... 76
Loss ................................................. 80
Mechanical key ................................ 78
Overview .......................................... 76
Positions (ignition lock) ................. 123
Problem (malfunction) ..................... 80
Starting the engine ........................ 125
SMS
see also Digital Operator's Man-
ual .................................................. 236
Snow chains ...................................... 294
Sockets
Center console .............................. 253
General notes ................................ 253
Rear compartment ......................... 254
Sound
Switching on/off ........................... 237
Spare wheel
Stowing .......................................... 319
Special seat belt retractor .................. 58
Specialist workshop ............................ 29
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 191
In the Instrument cluster ................. 34
Segments ...................................... 188
Selecting the display unit ............... 197
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 7118
Index

Data acquisition ............................... 30
Display message ............................ 223
Equipment ....................................... 26
Individual settings .......................... 197
Limited Warranty ............................. 30
Loading .......................................... 302
Locking (in an emergency) ............... 83
Locking (SmartKey) .......................... 76
Lowering ........................................ 316
Maintenance .................................... 27
Parking for a long period ................ 143
Pulling away ................................... 125
Raising ........................................... 313
Reporting problems ........................ .2 9
Securing from rolling away ............ 313
Towing away .................................. 287
Transporting .................................. 289
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ...................... 76
Vehicle data ................................... 328
Vehicle data ....................................... 328
Vehicle dimensions ........................... 328
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 322
Vehicle level
AIRMATIC ...................................... 159
Vehicle level (display message) ....... 215
Vehicle tool kit .................................. 277
Video
Operating the DVD ......................... 193
see also Digital Operator's Man-
ual .................................................. 236
VIN
Seat ............................................... 323
Type plate ...................................... 322
Voice Control System
see See also Digital Operator's Manual
W
Warning and indicator lamps
ABS ................................................ 229
Brakes ........................................... 228
Check Engine ................................. 232
Coolant .......................................... 232
Distance warning ........................... 234 ESP ®
.............................................. 229
ESP ®
OFF ....................................... 230
Fuel tank ........................................ 232
General notes ................................ 226
Overview .......................................... 34
PASSENGER AIR BAG OFF ............... 42
Reserve fuel ................................... 232
Restraint system ............................ 231
Seat belt ........................................ 227
SPORT handling mode ................... 231
Tire pressure monitor .................... 235
Warranty .............................................. 26
Washer fluid
Display message ............................ 225
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 236
Wheel and tire combinations
Tires ............................................... 317
Wheel bolt tightening torque ........... 316
Wheel chock ...................................... 313
Wheels
Changing a wheel .......................... 312
Checking ........................................ 292
Cleaning ......................................... 273
Emergency spare wheel ................. 317
Important safety notes .................. 292
Information on driving .................... 292
Interchanging/changing ................ 312
Mounting a new wheel ................... 315
Mounting a wheel .......................... 313
Removing a wheel .......................... 315
Storing ........................................... 313
Tightening torque ........................... 316
Wheel size/tire size ....................... 317
Window curtain air bag
Operation ......................................... 49
Windows
see Side windows
Windshield
Defrosting ...................................... 118
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 269
Important safety notes .................. 32722
Index

The vehicle is read out by employees of the ser-
vice network (including the manufacturer) using
special diagnostic testers. More detailed infor-
mation is obtained from it, if required.
After a malfunction has been rectified, the infor-
mation is deleted from the malfunction memory
or is continually overwritten.
When operating the vehicle, situations are con-
ceivable in which this technical data, in connec-
tion with other information (if necessary, under
consultation with an authorized expert), could
be traced to a person.
Examples include: R
accident reports R
damage to the vehicle R
witness statements
Further additional functions that have been con-
tractually agreed upon with the customer allow
certain vehicle data to be conveyed by the vehi-
cle as well. The additional functions include, for
example, vehicle location in case of an emer-
gency.
COMAND/mbrace If the vehicle is equipped with COMAND or
mbrace, additional data about the vehicle's
operation, the use of the vehicle in certain sit-
uations, and the location of the vehicle may be
compiled through COMAND or the mbrace sys-
tem.
For additional information please refer to the
COMAND User Manual or the Digital Owners
Manual and/or the mbrace Terms and Condi-
tions.
Event data recorders This vehicle is equipped with an event data
recorder (EDR). This vehicle is equipped with an
event data recorder (EDR). The main purpose of
an EDR is to record, in certain crash or near
crash-like situations, such as an air bag deploy-
ment or hitting a road obstacle, data that will
assist in understanding how a vehicle's systems
performed. The EDR is designed to record data
related to vehicle dynamics and safety systems
for a short period of time, typically 30 seconds
or less. The EDR in this vehicle is designed to record
such data as: R
How various systems in your vehicle were
operating R
Whether or not the driver and passenger
safety belts were buckled/fastened R
How far (if at all) the driver was depressing the
accelerator and/or brake pedal and R
How fast the vehicle was traveling.
These data can help provide a better under-
standing of the circumstances in which crashes
and injuries occur. NOTE: EDR data are recorded
by your vehicle only if a non-trivial crash situa-
tion occurs; no data are recorded by the EDR
under normal driving conditions and no personal
data (e.g. name, gender, age and crash location)
are recorded. However, other parties, such as
law enforcement could combine the EDR data
with the type of personally identifying data rou-
tinely acquired during a crash investigation.
Access to the vehicle and/or the EDR is needed
to read data that is recorded by an EDR, and
special equipment is required. In addition to the
vehicle manufacturer, other parties that have
the special equipment, such as law enforce-
ment, can read the information by accessing the
vehicle or the EDR.
EDR data may be used in civil and criminal mat-
ters as a tool in accident reconstruction, acci-
dent claims and vehicle safety. Since the Crash
Data Retrieval CDR tool that is used to extract
data from the EDR is commercially available,
Mercedes-Benz USA, LLC ("MBUSA") expressly
disclaims any and all liability arising from the
extraction of this information by unauthorized
Mercedes-Benz personnel.
MBUSA will not share EDR data with others
without the consent of the vehicle owners or, if
the vehicle is leased, without the consent of the
lessee. Exceptions to this representation
include responses to subpoenas by law enforce-
ment; by federal, state or local government; in
connection with or arising out of litigation involv-
ing MBUSA or its subsidiaries and affiliates; or,
as required by law.
Warning: The EDR is a component of the
Restraint System Module. Tampering with, alter-
ing, modifying or removing the EDR component
may result in a malfunction of the Restraint Sys-
tem Module and other systems.
State laws or regulations regarding EDRs that
conflict with federal regulation are pre-empted.
This means that in the event of such conflict, theData stored in the vehicle 31
Introduction Z

Panic alarm X
To arm: press 3 button C for approx-
imately one second.
A visual and audible alarm is triggered if the
alarm system is armed. X
To disarm: press 3 button C again.
or X
Insert the SmartKey into the ignition lock.
or, on vehicles with KEYLESS ‑ GO:X
Press the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system The restraint system can reduce the risk of vehi-
cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces
to which vehicle occupants are subjected during
an accident.
The restraint system comprises: R
seat belt system R
air bags R
child restraint system R
child seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants: R
have fastened their seat belts correctly
( Y
page 44) R
have adjusted their seat and head restraint
properly ( Y
page 93). As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position ( Y
page 93).
You also have to make sure that an air bag can
inflate properly if deployed ( Y
page 46).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par-
ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against objects penetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" ( Y
page 53).
For information on children traveling with you in
the vehicle and on child restraint systems, see
"Children in the vehicle" ( Y
page 58).
Important safety notes
G WARNING
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 the
restraint system to accommodate a person
with disabilities, contact an authorized
Mercedes-Benz Center for details. USA only:
for further information contact our Customer
Assistance Center at 1-800-FOR-MERCedes
(1 ‑ 800 ‑ 367 ‑ 6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.Occupant safety 41
Safety Z