2017 MERCEDES-BENZ CLA-Class lock

Removingth etowin geye .............. .277
Towing a trailer
ESP
®(Electronic Stability Pro-
gram) ............................................... 66
Towing away
Important safety guidelines ........... 276
Installing the towing eye ................ 277
Notes for 4MATIC vehicles ............ 279
Removing the towing eye ...............2 77
Transporting the vehicle ................ 278
With both axles on the ground ....... 278
With front axle raised ..................... 277
Towing eye ......................................... 266
Traffic reports
see also Digital Operator's Man-
ual ..................................................2 27
Transmission
see Automatic transmission
Transmission position display
(DIRECT SELECT lever) ......................129
Transporting the vehicle .................. 278
Trim pieces (cleaning instruc-
tions) ..................................................2 64
Trip computer (on-board com-
puter) ..................................................1 77
Trip odometer
Calling up ....................................... 177
Resetting (on-board computer) ...... 178
Trunk
Emergency release .......................... 80
Emergency release button ...............8 0
Important safety notes .................... 77
Opening (automatically from out-
side) .................................................7 8
Opening (from outside the vehi-
cle, HANDS-FREE ACCESS) .............. 78
Opening automatically from
inside ............................................... 79
Opening/closing (manually from
outside) ............................................ 77
Trunk emergency release button .......80
Trunk lid
Display message ............................ 213
Opening dimensions ...................... 314
Trunk load (maximum) ...................... 314
Turn signals
Display message ............................ 199 Replacing bulbs (front) ................... 105
Swi
tching o
n/off ........................... 100
Two-way radio
Frequencies ................................... 307
Installation ..................................... 307
Transmission output (maximum) .... 307
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 76
From inside the vehicle (central
unlocking button) ............................. 75
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 185
USB devices
Connecting to the Media Inter-
face ............................................... 232
V
Vanity mirror (in the sun visor) ........ 240
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 211
Equipment ....................................... 24
Individual settings .......................... 183
Limited Warranty ............................. 28
Loading .......................................... 292
Locking (in an emergency) ............... 76
Locking (SmartKey) .......................... 69
Lowering ........................................ 305
Maintenance .................................... 25
Parking for a long period ................ 142
Pulling away ................................... 124
Raising ........................................... 303
Reporting problems .........................2 7
Securing from rolling away ............ 302
Transporting .................................. 278
Unlocking (in an emergency) ........... 76
Unlocking (SmartKey) ...................... 69
Vehicle data ................................... 314
Vehicle data
Roof load (maximum) ..................... 314
Trunk load (maximum) ................... 314
20Index

Vehicle dimensions........................... 314
Vehicle emergency locking ................ 76
Vehicle identification number
see VIN
Vehicle identification plate .............. 308
Vehicle tool kit .................................. 266
Ventilation
Setting the vents ........................... 119
Video
Operating the DVD ......................... 180
see also Digital Operator's Man-
ual .................................................. 227
VIN
Seat ............................................... 309
Type plate ...................................... 308
W
Warning and indicator lampsABS ................................................ 218
Active Brake Assist ........................ 225
Brakes ........................................... 217
Check Engine ................................. 222
Coolant .......................................... 223
Distance warning ........................... 225
ESP
®.............................................. 219
ESP®OFF ....................................... 220
Fuel tank ........................................ 222
Overview .......................................... 32
PASSENGER AIR BAG ...................... 40
Reserve fuel ................................... 222
Restraint system ............................ 222
Seat belt ........................................ 216
SPORT handling mode ................... 220
Tire pressure monitor .................... 226
Warranty .............................................. 24
Washer fluid
Display message ............................ 214
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 227
Wheel and tire combinations
Tires ............................................... 306
Wheel bolt tightening torque ........... 305
Wheel chock ...................................... 302
Wheels
Changing a wheel .......................... 301
Checking ........................................ 282 Cleaning ......................................... 261
Important safety notes .................. 282
Information on driving .................... 282
Interchanging/changing ................ 301
Mounting a new wheel ................... 304
Removing a wheel .......................... 304
Storing ........................................... 302
Tightening torque ........................... 305
Wheel size/tire size ....................... 306
Window curtain air bag
Display message ............................ 196
Operation ......................................... 46
Windows
see Side windows
Windshield
Defrosting ...................................... 116
Windshield washer system
Adding washer fluid ....................... 257
Important safety notes .................. 313
Windshield wipers
Display message ............................ 214
Problem (malfunction) ................... 108
Replacing the wiper blades ............ 107
Switching on/off ........................... 106
Winter driving
Slippery road surfaces ................... 147
Snow chains .................................. 285
Winter operation
General notes ................................ 284
Winter tires
M+S tires ....................................... 284
Wiper blades
Cleaning ......................................... 262
Imp

ortant safety notes .................. 107
Wooden trim (cleaning instruc-
tions) .................................................. 264
Workshop
see Qualified specialist workshop
Z
ZONE functionSwitching on/off ........................... 116
Index21

Cockpit
FunctionPage
:Steering wheel paddle shift-
ers135
;Combination switch100
=Instrument cluster32
?Horn
ADIRECT SELECT lever129
BParking Assist PARKTRONIC
warning display161
COverhead control panel38
FunctionPage
DClimate control systems109
EIgnition lock121
FAdjusts the steering wheel94
GCruise control lever148
HElectric parking brake141
ILight switch99
JDiagnostics connection27
KOpens the hood254
Cockpit31
At a glance

Door controlpanel
FunctionPage
:Opens th edoo r75
;%&Unlocks/locks
the vehicle75
=r45= Saves
the seat and exterior mirror
settings
97
?Adjusts the seats electrically91
A7 Zö\
Adjusts and folds the exterior
mirrors in/out electrically
95
FunctionPage
BW Opens/closes the side
windows81
Cn Activates/deactivates
the override feature for the
side windows in the rear
compartment
59
Dq Opens the trunk79
Door control panel37
At a glance

Panic alarm
XTo activate:press and hold the
! button :for approx. one second.
A visual and audible alarm is triggered if the
alarm system is armed.
XTo deactivate: press!button :again.
or
XInsert the SmartKey into the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑GO
XPress 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:
Rseat belt system
Rair bags
Rchild restraint system
Rchild 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:
Rhave fastened their seat belts correctly
(Ypage 42)
Rhave adjusted their seat and head restraint
properly (Ypage 89). 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 (
Ypage 89).
You also have to make sure that an air bag can
inflate properly if deployed (
Ypage 44).
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" (
Ypage 51).
For information on children traveling with you in
the vehicle and on child restraint systems, see
"Children in the vehicle" (
Ypage 53).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of 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 safety39
Safety
Z

occupant in the best position in relation to the
air bag.
The seat belt system comprises:
RSeat belts
REmergency Tensioning Devices for the front
seat belts and the outer seat belts in the rear
RSeat 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 unoccupied,
do not insert the belt tongue into the buckle of
the front-passenger seat. This may otherwise
lead to the triggering of the Emergency Ten-
sioning Device in the event of an accident,
which will then need to be replaced.
Important safety notes
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehicle
occupants should correctly fasten their seat
belts before starting the journey.
GWARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sit-
ting properly.
GWARNING
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.
GWARNING
Persons less than 5 ft (1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) tall in suitable additional restraint
systems.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle:
Ralways 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
Ralways observe the instructions and safety
notes on "Children in the vehicle"
(
Ypage 53) in addition to the child restraint
Occupant safety41
Safety
Z

Requirements
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their back
against the seat backrest
Rwith their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on a vehicle armrest
Rsits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. The entire base of the child restraint
system must always rest on the seat cushion of
the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's instal
lation and operating
instructions.
Operation of Occupant Classification
System (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice, or
turn the SmartKey to position 1or 2in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
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.
If the status of the front-passenger front air bag
changes while the vehicle is in motion, an air bag
display message appears in the instrument clus-
ter (
Ypage 197). When the front-passenger
seat is occupied, always pay attention to the
PASSENGER AIR BAG OFF i
ndicator lamp. Be
aware of the status of the front-passenger front air bag both before and during the journey.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is
disabled. It will not be deployed in the event of
an accident and cannot perform its intended
protective function. A person in the front-
passenger seat could then, for example, come
into contact with the vehicle's interior, espe-
cially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
Rthe classification of the person in the front- passenger seat is correct and the front-
Occupant safety47
Safety
Z

and to have any malfunctioning air bags
repaired. This will help to make sure the air bags
continue to perform their protective function for
the vehicle occupants in the event of a crash.
GWARNING
Emergency Tensioning Devices that have
deployed pyrotechnically are no longer opera-
tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Have pyrotechnically triggered Emergency
Tensioning Devices replaced immediately at a
qualified specialist workshop.
If Emergency Tensioning Devices are triggered
or air bags are deployed, you will hear a bang,
and a small amount of powder may also be
released. The 6restraint system warning
lamp lights up.
Only in rare cases will the bang affect your hear-
ing. The powder that is released generally does
not constitute a health hazard, but it may cause
short-term breathing difficulties in people with
asthma or other respiratory problems. Provided
it is safe to do so, you should leave the vehicle
immediately or open the window in order to pre-
vent breathing difficulties.
Air bags and pyrotechnic Emergency Tensioning
Devices (ETDs) contain perchlorate material,
which may require special handling and regard
for the environment. National guidelines must
be observed during disposal. In California, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm .
Method of operation
During the first stage of a collision, the restraint
system control unit evaluates important physi-
cal data relating to vehicle deceleration or accel-
eration, such as:
Rduration
Rdirection
Rintensity
Based on the evaluation of this data, the
restraint system control unit triggers the Emer-
gency Tensioning Devices during a frontal or
rear collision. An Emergency Tensioning Device can only be
triggered, if:
Rthe ignition is switched on
Rthe components of the restraint system are
operational. You can find further information
under: "Restraint system warning lamp"
(
Ypage 40)
Rthe seat belt buckle tongue has engaged in
the belt buckle of the respective front seat
The Emergency Tensioning Devices in the rear
compartment are triggered independently of the
lock status of the seat belts.
If the restraint system control unit detects a
more severe accident, further components of
the restraint system are activated independ-
ently of each other in certain frontal collision
situations:
RFront air bags as well as driver's and front-
passenger knee bags
RWindow curtain air bag, if the system deter-
mines that deployment can offer additional
protection to that provided by the seat belt
The front-passenger front air bag is activated or
deactiv ated dependin

g on the person on the
front-passenger seat. The front-passenger front
air bag can only deploy in an accident if the
PASSENGER AIR BAG OFF indicator lamp is off.
Observe the information on the PASSENGER AIR
BAG indicator lamps (
Ypage 40).
Your vehicle has two-stage front air bags. During
the first deployment stage, the front air bag is
filled with propellant gas to reduce the risk of
injuries. The front air bag is fully deployed with
the maximum amount of propellant gas if a sec- ond deployment threshold is reached within a
few milliseconds.
The activation threshold of the Emergency Ten-
sioning Devices and the air bag are determined
by evaluating the rate of vehicle deceleration or
acceleration which occurs at various points in
the vehicle. This process is pre-emptive in
nature. Deployment should take place in good
time at the start of the collision.
The rate of vehicle deceleration or acceleration
and the direction of the force are essentially
determined by:
Rthe distribution of forces during the collision
Rthe collision angle
Rthe deformation characteristics of the vehicle
Rthe characteristics of the object with which
the vehicle has collided
52Occupant safety
Safety