key battery MERCEDES-BENZ CLA 2016 Owners Manual

ATA (Anti-Theft Alarm system)
Activating/deactivating .................. .7 3
Function ........................................... 73
Switching off the alarm .................... 73
ATTENTION ASSIST
Activating/deactivating ................ .2 20
Display message ............................ 246
Function/notes ............................ .2 03
Audio menu (on-board computer) .... 217
Audio system
see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 242
see Lights
Automatic car wash (care) .............. .3 02
Automatic engine start (ECO start/
stop function) ................................... .1 52
Automatic engine switch-off (ECO
start/stop function) .......................... 152
Automatic headlamp mode .............. 114
Automatic transmission
Accelerator pedal position ............. 161
Changing gear ............................... 161
DIRECT SELECT lever ..................... 157
Drive program ................................ 162
Drive program display .................... 157
Driving tips .................................... 161
DYNAMIC SELECT button (all vehi-
cles except Mercedes-AMG vehi-
cles) ............................................... 155
DYNAMIC SELECT controller
(Mercedes-AMG vehicles) .............. 156
Emergency running mode .............. 167
Engaging drive position .................. 159
Engaging neutral ............................ 158
Engaging park position
(Mercedes-AMG vehicles) .............. 160
Engaging park position automati-
cally ............................................... 158
Engaging reverse gear ................... 158
Engaging the park position ............ 157
Holding the vehicle stationary on
uphill gradients .............................. 161 Kickdown ....................................... 161
Manual shifting .............................. 164
Oil temperature (on-board com-
puter, Mercedes-AMG vehicl es) ..... 223
Overvi e
w ........................................ 157
Problem (malfunction) ................... 167
Pulling away ................................... 150
Selector lever ................................ 159
Starting the engine ........................ 149
Steering wheel paddle shifters ...... 164
Transmission position display ........ 159
Transmission position display
(DIRECT SELECT lever) ................... 157
Transmission positions .................. 160
Automatic transmission emer-
gency mode ....................................... 167
B Backup lamp
Display message ............................ 241
BAS (Brake Assist System) ................. 66
Battery (SmartKey)
Checking .......................................... 79
Important safety notes .................... 79
Replacing ......................................... 80
Battery (vehicle)
Charging ........................................ 317
Display message ............................ 244
Important safety notes .................. 315
Jump starting ................................. 319
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 220
Display message ............................ 247
Notes/function .............................. 205
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 234
Notes ............................................. 369
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Changing bulbs .............................. 123 Index 5

Seat heating problem .................... 106
Storing settings (memory func-
tion) ............................................... 110
Switching seat heating on/off ....... 105
Securing cargo .................................. 276
Selector lever
Cleaning ......................................... 307
Sensors (cleaning instructions) ....... 305
Service menu (on-board com-
puter) .................................................. 221
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 369
Coolant (engine) ............................ 369
Engine oil ....................................... 368
Fuel ................................................ 365
Important safety notes .................. 365
Refrigerant (air-conditioning sys-
tem) ............................................... 371
Washer fluid ................................... 370
Setting the air distribution ............... 138
Setting the airflow ............................ 138
Settings
Factory (on-board computer) ......... 223
On-board computer ....................... 221
SETUP (on-board computer) ............. 224
Side impact air bag ............................. 50
Side marker lamp (display mes-
sage) ................................................... 242
Side windows
Cleaning ......................................... 304
Convenience closing feature ............ 90
Convenience opening feature .......... 89
Important safety information ........... 88
Opening/closing .............................. 89
Problem (malfunction) ..................... 92
Resetting ......................................... 91
Reversing feature ............................. 88
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 80
Changing the programming ............. 78
Checking the battery ....................... 79
Convenience closing feature ............ 90 Convenience opening feature .......... 89
Display message ............................ 257
Door central locking/unlocking ....... 76
Important safety notes .................... 76
KEYLESS-GO start function .............. 78
Loss ................................................. 81
Mechanical key ................................ 78
Positions (ignition lock) ................. 147
Problem (malfunction) ..................... 81
Sta rti
ng the engine ........................ 149
SmartKey positions (ignition lock) .. 147
Snow chains ...................................... 331
Sockets
Center console .............................. 281
General notes ................................ 281
Rear compartment ......................... 281
Trunk ............................................. 281
Special seat belt retractor .................. 59
Specialist workshop ............................ 25
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 221
Digital ............................................ 215
In the Instrument cluster ................. 31
Segments ...................................... 210
Selecting the display unit ............... 221
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 70
Warning lamp ................................. 264
Standing lamps
Display message ............................ 241
Switching on/off ........................... 116
Start-off assist
Activating ....................................... 189
Important safety notes .................. 189
Start/Stop button
Removing ....................................... 148
Starting the engine ........................ 150
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 149
STEER CONTROL .................................. 72
Steering
Display message ............................ 25616
Index

No steering assistance is provided from
STEER CONTROL, if: R
ESP ®
is malfunctioning.R
the lighting is faulty.
If ESP ®
is malfunctioning, you will be assisted
further by the electrical power steering.
Protection against theft
Immobilizer The immobilizer prevents your vehicle from
being started without the correct SmartKey. X
To activate with the SmartKey: remove
the SmartKey from the ignition lock. X
To activate with KEYLESS-GO start-
function or KEYLESS-GO: switch the igni-
tion off and open the driver's door. X
To deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Any-
one can start the engine if a valid SmartKey
has been left inside the vehicle.
i The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be star-
ted (yet the vehicle's battery is charged),
the system is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada).
ATA (anti-theft alarm system) X
To arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp C flashes. The alarm sys-
tem is armed after approximately
15 seconds. X
To disarm: unlock the vehicle with the
SmartKey or KEYLESS-GO.
or X
Insert the SmartKey into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is armed and you open: R
a door R
the vehicle with the mechanical key R
the trunk lid R
the hood X
To turn the alarm off with the SmartKey:
press the 6 or 7 button on the
SmartKey.
The alarm is switched off.
or X
Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: remove the Start/
Stop button from the ignition lock
( Y
page 147). X
Insert the SmartKey into the ignition lock.
The alarm is switched off. X
To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The Smart-
Key must be outside the vehicle.
The alarm is switched off.
or X
Press the Start/Stop button on the dash-
board. The SmartKey must be inside the
vehicle.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
i If the alarm continues for more than
30 seconds, the mbrace emergency call
system automatically notifies the Cus-
tomer Assistance Center. This is done
either by text message or data connection.Protection against theft 73
Safety Z

Deactivating an d activatingIf you do no t intend to use th e vehicle fo r a
longer period of time, you can deactivat e KEY-
LESS-GO . The SmartKey will then use ver y lit -
tl e power, thereby conservin g battery power.
Fo r th e purposes of activation/deactivation ,
th e vehicle mus t no t be nearby.X
To deactivate : press th e 7 butto n on
th e SmartKey twic e in rapid succession .
The battery chec k lamp of th e SmartKey
flashes twic e briefly and lights up once ,
then KEYLESS-GO is deactivated
( Y
page 79) .X
To activate : press any butto n on th e
SmartKey.
or X
Inser t th e SmartKey into th e ignition lock.
KEYLESS-GO and all of it s associated fea-
tures are available again .
KEYLESS-G O star t function
General notes
Bear in min d that th e engin e can be started by
any of th e vehicle occupant s if there is a
SmartKey in th e vehicle.
Changin g th e settings of th e locking
syste m
You can chang e th e setting s of th e locking
system. Thi s means that only th e driver's doo r
and th e fue l filler flap are unlocke d when th e
vehicle is unlocked. Thi s is useful if you fre-
quentl y trave l on your own .X
To change th e setting: press and hol d th e
6 and 7 buttons simultaneousl y fo r approximately six seconds until th e battery
indicator lamp flashes twic e ( Y
page 79) .
If th e setting of th e locking system is changed
within th e signal range of th e vehicle, press-
in g th e 7 or 6 button: R
locks or R
unlocks th e vehicle
The SmartKey no w function s as follows :X
To unlock : press th e 6 butto n once .X
To unlock centrally : press th e 6 but -
to n twice. X
To lock centrally : press th e 7 button.
The KEYLESS-GO function is changed as fol-
lows : X
To unlock th e driver's door: touch th e
inne r surfac e of th e doo r handle on th e
driver's door. X
To unlock centrally : touch th e inne r sur -
fac e of th e doo r handle on th e front-
passenger doo r or th e rea r door.X
To lock centrally : touch th e outer sensor
surfac e on on e of th e doo r handles .X
To restor e th e factory settings: press
and hol d th e 6 and 7 buttons simul-
taneousl y fo r approximately six seconds
until th e battery chec k lamp flashes twic e
( Y
page 79).
Mechanica l key
General notes
If th e vehicle can no longer be locke d or
unlocke d wit h th e SmartKey or KEYLESS-GO ,
use th e mechanical key.
If you use th e mechanical ke y to unloc k and
ope n th e driver's doo r or th e trunk lid, th e
anti-thef t alar m system will be triggere d
( Y
page 73).
There are severa l ways to turn of f th e alarm:X
To deactivate th e alarm wit h th e key :
press th e 6 or 7 butto n on th e key.
or78
SmartKey
Opening and closing

X
Insert the SmartKey into the ignition lock.
or X
To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or X
Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically. X
To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
X
Push release catch C in the direction of
the arrow and at the same time remove
mechanical key D from the SmartKey.
For further information about: R
unlocking the driver's door ( Y
page 85)R
unlocking the trunk ( Y
page 87)R
locking the vehicle ( Y
page 85)
Inserting the mechanical key X
Push mechanical key D completely into
the SmartKey until it engages and release
catch C is back in its basic position. SmartKey battery
Important safety notes
G WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
The SmartKey batteries 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 .
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery
X
Press the 7 or 6 button.
The battery is working properly if battery
check lamp C lights up briefly.
The battery is discharged if battery check
lamp C does not light up briefly. X
Change the battery ( Y
page 80).SmartKey 79
Opening and closing Z

i If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the 7 or 6 button:R
locks or R
unlocks the vehicle
i You can get a battery at any qualified spe-
cialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery. X
Take the mechanical key out of the Smart-
Key ( Y
page 78).
X
Press mechanical key D into the opening
in the SmartKey in the direction of the
arrow until battery tray cover C opens.
When doing so, do not hold cover C shut.X
Remove battery tray cover C .
X
Repeatedly tap the SmartKey against your
palm until battery

Problems with the SmartKey Problem
Possible causes/consequences and P Solutions
You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged. X
Vehicles without KEYLESS-GO or KEYLESS-GO start func-
tion: try again to lock/unlock the vehicle using the remote con-
trol function of the SmartKey. Point the tip of the key at the
driver's door handle from close range and press the 6 or
7 button.
If this does not work: X
Check the SmartKey battery ( Y
page 79) and replace it if nec-
essary ( Y
page 80). X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves. X
Vehicles without KEYLESS-GO or KEYLESS-GO start func-
tion: try again to lock/unlock the vehicle using the remote con-
trol function of the SmartKey. Point the tip of the key at the
driver's door handle from close range and press the 6 or
7 button.
If this does not work: X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key.
The SmartKey is faulty. X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key. X
Have the SmartKey checked at a qualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO. The SmartKey battery is discharged or nearly discharged. X
Check the SmartKey battery ( Y
page 79) and replace it if nec-
essary ( Y
page 80).
If this does not work: X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves. X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key. SmartKey 81
Opening and closing Z

Problem
Possible causes/consequences and P Solutions
KEYLESS-GO is malfunctioning. X
Lock/unlock the vehicle using the remote control function of
the SmartKey. X
Have the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote
control function: X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key. X
Have the vehicle and SmartKey checked at a qualified specialist
workshop.
The engine cannot be
started using the
SmartKey. the on-board voltage is too low. X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work: X
Check the starter battery and charge it if necessary
( Y
page 317).
or X
Jump-start the vehicle ( Y
page 319).
or X
Consult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
cle. The vehicle is locked. X
Unlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged. X
Check the SmartKey battery ( Y
page 79) and replace it if nec-
essary ( Y
page 80).
If this does not work: X
Start your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves. X
Start your vehicle with the SmartKey in the ignition lock.82
SmartKey
Opening and closing

Problem
Possible causes/consequences and P Solutions
You have lost a Smart-
Key. X
Have the SmartKey deactivated at a qualified specialist work-
shop. X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well.
You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well.
Doors
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could: R
open the doors, thus endangering other
people or road users. R
get out and disrupt traffic. R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake. R
shifting the automatic transmission out of
park position PR
Start the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
You should preferably place luggage or loads
in the cargo compartment. Observe the load-
ing guidelines ( Y
page 272).
Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side win-
dows have iced up. It will then not be pos- sible to close the door. Do not attempt to
force the door closed. You could otherwise
damage the door or the side window.
When a door is opened, the side window on
that side opens slightly. When the door is
closed, the side window closes again.
X
To unlock and open a front door: pull
door handle D .
If the door is locked, locking knob C pops
up. The door is unlocked and opens. X
To unlock a rear door: pull up locking
knob C .
The door is unlocked and can be opened. X
To open a rear door: pull door handle D .
You can open a door from inside the vehicle
even if it has been locked. You can only open
the rear doors from inside the vehicle if they
are not secured by the child-proof locks
( Y
page 64).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a
door from the inside will trigger the anti-theft Doors 83
Opening and closing Z

X
Fold the rear seat backrest forwards
( Y
page 276). X
Insert a suitable tool D , e.g. a screwdriver,
into opening C in the paneling.
The trunk lid is released. X
Open the trunk lid.
Emergency release buttonYou can open the trunk lid from inside the
vehicle with the emergency release button.
X
Press emergency release button C briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
The trunk lid emergency release does not
open the trunk lid if the battery is disconnec-
ted or discharged.
Trunk lid emergency release light: R
Emergency release button C flashes for
30 minutes after the trunk lid is opened. R
Emergency release button C flashes for
60 minutes after the trunk lid is closed.
Side windows
Important safety notes
G WARNING
While opening the side windows, body parts
could become trapped between the side win- dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or
pull the switch to close the side window again.
G WARNING
While closing the side windows, body parts in
the closing area could become trapped. There
is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again.
G WARNING
If children operate the side windows they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the SmartKey with you and lock the vehi-
cle. Never leave children unsupervised in the
vehicle.
Side window reversing feature
The side windows are equipped with an auto-
matic reversing feature. If a solid object
blocks or restricts a side window from trav-
eling upwards during the automatic closing
process, the side window opens again auto-
matically. During the manual closing process,
the side window only opens again automati-
cally after the corresponding switch is
released. The automatic reversing feature is
only an aid and is no substitute for your atten-
tion when closing a side window.
G WARNING
The reversing feature does not react: R
to soft, light and thin objects, e.g. small fin-
gers R
while resetting88
Side windows
Opening and closing