2016 MERCEDES-BENZ CLS ECU

General notes .................................. 78
Inserting .......................................... 78
Locking vehicle ................................ 83
Removing ........................................ .7 8
Unlocking the driver's door .............. 83
Media Interface
USB port in the armrest of the
center console .............................. .2 53
see Separate operating instructions
Memory card (audio) ......................... 201
Memory function ............................... 105
Mercedes-Benz Intelligent Drive
360°camera .................................. 181
Active Blind Spot Assist ................. 190
Active Lane Keeping Assist ............ 193
Active Parking Assist ..................... 173
ATTENTION ASSIST ........................ 184
Blind Spot Assist ............................ 187
Cruise control ................................ 153
DISTRONIC PLUS ........................... 155
DISTRONIC PLUS with Steering
Assist and Stop&Go Pilot .............. .1 62
General notes ................................ 153
Lane Keeping Assist ..................... .1 89
PARKTRONIC ................................. 170
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 56
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS) .............. 57
Rear view camera .......................... 177
Traffic Sign Assist .......................... 186
Message memory (on-board com-
puter) ................................................. .2 12
Messages
see Display messages
Mirrors
see Exterior mirrors
see Vanity mirror (in the sun visor)
Mobile phone
Connecting (Bluetooth ®
inter-
face) .............................................. 248
Connecting another mobile
phone ............................................ 250
Frequencies ................................... 329
Installation ............................ ......... 329
Menu (on-board computer) ............ 202
Tra nsmi
ssion output (maximum) .... 329 Modifying the programming
(SmartKey) .......................................... .7 7
MOExtended tires .............................. 287
Mounting wheels
Lowering the vehicle ...................... 324
Mounting a new wheel ................... 324
Preparing the vehicle .................... .3 21
Raising the vehicle ......................... 322
Removing a wheel .......................... 323
Securing the vehicle against roll-
ing away ........................................ 321
MP3
Operation ....................................... 201
see also Digital Operator's Man-
ual ................................................. .2 45
Multicontour seat
Adjusting (on the seat) ..................... 97
Multifunction display
Function/notes ............................ .1 98
Permanent display ......................... 206
Multifunction steering wheel
Operating the on-board computer .. 197
Overview .......................................... 35
Multimedia system
see Separate operating instructions
Music files
see also Digital Operator's Man-
ual ................................................. .2 45
N
Navigation
Menu (on-board computer) ............ 200
see also Digital Operator's Man-
ual ................................................. .2 45
NECK-PRO head restraints
Operation ......................................... 55
Resetting triggered .......................... 56
NECK-PRO luxury head restraints
Important safety notes .................... 55
Operation ......................................... 55
Resetting when triggered ................. 56
Notes on breaking-in a new vehi-
cle ....................................................... 126 Index 13

Refuelin g process .......................... 14 4
see Fue l
Remote contro l
Garag e doo r opener ...................... .2 69
Programming (garage door
opener) .......................................... 270
Replacing bulbs
General notes ................................ 111
Reporting safety defects .................... 29
Rescue card ......................................... 30
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 224
Warning lamp ................................. 241
see Fuel
Residual heat (climate control) ....... .1 24
Restraint system
Display message ............................ 217
Introduction ..................................... 41
Problem (malfunction) ................... 240
Warning lamp (function) ................... 41
Reverse gear (selector lever) ........... 134
Reversing feature
Side windows ................................... 87
Sliding sunroof ................................. 91
Trunk lid .......................................... .8 3
Reversing lamps (display mes-
sage) ................................................... 221
Roadside Assistance (breakdown) .... 27
Roller sunblind
Rear window .................................. 260
Roof lining and carpets (cleaning
guidelines) ......................................... 285
Roof load (maximum) ........................ 336
Route guidance
see also Digital Operator's Man-
ual .................................................. 245
S
Safety
Children in the vehicle ..................... 58
see Occupant safety
Safety system
see Driving safety systems
SD memory card
Ejecting .......................................... 250 Inserting ........................................ 250
Inserting/removing ........................ 250
see also Digital Operator's Man-
ual .................................................. 245
Selecting ........................................ 201
Search & Send
see also Digital Operator's Man-
ual .................................................. 245
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 45
Adjusting the height ......................... 44
Cleaning ......................................... 284
Correct usage .................................. 44
Fastening ......................................... 44
Important safety guidelines ............. 43
Introduction ..................................... 42
Releasing ......................................... 45
Switching belt adjustment on/off
(on-board computer) ...................... 208
Warning lamp ................................. 236
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 95
Adjusting the 4-way lumbar sup-
port .................................................. 98
Adjusting the active multicontour
seat .................................................. 98
Adjusting the head restraint ............ 96
Adjusting the multicontour seat ....... 97
Cleaning the cover ......................... 284
Correct driver's seat position ........... 94
Important safety notes .................... 94
Overview .......................................... 94
Seat heating .................................... 98
Seat heating problem .................... 100
Storing settings (memory func-
tion) ............................................... 105
Switching seat heating on/off ......... 98
Switching seat ventilation on/
off .................................................... 98
Section
Trunk ............................................... 83
Securing cargo .................................. 255
Selector lever
Cleaning ......................................... 284
Sensors (cleaning instructions) ....... 28216
Index

Reporting problem s ........................ .2 9
Securing from rolling away ............ 321
Towing away .................................. 296
Transporting .................................. 298
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ...................... 76
Vehicle data ................................... 336
Vehicle data ....................................... 336
Vehicle dimensions ........................... 336
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 330
Vehicle level
AIRMATIC ...................................... 166
Vehicle level (display message) ....... 224
Vehicle tool kit .................................. 286
Video
Operating the DVD ......................... 202
see also Digital Operator's Man-
ual .................................................. 245
VIN
Seat ............................................... 331
Type plate ...................................... 330
Voice Control System
see Separate operating instructions
W
Warning and indicator lamps
ABS ................................................ 238
Brakes ........................................... 237
Check Engine ................................. 241
Coolant .......................................... 241
Distance warning ........................... 243
ESP ®
.............................................. 238
ESP ®
OFF ....................................... 239
Fuel tank ........................................ 241
General notes ................................ 235
Overview .......................................... 34
PASSENGER AIR BAG OFF ............... 42
Reserve fuel ................................... 241
Restraint system ............................ 240
Seat belt ........................................ 236
SPORT handling mode ................... 240
Tire pressure monitor .................... 244
Warranty .............................................. 26 Washer fluid
Display message ............................ 234
Wheel and tire combinations
Tires ............................................... 325
Wheel bolt tightening torque ........... 324
Wheel chock ...................................... 321
Wheels
Changing a wheel .......................... 320
Checking ........................................ 301
Cleaning ......................................... 281
Emergency spare wheel ................. 326
Important safety notes .................. 301
Information on driving .................... 301
Interchanging/changing ................ 320
Mounting a new wheel ................... 324
Mounting a wheel .......................... 321
Removing a wheel .......................... 323
Storing ........................................... 321
Tightening torque ........................... 324
Wheel size/tire size ....................... 325
Window curtain air bag
Operation ......................................... 49
Windows
see Side windows
Windshield
Defrosting ...................................... 122
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 277
Important safety notes .................. 335
Windshield wipers
Problem (malfunction) ................... 113
Replacing the wiper blades ............ 112
Switching on/off ........................... 111
Winter driving
Important safety notes .................. 303
Slippery road surfaces ................... 152
Snow chains .................................. 303
Winter tires
M+S tires ....................................... 303
Wiper blades
Cleaning ......................................... 282
Important safety notes .................. 112
R e
placing ....................................... 112
Wooden trim (cleaning instruc-
tions) .................................................. 284 Index 21

Diagnostics connection The diagnostic s connection is only intended fo r
th e connection of diagnostic equipmen t at a
qualified specialis t workshop .
G WARNING
If you connec t equipmen t to th e diagnostic s
connection in th e vehicle, it may affec t th e
operation of th e vehicle systems . As a result ,
th e operatin g safet y of th e vehicle could be
affected. There is a ris k of an accident.
Do no t connec t any equipmen t to a diagnos-
tics connection in th e vehicle.
G WARNING
Objects in th e driver's footwell can restric t th e
peda l trave l or obstruct a depressed pedal.
The operatin g and road safet y of th e vehicle is
jeopardized. There is a ris k of an accident.
Mak e sur e that all objects in th e vehicle are
stowed correctly, and that they canno t ente r
th e driver's footwell. Install th e floormat s
securely and as specifie d in order to ensur e
sufficien t clearanc e fo r th e pedals. Do no t use
loose floormat s and do no t plac e floormat s on
to p of on e another.
! If th e engin e is switched of f and equipmen t
on th e diagnostic s connection is used , th e
starter battery may discharge.
Connectin g equipmen t to th e diagnostic s con-
nection can lead to emission s monitorin g infor-
mation bein g reset , fo r example. Thi s may lead
to th e vehicle failin g to mee t th e requirements of
th e next emission s test durin g th e main inspec-
tion .
Qualified specialist workshop An authorized Mercedes-Ben z Cente r is a quali-
fie d specialis t workshop . It has th e necessary
specialis t knowledge , tools and qualification s to
correctl y carry out th e wor k require d on your
vehicle. Thi s is especially th e cas e fo r wor k rel -
evant to safety.
Observ e th e note s in th e Maintenance Booklet . Always hav e th e followin g wor k carrie d out at an
authorized Mercedes-Ben z Center:R
wor k relevant to safet yR
servic e and maintenance wor kR
repair wor k R
alterations, installation wor k and modifica-
tion s R
wor k on electronic component s
Correct us eIf you remov e any warnin g stickers , you or oth-
ers could fail to recogniz e certain dangers.
Leave warnin g stickers in position .
Observ e th e followin g information when drivin g
your vehicle: R
th e safet y note s in this manual R
th e vehicle technical dat aR
traffic rule s and regulation sR
laws and safet y standard s pertainin g to moto r
vehicles
Problem s wit h you r vehicleIf you should experience a problem wit h your
vehicle, particularly on e that you believe may
affec t it s saf e operation , we urg e you to contact
an authorized Mercedes-Ben z Cente r immedi-
ately to hav e th e problem diagnosed and recti -
fied. If th e problem is no t resolved to your sat -
isfaction , please discus s th e problem again wit h
a Mercedes-Ben z Cente r or contact us at on e of
th e followin g addresses.
In th e USA
Customer Assistanc e Cente r
Mercedes-Ben z USA, LL C
On e Mercedes Drive
Montvale, NJ 07645-0350
In Canad a
Customer Relation s Departmen t
Mercedes-Ben z Canada, Inc.
98 Vanderhoo f Avenue
Toronto , Ontario M4 G 4C9
Reporting safet y defect s
US A only:Operating safety 29
Introduction Z

The following text is published as required of
manufacturers under Title 49, Code of U.S. Fed-
eral Regulations, Part 575 pursuant to the
"National Traffic and Motor Vehicle Safety Act of
1966".
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz
USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at
1-888-327-4236(TTY: 1-800-424-9153 ); go to
http://www.safercar.gov ; or write to: Admin-
istrator, NHTSA, 400 Seventh Street, SW.,
Washington, DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
! Follow the instructions in this manual about
the proper operation of your vehicle as well as
about possible vehicle damage. Damage to
your vehicle that arises from culpable contra-
ventions against these instructions is not cov-
ered either by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War-
ranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information under http://
portal.aftersales.i.daimler.com/public/ content/asportal/en/communication/
informationen_fuer/QRCode.html.
Data stored in the vehicle
Data storage A wide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about: R
vehicle's operating state R
incidents R
malfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example: R
operating conditions of system components,
e.g. fluid levels R
the vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment, lateral acceleration, accelerator pedal
position R
malfunctions and defects in important system
components, e.g. lights, brakes R
vehicle reactions and operating conditions in
special driving situations, e.g. air bag deploy-
ment, intervention of stability control sys-
tems R
ambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to: R
assist in recognizing and rectifying malfunc-
tions and defects R
analyze vehicle functions, e.g. after an acci-
dent R
optimize vehicle function
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and malfunction data memory.
Services include, for example: R
repair services R
service processes R
warranties R
quality assurance30
Data stored in the vehicle
Introduction

Panic alarm X
To activate: press the 3 button C for
approximately one second.
A visual and audible alarm is triggered if the
alarm system is armed. X
To deactivate: press the 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.
Furthermore, the restraint system may also
reduce the forces exerted on the vehicle occu-
pants when an accident occurs.
The restraint system includes: R
Seat belt system R
Air bags R
Child restraint system R
Child seat securing system
The components of the restraint system work in
conjunction with each other. They can only offer
the intended level of protection if all vehicle
occupants: R
are correctly wearing their seat belts.
( Y
page 44) R
adjust their seat and head restraint properly
( Y
page 94). The driver is also responsible for ensuring that
the steering wheel has been correctly posi-
tioned. Observe the information relating to the
correct driver's seat position ( Y
page 94).
Always ensure the air bag can inflate properly if
deployed ( Y
page 46).
An air bag supplements a correctly fastened
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 the protection already provided by a cor-
rectly fastened seat belt will suffice, the air bags
are not deployed. Furthermore, only the air bags
that would increase the degree of protection
afforded to the vehicle occupants in the event of
an accident are deployed. 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 Emergency Ten-
sioning Devices and air bags" ( Y
page 53).
See “Children in the vehicle” for information on
children traveling with you as well as vehicle
restraint systems ( 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 an air bag system to
accommodate a person with disabilities, con-
tact an authorized Mercedes-Benz Center for
details. USA only: for further information con-
tact our Customer Assistance Center at
1-800-FOR-MERCedes (1 ‑ 800 ‑ 367 ‑ 6372).
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and atOccupant safety 41
Safety Z

The seat belt system comprises: R
Seat belts R
Emergency Tensioning Devices for the front
seat belts and the outer seat belts in the rear R
Seat belt force limiters for the front seat belts
and the outer seat belts in the rear
If the seat belt is pulled out of the belt outlet
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be extrac-
ted any further.
The Emergency Tensioning Device tightens the
seat belt in an accident, pulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency Tensioning Device does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters for the front seats are
synchronized with the front air bags, which
absorb part of the deceleration force. This can
reduce the force exerted on the vehicle occu-
pants during an accident.
! If the front-passenger seat is not occupied,
do not engage the seat belt tongue in the
buckle on the front-passenger seat. Other-
wise, in the event of an accident, the Emer-
gency Tensioning Device and front-passenger
front air bag may be triggered and would need
to be replaced.
Important safety notes The use of seat belts and child restraint systems
is required by law in: R
all 50 states R
the U.S. territories R
the District of Columbia R
all Canadian provinces
Even where this is not required by law, all vehicle
occupants should correctly fasten their seat
belts before starting the journey.
G WARNING
If the seat belt is incorrectly fastened, it can-
not protect as intended. Furthermore, an
incorrectly fastened seat belt can cause addi-
tional injury, for example, in an accident, dur- ing braking or when abruptly changing direc-
tion. This poses an increased risk of injury or
even fatal injury.
Make sure that all vehicle occupants are
seated properly with a correctly fastened seat
belt.
G WARNING
The seat belt does not offer the intended level
of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
G WARNING
Persons under 5 ft (1.50 m) in height cannot
fasten the seat belt correctly without an addi-
tional suitable restraint system. If the seat
belt is incorrectly fastened, it cannot protect
as intended. Furthermore, an incorrectly fas-
tened seat belt can cause additional injury, for
example, in an accident, during braking or an
abrupt change of direction. This poses an
increased risk of injury or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) in height in suitable restraint
systems.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle: R
always secure the child in a child restraint
system suitable for this Mercedes-Benz vehi-
cle. The child restraint system must be appro-
priate to the age, weight and size of the child R
always observe the instructions and safety
notes on "Children in the vehicle"
( Y
page 58) in addition to the child restraintOccupant safety 43
Safety Z

system manufacturer's installation and oper-
ating instructions R
be sure to observe the instructions and safety
notes on the "Occupant classification system
(OCS)" ( Y
page 49)
G WARNING
The seat belts may not perform their intended
protective function if: R
they are damaged, modified, extremely
dirty, bleach or dyed R
the seat belt buckle is damaged or
extremely dirty R
the Emergency Tensioning Devices, belt
anchorages or inertia reels have been modi-
fied
Seat belts may sustain non-visible damage in
an accident, e.g. due to glass splinters. Modi-
fied or damaged seat belts may tear or fail,
e.g. in an accident. Modified Emergency Ten-
sioning Devices could accidentally trigger or
fail to deploy when necessary. This poses an
increased risk of injury or even fatal injury.
Never modify the seat belts, Emergency Ten-
sioning Devices, belt anchorages or inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean. Follow-
ing an accident, have the seat belts checked
immediately at a qualified specialist work-
shop.
Only use seat belts that have been approved for
your vehicle by Mercedes-Benz.
Proper use of the seat belts Pay attention to the safety notes about the seat
belt ( Y
page 43).
All vehicle occupants must fasten the seat belt
correctly before setting off. Make sure that all
occupants are wearing their seat belts correctly
for the entire journey.
When fastening the seat belt, make sure that: R
The seat belt tongue is inserted into the belt
buckle that belongs to the seat. R
The seat belt is tightened across your body.
Avoid wearing bulky clothing, e.g. a winter
coat. R
The seat belt is not twisted. Only then can the forces produced in the
event of an accident be evenly distributed
across the belt. R
The shoulder section of the belt must always
be routed across the center of the shoulder.
The shoulder section of the belt should not
come into contact with your neck and must
not be routed under the arm. Where possible,
adjust the seat belt to the appropriate height. R
The lap belt must be taut and as low as pos-
sible over your lap.
The lap belt must always pass across your hip
joints and never across your stomach or
abdomen. Pregnant women must take partic-
ular care. If necessary, the lap belt can be
pushed down across the hip joints and pulled
tight using the shoulder section. R
The seat belt is not routed over sharp, pointed
or fragile objects.
If these items are on or in your clothing, e.g.
eyeglasses, pens, keys, etc., stow these items
in a more suitable location. R
Only one person should use each seat belt at
any one time.
On no account should babies or children
travel sitting on the lap of another vehicle
occupant. During an accident, they could be
crushed between the occupant and seat belt. R
Objects are not secured with a seat belt if the
seat belt is being used by one of the vehicle’s
occupants.
Also make sure that there are no objects, e.g.
cushions, between the occupant and the seat.
Seat belts are solely intended for the protection
and restraint of the vehicle occupants. To
secure objects, luggage or loads, always
observe the "Loading guidelines" ( Y
page 251).
Fastening and adjusting the seat belts Observe the safety notes on the seat belt
( Y
page 43) and the notes on correct use of seat
belts ( Y
page 44).44
Occupant safety
Safety