2015 MERCEDES-BENZ CLA SHOOTING BRAKE key battery

Activating/deactivating (on the
centre console) .............................. 157
Remote contro l.............................. 157
Axle load, permissible (trailer tow-
ing) ...................................................... 412 B
Bag hook ............................................ 321
Ball coupling
Folding in ....................................... 241
Folding out ..................................... 240
BAS (Brake Assist System) ................. 73
Battery (key)
Checking .......................................... 90
Important safety notes .................... 89
Replacing ......................................... 90
Battery (vehicle)
Charging ........................................ 359
Display message ............................ 284
Important safety notes .................. 356
Jump starting ................................. 360
Belt
see Seat belts
Belt tensioner
Activation ......................................... 57
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 257
Display message ............................ 288
Notes/function .............................. 234
Trailer towing ................................. 236
Bonnet
Active bonnet (pedestrian protec-tion) ............................................... 334
Closing ........................................... 336
Display message ............................ 297
Important safety notes .................. 334
Opening ......................................... 335
Boot lid
see Tailgate
Boot load (maximum) ........................ 410
Brake
EBD .................................................. 80
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 273 Notes ............................................. 408
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 76
Changing bulb s.............................. 137
Display message ............................ 280
Brakes
ABS .................................................. 73
Adaptive Brake Assist ...................... 75
BAS .................................................. 73
Brake fluid (notes) ......................... 408
Display message ............................ 266
Driving tips .................................... 197
Hill start assist ............................... 169
HOLD function ............................... 211
Important safety notes .................. 197
Parking brake ................................ 193
Warning lamp ................................. 303
Breakdown
Where will I find...? ........................ 350
see Flat tyre
see Tow-starting
see Towing away
Brightness control (instrument
cluster lighting) ................................... 32
Buttons on the steering column ...... 247 C
Calling up a fault see Display messages
Car
see Vehicle
Car wash (care) ................................. 341
Care
Automatic car wash ....................... 341
Carpets .......................................... 347
Display ........................................... 346
Exhaust pipe .................................. 345
Exterior lighting ............................. 344
Gear or selector lever .................... 346
High-pressure cleaner .................... 342
Interior ........................................... 346
Matt paintwork .............................. 342
Note s............................................. 340
Paint .............................................. 342 6
Index

G
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 262
Gearshift program
SETUP (on-board computer) .......... 262
Genuine Mercedes-Benz parts ...........22
Glove compartment ..........................317 H
Hazard warning lamps Display message ............................ 300
Switching on/off ........................... 129
Head restraints
Adjusting ....................................... 115
Adjusting (manually) ..................... .115
Adjusting (rear) .............................. 116
Fitting/removing (rear) .................. 116
Headlamp
Cleaning system (function) ............ 129
Cleaning system (notes) ................ 409
Headlamp flasher .............................. 129
Headlamps
Misting up ...................................... 132
Topping up the cleaning system .... 339
see Automatic headlamp mode
Heating
see Climate control
High-pressure cleaners .................... 342
Hill start assist .................................. 169
HOLD function
Activating ....................................... 212
Deactivating ................................... 212
Display message ............................ 287
Function/notes ............................ .211
Horn ...................................................... 30 I
Ignition lock see Key positions
Immobiliser .......................................... 80
Indicator and warning lamp
Restraint system ............................ 309
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 312
Coolant .......................................... 310 Engine diagnostics ......................... 310
SPORT handling mode ................... 307
Indicator lamps
Display message ............................ 280
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 32
Settings ......................................... 258
Warning and indicator lamps ........... 33
Instrument cluster lighting .............. 246
Intelligent Light System
Activating/deactivating ................. 259
Display message ............................ 282
Overview ........................................ 130
Setting the dipped-beam head-
lamps for driving on the right/left .. 259
Interior lighting
Control .......................................... .133
Emergency lighting ........................ 133
Overview ........................................ 132
Reading lamp ................................. 132
Interior motion sensor
Deactivating ..................................... 83
Function .......................................... .82
Priming ............................................ 82
Switching off .................................... 83
ISOFIX child seat securing system ....61 J
Jack Storage location ............................3 51
Using ............................................. 381
Jump starting (engine) ......................360 K
Key Changing the battery ....................... 90
Checking the battery ....................... 90
Convenience closing feature .......... 103
Convenience opening feature ....... .102
Display message ............................ 300
Door central locking/unlocking ....... 87
Emergency key element ................... 89
Important safety notes .................... 86 12
Index

R
when the external door handles are
touched
R during convenience closing X
To unlock the vehicle: touch the inner
surface of the door handle.
X To lock the vehicle: touch sensor sur-
face :or;.
Make sure that you do not touch the inner
surface of the door handle.
X Convenience closing feature: touch
recessed sensor surface ;for an exten-
ded period.
For further information on the convenience closing feature (Y page 103).X
To unlock the tailgate: pull tailgate han-
dle :.
Deactivating and activating If you do not intend to use the vehicle for an
extended period of time, you can deactivate
KEYLESS-GO. The key will then use very little power, thereby conserving battery power. For the purposes of activation or deactivation,
the vehicle does not have to be nearby.
X To deactivate: press the&button on
the key twice in rapid succession.
The battery check lamp of the key flashes
twice briefly and lights up once, then KEY-
LESS-GO is deactivated (Y page 90).
X To activate: press any button on the key.
or
X Insert the key into the ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again. KEYLESS-GO start function
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a key
in the vehicle. Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel alone.
X To change the setting: press and hold
down the %and& buttons simulta-
neously for about six seconds until the bat-
tery indicator lamp flashes twice
(Y page 90).
If the setting of the locking system is changed
within the signal range of the vehicle, press-
ing the &or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock: press the%button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button. 88
KeyOpening and closing

The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press
and hold down the %and& buttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (Y page 90). Emergency key element
General notes If the vehicle can no longer be unlocked with
the key or KEYLESS-GO, use the emergency
key element.
If you use the emergency key element to
unlock and open the driver's door or the tail-
gate, the anti-theft alarm system will be trig-
gered (Y page 81).
There are several ways to deactivate the
alarm:
X To deactivate the alarm with the key:
press the %or& button on the key.
or X Insert the key into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically. X
To unlock the fuel filler flap: insert the
key into the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of
the arrow and, at the same time, remove
emergency key element ;from the key.
Further information about:
R unlocking the driver's door (Y page 95)
R unlocking the luggage compartment
(Y page 100)
R locking the vehicle (Y page 96)
Inserting the emergency key element X
Push emergency key element ;com-
pletely into the key until it engages and
release catch :is back in its basic posi-
tion. Battery of the key
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. Key
89Opening and closing Z

H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them with the household rubbish.
They must be collected sep-
arately and disposed of in anenvironmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 90).
i If the key battery is checked within the
signal reception range of the vehicle, press- ing the &or% button:
R locks or
R unlocks the vehicle
i You can obtain a battery from any quali-
fied specialist workshop. Replacing the battery You require a CR 2025 3 V cell battery.
X Take the emergency key element out of the
key (Y page 89). X
Press emergency key element ;into the
opening in the key in the direction of the
arrow until battery tray cover :opens.
When doing so, do not hold cover :shut.
X Remove battery tray cover :. X
Repeatedly tap the key against your palm
until battery =falls out.
X Insert the new battery with the positive ter-
minal facing upwards. Use a lint-free cloth
to do so.
X Make sure that the surface of the battery is
free of lint, grease and other contamina-
tion.
X Insert the front tabs of battery tray cover :
and then press to close it.
X Insert emergency key element into the key
(Y page 89).
X Check the function of all key buttons on the
vehicle. 90
KeyOpening and closing

Problems with the key
Problem
Possible causes/consequences and
M
MSolutions You cannot lock or
unlock the vehicle
using the key. The key 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 key. Point the tip of the key at the driver's
door handle from close range and press the %or& but-
ton.
If this does not work: X Check the key battery (Y page 90) and replace it if necessary
(Y page 90).
X Lock (Y page 95) or unlock (Y page 96) the vehicle using the
emergency key element. 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 key. Point the tip of the key at the driver's
door handle from close range and press the %or& but-
ton.
If this does not work: X Lock (Y page 95) or unlock (Y page 96) the vehicle using the
emergency key element. The key is faulty.
X Lock (Y page 95) or unlock (Y page 96) the vehicle using the
emergency key element.
X Have the key checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 90) and replace it if necessary
(Y page 90).
If this does not work: X Lock (Y page 95) or unlock (Y page 96) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Lock (Y page 95) or unlock (Y page 96) the vehicle using the
emergency key element. Key
91Opening and closing Z

Problem
Possible causes/consequences and
M
MSolutions There is a fault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle can also not be locked/unlocked using the remote
control function:
X Lock (Y page 95) or unlock (Y page 96) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. The engine cannot be
started using the key. 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 359).
or
X Jump-start the vehicle (Y page 360).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is
in the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 90) and replace it if necessary
(Y page 90).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. 92
KeyOpening and closing

Problem
Possible causes/consequences and
M
MSolutions You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. 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 doors, thereby endangering other per-
sons or road users
R get out and be struck by oncoming traffic
R operate vehicle equipment and become
trapped, for example
In addition, the children could also set the
vehicle in motion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position P or shift manual transmission into
neutral
R start the engine
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the reach of children.
Stow luggage or loads preferably in the lug-
gage compartment. Observe the loading
guidelines (Y page 316).
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury. Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked with the key,
the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate
the double lock function by deactivating the
interior motion sensor (Y page 83). The doors
can then be opened from the inside after the vehicle has been locked from the outside. You
can open the rear doors from inside the vehi- cle if they are not secured by the child-proof
locks (Y page 71). The anti-theft alarm system
is triggered if the door is opened from the
inside. Switch off the alarm (Y page 81). Unlocking and opening the 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 to close. You could other-
wise 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 is raised again. Doors
93Opening and closing Z