2017 MERCEDES-BENZ CLA roof

Protecting the environment
General notes
H Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected
by these factors: R
operating conditions of your vehicle R
your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions: R
avoid short trips as these increase fuel con-
sumption. R
always make sure that the tire pressures
are correct. R
do not carry any unnecessary weight. R
remove roof racks once you no longer need
them. R
a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals. R
always have service work carried out at a
qualified specialist workshop.
Personal driving style: R
do not depress the accelerator pedal when
starting the engine. R
do not warm up the engine when the vehicle
is stationary. R
drive carefully and maintain a safe distance
from the vehicle in front. R
avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to

You should only use seat covers that have
been approved for the respective seat by
Mercedes-Benz.
Front side impact air bags C and rear side
impact air bags D deploy next to the outer bol-
ster of the seat backrest.
When deployed, the side impact air bag offers
additional thorax protection. It also offers addi-
tional pelvis protection for occupants in the
front seats. However, it does not protect the: R
head R
neck R
arms
In the event of a side impact, the side impact air
bag is deployed on the side on which the impact
occurs.
The side impact air bag on the front-passenger
side deploys under the following conditions: R
the OCS system detects that the front-
passenger seat is occupied or R
the seat belt buckle tongue is engaged in the
belt buckle of the front-passenger seat
If the belt tongue is engaged in the belt buckle,
the side impact air bag on the front-passenger
side deploys if an appropriate accident situation
occurs. In this case, deployment is independent
of whether the front-passenger seat is occupied
or not. Window curtain air bags
Window curtain air bags C are integrated into
the side of the roof frame and deployed in the
area from the A-pillar to the C-pillar.
When deployed, the window curtain air bag
enhances the level of protection for the head.
However, it does not protect the chest or arms.
In the event of a side impact, the window curtain
air bag is deployed on the side on which the
impact occurs.
If the system determines that they can offer
additional protection to that provided by the
seat belt, a window curtain air bag may be
deployed in other accident situations
( Y
page 51).
Occupant Classification System
(OCS)
Introduction The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag and front-passenger knee bag are
either enabled or deactivated.
The system does not deactivate: R
the side impact air bag R
the window curtain air bag R
the Emergency Tensioning Devices46
Occupant safety
Safety

Requirements To be classified correctly, the front passenger
must sit: R
with the seat belt fastened correctly R
in an almost upright position with their back
against the seat backrest R
with 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: R
transfers their weight by supporting them-
selves on a vehicle armrest R
sits 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
i
nstructions.
Operation of Occupant Classification
System (OCS)
C
PASSENGER AIR BAG ON indicator lamp
D
PASSENGER AIR BAG OFF indicator lamp The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled. X
Press the Start/Stop button once or twice, or
turn the SmartKey to position 1 or 2 in 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. R
PASSENGER 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. R
PASSENGER 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 ( Y
page 197). When the front-passenger
seat is occupied, always pay attention to the
PASSENGER AIR BAG OFF i nd
icator lamp. Be
aware of the status of the front-passenger front
air bag both before and during the journey.
G WARNING
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: R
the classification of the person in the front-
passenger seat is correct and the front-Occupant safety 47
Safety Z

Rearward-facing child restraint system If it is absolutely necessary to install a rearward-
facing child restraint system on the front-
passenger seat, always make sure that the
front-passenger front air bag is deactivated.
Only if the PASSENGER AIR BAG OFF indicator
lamp is permanently lit ( Y
page 40) is the front-
passenger front air bag deactivated.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system If it is absolutely necessary to install a forward-
facing child restraint system on the front-
passenger seat, always move the front-
passenger seat as far back as possible. Fully
retract the seat cushion length. The entire base
of the child restraint system must always rest on
the seat cushion of the front-passenger seat.
The backrest of the 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. Always make sure that the shoul-
der belt strap is correctly routed from the vehi-
cle belt outlet to the shoulder belt guide on the
child restraint system. The shoulder belt strap
must be routed forwards and downwards from
the vehicle belt outlet. If necessary, adjust the
vehicle belt outlet and the front-passenger seat
accordingly.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions. Child-proof locks
Important safety notes
G WARNING
If children are traveling in the vehicle, they
could: R
open doors, thus endangering other people
or road users R
exit the vehicle and be caught by oncoming
traffic R
operate vehicle equipment and become
trapped
There is a risk of an accident and injury.
Always activate the child-proof locks and
override feature if children are traveling in the
vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
Override feature for: R
the rear doors ( Y
page 59)R
the rear side windows ( Y
page 59)
G WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example: R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.58
Children in the vehicle
Safety

G WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro-
tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Child-proof locks for the rear doors
You secure each door individually with the child-
proof locks on the rear doors. A door secured
with a child-proof lock cannot be opened from
inside the vehicle. When the vehicle is unlocked,
the door can be opened from the outside. X
To activate: press the child-proof lock lever
up in the direction of arrow C .X
Make sure that the child-proof locks are work-
ing properly. X
To deactivate: press the child-proof lock
lever down in the direction of arrow D . Override feature for the rear side win-
dows X
To activate/deactivate: press button C .
If indicator lamp D is lit, operation of the rear
side windows is disabled. Operation is only
possible using the switches in the driver's
door. If indicator lamp D is off, operation is
possible using the switches in the rear com-
partment.
Pets in the vehicle
G WARNING
If you leave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As a result, they could: R
activate vehicle equipment and become
trapped, for example R
activate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sud-
den steering or braking, thereby injuring vehi-
cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.Pets in the vehicle 59
Safety Z

Door s
Important safet y notes
G WARNING
If children are lef t unsupervised in th e vehicle,
they could: R
ope n th e doors , thus endangerin g other
people or road users. R
get out and disrup t traffic .R
operat e th e vehicle' s equipment.
Additionally, children could set th e vehicle in
motion if, fo r example, they:R
release th e parking brake .R
shiftin g th e automatic transmissio n out of
par k position PR
Start th e engine.
There is a ris k of an acciden t and injury.
Whe n leavin g th e vehicle, always take th e
SmartKey wit h you and loc k th e vehicle. Never
leav e children or animals unattended in th e
vehicle. Always keep th e SmartKey out of
reach of children .
You should preferably plac e luggage or load s in
th e cargo compartment. Observ e th e loadin g
guidelines ( Y
page 233).
Unlockin g an d opening doors from
th e inside
! The sid e windows will no t open/close if th e
battery is discharged or if th e sid e windows
hav e iced up. It will then no t be possible to
close th e door. Do no t attempt to forc e th e
doo r closed. You could otherwise damage th e
doo r or th e sid e window.
Whe n a doo r is opened, th e sid e window on that
sid e opens slightly. Whe n th e doo r is closed, th e
sid e window close s again . X
To unlock an d ope n a front door: pull doo r
handle D .
If th e doo r is locked, locking knob C pop s up.
The doo r is unlocke d and opens .X
To unlock a rear door: pull up locking
knob C .
The doo r is unlocke d and can be opened.X
To ope n a rear door: pull doo r handle D .
You can ope n a doo r from insid e th e vehicle
eve n if it has bee n locked. You can only ope n th e
rea r doors from insid e th e vehicle if they are no t
secure d by th e child-proof locks ( Y
page 59).
If th e vehicle has previously bee n locke d wit h
th e SmartKey from th e outside, opening a doo r
from th e insid e will trigger th e anti-thef t alar m
system. Switc h of f th e alar m ( Y
page 67).
Centrally locking an d unlocking th e
vehicle from th e insideYou can centrall y loc k or unloc k th e vehicle from
th e inside. Thi s can be useful if you wish to loc k
th e vehicle befor e pulling away, fo r example.
X
To unlock : press butto n C .X
To lock : press butto n D .
If all th e doors and th e trunk lid are closed, th e
vehicle locks .Doors 75
Opening and closing Z

Meanwhile, the fuel filler flap will not be locked
or unlocked.
You cannot unlock the vehicle centrally from the
inside if the vehicle has been locked with the
SmartKey or KEYLESS-GO.
You can open a door from inside the vehicle
even if it has been locked. You can open the rear
doors from inside the vehicle unless they are
secured by the child-proof lock ( Y
page 59).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a door
from the inside will trigger the anti-theft alarm
system. Switch off the alarm ( Y
page 67).
If a locked door is opened from the inside, the
previous unlock status of the vehicle will be
taken into consideration if: R
the vehicle was locked using the locking but-
ton for the central locking, or R
if the vehicle was locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. If only the driver's
door had been previously unlocked, only the
door which has been opened from the inside is
unlocked.
Automatic locking feature
X
To deactivate: press and hold button C for
approximately five seconds until a tone
sounds. X
To activate: press and hold button D for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing. You could therefore lock yourself out if: R
the vehicle is being pushed. R
the vehicle is being towed. R
the vehicle is on a roller dynamometer.
You can also switch the automatic locking func-
tion on and off using the on-board computer
( Y
page 184).
Unlocking the driver's door (mechan-
ical key) If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm sys-
tem will be triggered ( Y
page 67).X
Take the mechanical key out of the SmartKey
( Y
page 71). X
Insert the mechanical key into the lock of the
driver's door as far as it will go.
X
Turn the mechanical key counter-clockwise
as far as it will go to position G .
The door is unlocked. X
Turn the mechanical key back and remove it. X
Insert mechanical key into the SmartKey
( Y
page 71).
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechanical
key. X
Open the driver's door. X
Close the front-passenger door, the rear
doors and the trunk lid.76
Doors
Opening and closing

active for five minutes or until the driver's or
front-passenger door is opened.
i When the override feature for the side win-
dows is activated ( Y
page 59), the side win-
dows cannot be operated from the rear.
Convenience opening Vehicles with KEYLESS-GO, the KEYLESS-
GO start function, Exclusive package or
AMG Exclusive package: you can ventilate the
vehicle before you start driving.
The SmartKey can also be used to carry out the
following functions simultaneously: R
unlock the vehicle R
open the side windows R
open the panorama roof with power tilt/slid-
ing panel and the roller sunblind
The convenience opening feature can only be
operated using the SmartKey.
The "convenience opening" feature is also avail-
able when the vehicle is unlocked. X
Vehicles with Exclusive package or AMG
Exclusive package but without KEYLESS-
GO and the KEYLESS-GO start function: for
the following operations, point the tip of the
SmartKey at the door handle on the driver's
door. The SmartKey must be close to the driv-
er's door handle.
i Vehicles with KEYLESS-GO or the KEY-
LESS-GO start function: the SmartKey must
be in close proximity to the vehicle. X
Press and hold the 6 button until the side
windows and the panorama sunroof are in the
desired position.
If the roller sunblind of the panorama roof
with power tilt/sliding panel is closed, the
roller sunblind is opened first. X
Press and hold the 6 button once more
until the panorama roof with power tilt/slid-
ing panel reaches the desired position. X
To interrupt convenience open ing: release
the 6 button. Convenience closing feature
Important safety notes
G WARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
Vehicles with KEYLESS-GO, the KEYLESS-
GO start function, Exclusive Package or
AMG Exclusive Package: at the same time you
can: R
lock the vehicle R
close the side windows R
close the panorama roof with power tilt/slid-
ing panel
On vehicles with a panorama roof with power
tilt/sliding panel, you can then close the roller
sunblind.
i Notes on the automatic reversing feature
for: R
the side window ( Y
page 81)R
the panorama roof with power tilt/sliding
panel ( Y
page 85) R
the roller sunblind ( Y
page 86)
Using the SmartKey X
Vehicles with Exclusive package or AMG
Exclusive package but without KEYLESS-
GO and the KEYLESS-GO start function: for
the following operations, point the tip of the
SmartKey at the door handle on the driver's
door. The SmartKey must be close to the driv-
er's door handle.
i Vehicles with KEYLESS-GO or the KEY-
LESS-GO start function: the SmartKey must
be in close proximity to the vehicle. X
Press and hold the 7 button until the side
windows and the panorama roof with power
tilt/sliding panel are fully closed. X
Make sure that all the side windows and the
panorama roof with power tilt/sliding panel
are closed.82
Side windows
Opening and closing