2015 MERCEDES-BENZ A-CLASS HATCHBACK engine

Switching belt adjustment on/off
(on-board computer) ...................... 253
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 45
Adjusting the height ......................... 44
Cleaning ......................................... 335
Display message ............................ 266
Fastening ......................................... 44
Important safety guidelines ............. 42
Introduction ..................................... 42
Rear seat belt status indicator ......... 46
Releasing ......................................... 45
Warning lamp ................................. 292
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ................... 109
Adjusting (manually) ...................... 108
Adjusting the 4-way lumbar sup-
port ................................................ 110
Adjusting the head restraint .......... 109
Cleaning the cover ......................... 335
Correct driver's seat position ........ 106
Important safety notes .................. 107
Seat heating problem .................... 112
Storing settings (memory func-
tion) ............................................... 116
Switching seat heating on/of f....... 111
Securing a load
see Stowage space
Securing luggage ............................... 311
Selector lever
Cleaning ......................................... 334
Sensors (cleaning instructions) ....... 332
Service
see ASSYST PLUS
Service Centre
see Qualified specialist workshop
Service menu (on-board com-
puter) .................................................. 250
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 402
Coolant (engine) ............................ 402
Engine oil ....................................... 400
Fuel ................................................ 396
Important safety notes .................. 396 Washer fluid ................................... 403
Setting the air distribution ............... 143
Setting the airflow ............................ 143
Settings
Factory (on-board computer) ......... 253
On-board computer ....................... 250
SETUP (on-board computer) ............. 254
Shifting to neutral (manual trans-
mission) ............................................. 168
Side lamps
Switching on/of f........................... 121
Side windows
Convenience closing ........................ 95
Convenience opening ...................... 95
Important safety notes .................... 94
Opening/closing .............................. 94
Problem (malfunction) ..................... 98
Resetting ......................................... 96
Reversing feature ............................. 94
Sidebag ................................................ 48
Sliding sunroof
see Panorama sliding sunroof
Snow chains ...................................... 361
Socket
Luggage compartment ................... 317
Sockets
Centre console .............................. 317
General notes ................................ 316
Rear compartment ......................... 317
Specialist workshop ............................ 24
Spectacles compartment ................. 307
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 250
Digital ............................................ 243
In the Instrument cluster ................. 30
Segments ...................................... 238
Selecting a display uni t.................. 250
SPEEDTRONIC
Deactivating variable ..................... 196
Display message ............................ 281
Function/note s............................. 194
Important safety notes .................. 194
LIM indicator lamp ......................... 195
Permanent ..................................... 196 Index
17

Selecting ........................................ 195
Storing the current speed .............. 195
Variabl e......................................... 195
SPEEDTRONIC (variable)
Storing the current speed and
calling up the last stored speed ..... 195
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 75
Warning lamp ................................. 298
Start-off assist
Activating ....................................... 206
Important safety notes .................. 206
Start/Stop button
Removing ....................................... 159
Starting the engine ........................ 160
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 159
STEER CONTROL .................................. 77
Steering
Display message ............................ 290
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (manually) ...................... 112
Button overview ............................... 32
Buttons (on-board computer) ......... 239
Cleaning ......................................... 334
Gearshift paddle s........................... 177
Important safety notes .................. 112
Steering wheel gearshift paddles .... 177
Stopwatch (RACETIMER) ................... 254
Stowage compartment
Map pockets .................................. 309
Stowage compartments
Armrest (front) ............................... 308
Armrest (under) ............................. 308
Centre console .............................. 307
Centre console (rear) ..................... 309
Cup holde r..................................... 313
Glove compartment ....................... 307
Important safety information ......... 307
Spectacles compartment ............... 307
Under driver's seat/front-
passenger sea t.............................. 308 Stowage net
....................................... 309
Stowage space
Stowage net ................................... 309
Summer tyres .................................... 360
Sun visor ............................................ 315
Suspension
Adaptive Damping System ............. 208
Suspension settings
AMG RIDE CONTROL sports sus-
pension .......................................... 207 T
Tail lamps see Lights
Tailgate
Display message ............................ 288
Emergency unlocking ....................... 93
Important safety notes .................... 92
Opening dimensions ...................... 404
Opening/closing (from outside) ....... 93
Tank
see Fuel tank
Technical data
Capacities ...................................... 396
Emergency spare wheel ................. 392
Information .................................... 394
Trailer load s................................... 406
Tyres/wheels ................................. 372
Vehicle data ................................... 404
Telephone
Accepting a call (multifunction
steering wheel) .............................. 247
Display message ............................ 290
Introduction ................................... 246
Menu (on-board computer) ............ 246
Number from the phone book ........ 247
Redialling ....................................... 247
Rejecting/ending a call ................. 247
Telephone compartment ................ 308
Temperature
Coolant .......................................... 239
Coolant (on-board computer,
Mercedes-AMG vehicles) ............... 254
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 254
Outside temperature ...................... 239
Setting (climate control )................ 142 18
Index

Transmission oil (on-board com-
puter, Mercedes-AMG vehicles) ..... 254
TEMPOMAT
Function/notes ............................. 191
Through-loading ................................ 309
Timing (RACETIMER) .........................254
TIREFIT kit .......................................... 341
Tyre pressure not reached ............. 343
Tyre pressure reached ................... 343
Top Tether ............................................ 60
Total distance recorder .................... 242
Tow-away protection
Activating ......................................... 78
Deactivating ..................................... 79
Function .......................................... .78
Tow-starting
Emergency engine starting ............ 354
Fitting the towing eye .................... 352
Important safety notes .................. 350
Removing the towing eye ............... 352
Towing
Important safety notes .................. 350
Notes for 4MATIC vehicles ............ 354
Transporting the vehicle ................ 353
Towing a trailer
Active Parking Assist ..................... 212
Axle load, permissibl e.................... 406
ESP ®
(Electronic Stability Pro-
gram) ............................................... 76
Failure check for LEDs ................... 234
General notes ................................ 231
Pulling away with a traile r.............. 161
Trailer tow hitch display message .. 289
Towing away
Fitting the towing ey e.................... 352
Removing the towing eye ............... 352
With both axles on the ground ....... 353
With front axle raised ..................... 352
Towing eye ......................................... 339
Traffic Sign Assist
Activating ....................................... 224
Activating/deactivating the warn- ing function .................................... 248
Display message ............................ 280
Function/note s............................. 223
Important safety notes .................. 224
Instrument cluster display ............. 224 Trailer coupling
see Towing a trailer
Trailer towing
7-pin connecto r............................. 234
Blind Spot Assist ............................ 228
Cleaning the trailer tow hitch ......... 333
Coupling up a traile r...................... 233
Decoupling a trailer ....................... 233
Driving tips .................................... 231
Folding in the ball coupling ............ 233
Folding out the ball coupling .......... 232
Important safety notes .................. 229
Lights display message .................. 271
Mounting dimensions .................... 405
Power supply ................................. 234
Trailer load s................................... 406
Transmission
see Automatic transmission
see Manual transmission
Transmission position display
(DIRECT SELECT lever) ...................... 170
Transporting the vehicle .................. 353
Trim pieces (cleaning instruc-
tions) .................................................. 335
Trip computer (on-board com-
puter) .................................................. 242
Trip meter
Calling up ....................................... 242
Resetting (on-board computer) ...... 243
Turn signals
Changing bulbs (front) ................... 128
Changing bulbs (rear) .................... 128
Switching on/of f........................... 122
TV
Operating (on-board computer) ..... 246
see Separate operating instructions
Two-way radio
Frequencies ................................... 394
Installation ..................................... 394
Transmission output (maximum) .... 394
Type identification plate
see Vehicle identification plate
Tyre pressure
Calling up (on-board computer) ..... 364
Display message ............................ 283
Not reached (TIREFIT) .................... 343
Reached (TIREFIT) .......................... 343
Recommended ............................... 362 Index
19

Protection of the environment
General notes
H
Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
Our objectives are to use the natural resour-
ces which form the basis of our existence on
this planet sparingly and in a manner which
takes the requirements of both nature and
humanity into consideration.
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 tyre wear depend on
the following factors:
R operating conditions of your vehicle
R your personal driving style
You can influence both factors. Therefore,
please bear the following in mind:
Operating conditions:
R avoid short trips, as these increase fuel
consumption.
R observe the correct tyre pressure.
R do not carry any unnecessary weight in the
vehicle.
R remove the roof rack once you no longer
need it.
R a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R all maintenance work should be 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 Ôof its maximum engine speed.
R switch off the engine in stationary traffic.
R monitor the vehicle's fuel consumption. Returning an end-of-life vehicle
EU countries only:
Mercedes-Benz will take back your old vehicle to dispose of it in an environmentally-respon-sible manner in accordance with the Euro-
pean Union (EU) End of Life Vehicles Direc-
tive.
There is a network of return points and dis-
assembly plants available. You can return
your vehicle to these plants free of charge.
This makes a valuable contribution to the
recycling process and the conservation of
resources.
For further information on recycling old vehi- cles, recovery and the terms of the policy,
visit the Mercedes-Benz homepage. Genuine Mercedes-Benz parts
H
Environmental note
Daimler AG also supplies reconditioned
assemblies and parts which are of the same
quality as new parts. For these, the same war-
ranty applies as for new parts.
! Airbags and seat belt tensioners, as well
as control units and sensors for these
restraint systems, may be installed in the
following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R dashboard
R instrument cluster
R centre console 22
Introduction

Diagnostics connection
The diagnostics connection is only intended
for the connection of diagnostic equipment at
a qualified specialist workshop. G
WARNING
If you connect equipment to a diagnostics
connection in the vehicle, it can affect the
operation of the vehicle systems. This may
affect the operating safety of the vehicle.
There is a risk of an accident.
Do not connect any equipment to a diagnos-
tics connection in the vehicle. G
WARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardises the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribed in order to ensure that there is always sufficient room for the pedals. Do not use
loose floormats and do not place several floor-mats on top of one another.
! If the engine is switched off and equip-
ment on the diagnostics connection is
used, the starter battery may discharge.
Connecting equipment to the diagnostics
connection can lead to emissions monitoring information being reset, for example. This
may lead to the vehicle failing to meet the
requirements of the next emissions test dur-
ing the main inspection. Qualified specialist workshop
A qualified specialist workshop has the nec-
essary special skills, tools and qualifications
to correctly carry out any necessary work on
your vehicle. This particularly applies to work
relevant to safety.
Observe the notes in the Service Booklet. Always have the following work carried out at
a qualified specialist workshop:
R work relevant to safety
R service and maintenance work
R repair work
R modifications, installations and conver-
sions
R work on electronic components
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre. Vehicle registration
Mercedes-Benz may ask its Service Centres
to carry out technical inspections on certain
vehicles. The quality or safety of the vehicle is
improved as a result of the inspection.
Mercedes-Benz can only inform you about
vehicle checks if it has your registration data. It is possible that your vehicle has not yet
been registered in your name in the following
cases:
R if your vehicle was not purchased at an
authorised specialist dealer.
R if your vehicle has not yet been examined at
a Mercedes-Benz Service Centre.
It is advisable to register your vehicle with a
Mercedes-Benz Service Centre.
Inform Mercedes-Benz as soon as possible
about any change in address or vehicle own-
ership. You can do this at a Mercedes-Benz
Service Centre, for example. Correct use
If you remove any warning stickers, you or
others could fail to recognise certain dangers.
Leave warning stickers in position.
Observe the following information when driv- ing your vehicle:
R the safety notes in this manual
R the vehicle technical data 24
Int
roduction

Warning and indicator lamps
Function Page
:
L
Dipped-beam head-
lamps 121
;
T
Side lamps 121
=
K
Main-beam head-
lamps 122
?
÷
ESP® 297
A
!
Electric parking brake
(red) 300
B
!
Electric parking brake
(yellow) 300
C
·
Distance warning 303
D
#!
Turn signals 122
E
6
Restraint system 41
F
ü
Seat belt 292
G
%
Diesel engine: pre-
glow 160
M
SPORT handling
mode (Mercedes-AMG
vehicles) 298 Function Page
H
?
Coolant 301
I
R
Rear foglamp 121
J
N
This lamp has no func-
tion K
;
Engine diagnostics 301
L
h
Tyre pressure monitor 304
M
æ
Reserve fuel 301
N
å
ESP®
OFF 297
O
!
ABS 295
P
J
Brakes 294Instrument cluster
31At a glance

For more information about children travel-
ling with you in the vehicle, see "Children in
the vehicle" (Y page 57). Important safety notes
G
WARNING
If the restraint system is modified, it may no
longer work as intended. The restraint system
may then not perform its intended protective function by failing in an accident or triggering
unexpectedly, for example. There is an
increased risk of injury, possibly even fatal.
Never modify parts of the restraint system. Do not attempt to modify the wiring as well as
electronic components or their software.
If it is necessary to modify an airbag system to
accommodate a person with disabilities, con- tact a Mercedes-Benz Service Centre for
details. Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and
at regular intervals while the engine is run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 6 restraint system warning lamp in
the instrument cluster lights up when the igni- tion is switched on. It goes out no later than afew seconds after the vehicle is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 6
restraint system warning lamp:
R does not light up after the ignition is
switched on
R does not go out after a few seconds with
the engine running
R lights up again while the engine is running G
WARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or might not be trig-
gered at all in the event of an accident with a high rate of vehicle deceleration. This can
effect belt tensioners or airbags, for example. There is an increased risk of serious or even
fatal injuries.
Have the restraint system checked and
repaired immediately at a qualified specialist
workshop. PASSENGER AIRBAG indicator lamp
PASSENGER AIR BAG ON indicator lamp
:
and PASSENGER AIR BAG OFF indicator
lamp ;are part of the automatic deactiva-
tion system of the front-passenger front air-
bag.
The indicator lamps display the status of the
front-passenger front airbag.
R PASSENGER AIR BAG ON lights up: the
front-passenger front airbag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
airbag is deployed.
R PASSENGER AIR BAG OFF lights up: the
front-passenger front airbag is disabled. It
will then not be deployed in the event of an
accident. Occupant safety
41Safety Z

safe distance from the vehicle in front. Drive
carefully.
Function PRE-SAFE
®
intervenes:
R in emergency braking situations, e.g. when
BAS is activated
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely
R on vehicles with DISTRONIC PLUS: if adap-
tive Brake Assist intervenes powerfully
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the front seat belts are pre-tensioned.
R if the vehicle skids, the side windows and
the panorama sliding sunroof are closed.
R vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavourable position.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-tensioning. All settings made by
PRE-SAFE ®
can then be reversed.
If the seat belt pre-tensioning is not reduced:
X Move the seat backrest or seat back
slightly when the vehicle is stationary.
Seat belt pre-tensioning is reduced and the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. Infor-
mation about the convenience function can
be found under "Belt adjustment"
(Y page 45). Automatic measures after an acci-
dent
Immediately after an accident, the following
measures may be implemented, depending
on the type and severity of the impact:
R the hazard warning lamps are activated
R the emergency lighting is activated
R the vehicle doors are unlocked
R the front side windows are lowered
R the engine is switched off and the fuel sup-
ply is cut off
R vehicles with the Mercedes-Benz emer-
gency call system: automatic emergency
call Children in the vehicle
Important safety notes
Accident statistics show that children
secured in the rear seats are safer than chil-
dren secured in the front-passenger seat. For this reason, Mercedes-Benz strongly advises
that you install a child restraint system on a
rear seat. Children are generally better pro-
tected there.
If a child younger than twelve years old and
under 1.50 m in height is travelling in the
vehicle:
R always secure the child in a child restraint
system suitable for Mercedes-Benz vehi-
cles. The child restraint system must be
appropriate to the age, weight and size of
the child.
R be sure to observe the instructions and
safety notes in this section in addition to
the child restraint system manufacturer's
installation instructions.
R always pay attention to the instructions
and safety notes on the automatic front-
passenger front airbag deactivation system (Y page 49). Children in the vehicle
57Safety Z