2015 MERCEDES-BENZ A-CLASS HATCHBACK height

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

cause additional injuries in the event of an
accident, sudden braking or abrupt changes
of direction. There is an increased risk of
injury, possibly even fatal.
Always make sure that all vehicle occupants
are wearing their seat belt properly and are
seated correctly. G
WARNING
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 seatbelt is routed
across the centre of your shoulder. G
WARNING
Persons under 1.50 mtall cannot wear the
seat belts correctly without a suitable, addi-
tional restraint system. The seat belt cannot
perform its intended protective function if it is not fastened correctly. Also, an improperly
fastened seat belt can cause additional inju-
ries in the event of an accident, sudden brak-
ing or abrupt changes of direction. There is an increased risk of injury, possibly even fatal.
Secure persons less than 1.50 mtall in a suit-
able restraint system.
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 this Mercedes-Benz
vehicle. The child restraint system must be appropriate to the age, weight and size of
the child.
R always observe the instructions and safety
notes on the automatic front-passenger front airbag deactivation system
(Y
page 49)
R always observe the instructions and safety
notes on "Children in the vehicle" in this
Owner's Manual (Y page 57) in addition
to the child restraint system manufactur-
er's installation instructions G
WARNING
Seat belts cannot protect as intended, if:
R they are damaged, have been modified, are
extremely dirty, bleached or dyed
R the seat belt buckle is damaged or
extremely dirty
R modifications have been made to the belt
tensioners, belt anchorages or inertia reels
Seat belts may sustain non-visible damage in an accident, e.g. due to glass splinters. Modi-
fied or damaged seat belts can tear or fail, for example in the event of an accident. Modified
seat belt tensioners may be deployed unin-
tentionally or fail to be deployed when
required. There is an increased risk of injury,
possibly even fatal.
Never modify safety belts, seat belt tension-
ers, seat belt anchorages and inertia reels.
Ensure that seat belts are not damaged or
worn and are clean. After an accident, have
the seat belts checked immediately at a quali- fied specialist workshop.
Mercedes-Benz recommends that you only
use seat belts which have been approved
specifically for your vehicle by Mercedes-
Benz. Otherwise, your vehicle's general oper- ating permit could be invalidated.
Sports seat or AMG Performance seat: this
seat is designed for the standard three-point
seat belt. If you fit another multipoint seat
belt, e.g. sport or racing seat belts, the
restraint system cannot provide the best level of protection. G
WARNING
If you feed seat belts through the opening in
the seat backrest, the seat backrest may be
damaged or may even break in the event of an Occupant safety
43Safety
Z

accident. This poses an increased risk of
injury or even fatal injury.
Only use the standard three-point seat belt.
Never modify the seat belt system.
Correct seat belt use Observe the safety notes on the seat belt
(Y page 42).
All vehicle occupants must be wearing the
seat belt correctly before beginning the jour-
ney. Also make sure that all vehicle occu-
pants are always wearing the seat belt cor-
rectly while the vehicle is in motion.
When fastening the seat belt, always make
sure that:
R the seat belt tongue is only inserted into the
belt buckle belonging to that seat
R the seat belt is tight across your body
Avoid wearing bulky clothing, e.g. a winter
coat.
R the seat belt is not twisted
Only then can forces which occur be dis-
tributed across the surface of the seat belt.
R the shoulder section of the belt is always
routed across the centre of your shoulder
The shoulder section of the seat belt should
not touch your neck nor be routed under
your arm. If possible, adjust the seat belt to
the appropriate height.
R the lap belt passes across your lap as
tightly and as low down as possible
The lap belt must always be routed across
your hip joints and never across your abdo-
men. This applies particularly to pregnant
women. If necessary, press the lap belt
down into your hip joints and pull tight with the shoulder section of the belt.
R the seat belt is not routed across sharp,
pointed or fragile objects
If you have such items located on or in your
clothing, e.g. pens, keys or spectacles,
store these in a suitable place.
R only one person is using a seat belt Infants and children must never travel sit-
ting on the lap of a vehicle occupant. In the
event of an accident, they could be crushed
between the vehicle occupant and seat
belt.
R objects are never secured with a seat belt if
the seat belt is also being used by one of the
vehicle's occupants
Also ensure that no objects are placed
between a person and the seat. e.g. a cush- ion.
Seat belts are only intended to secure and
restrain vehicle occupants. Always observe
the "Loading guidelines" for securing objects,
luggage or loads (Y page 306).
Fastening and adjusting the seat belts Observe the safety notes on the seat belt
(Y
page 42) and the information on the cor-
rect use of the seat belt (Y page 44). Basic illustration
X Adjust the seat (Y page 106).
The seat backrest must be in an almost
vertical position.
X Pull the seat belt smoothly from belt outlet
=.
X Engage seat belt tongue ;in belt
buckle :.
The seat belt on the driver's seat and the
front-passenger seat may be tightened 44
Occupant safetySafety

the door or side window. You may other-
wise be in the deployment area of the air-
bags.
R Always keep your feet in the footwell in
front of the seat. Do not put your feet on the
dashboard, for example. Your feet may oth-
erwise be in the deployment area of the
airbag.
R Always secure persons less than 1.50 mtall
in suitable restraint systems. Up to this
height, the seat belt cannot be worn cor-
rectly.
If a child is travelling in your vehicle, also
observe the following notes:
R Always secure children under twelve years
of age and less than 1.50 mtall in suitable
child restraint systems.
R Child restraint systems should be fitted to
the rear seats.
R Only secure a child to the front-passenger
seat when the front-passenger front airbag
is disabled, and only then in a rearward-
facing child restraint system. If the
PASSENGER AIR BAG OFF indicator lamp is
permanently lit, the front-passenger front
airbag is disabled (Y page 41).
R Always observe the instructions and safety
notes on the automatic front-passenger
front airbag deactivation system
(Y page 49) and on "Children in the vehi-
cle" (Y page 57) in addition to the child
restraint system manufacturer's installa-
tion instructions.
Objects in the vehicle interior may pre-
vent the airbag from functioning cor-
rectly. Before starting your journey and to
avoid risks resulting from the speed of the
airbag as it deploys, make sure that:
R there are no people, animals or objects
between the vehicle occupants and an air-
bag.
R there are no objects between the seat, door
and B-pillar.
R no hard objects, e.g. coat hangers, are
hanging on the grab handles or coat hooks. R
no accessories, such as cup holders, are
attached to the vehicle within the deploy-
ment area of an airbag, e.g. to doors, side
windows, rear side trim or side walls.
R no heavy, sharp-edged or fragile objects
are in the pockets of your clothing. Store
such objects in a suitable place. G
WARNING
If you modify an airbag cover or affix objects
such as stickers to it, the airbag can no longer function correctly. There is an increased risk
of injury.
Never modify an airbag cover or affix objects
to it. G
WARNING
Sensors to control the airbags are located in
the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ling, as well as damaged doors, can lead to the function of the sensors being impaired. The
airbags might therefore not function properly any more. Consequently, the airbags cannot
protect vehicle occupants as they are
designed to do. This poses an increased risk
of injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
elling carried out at a qualified specialist
workshop.
Front airbags !
Do not place heavy objects on the front-
passenger seat. This could cause the sys-
tem to identify the seat as being occupied.
In the event of an accident, the restraint
systems on the front-passenger side may
be triggered and have to be replaced. Occupant safety
47Safety 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

The seat belt should:
R fit snugly across your body
R be routed across the middle of your
shoulder
R be routed across your hips in the pelvic
area
X Before starting off, adjust the rear-view mir-
ror and the exterior mirrors (Y page 113)
so that you have a good view of road and
traffic conditions.
X Vehicles with a memory function: save
the seat and exterior mirror settings
(Y page 116). Seats
Important safety notes
G
WARNING
If children adjust the seats, they could
become trapped, especially if they are unat-
tended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The seats can still be adjusted when there is
no key in the ignition lock. G
WARNING
When adjusting a seat, you or another vehicle occupant could become trapped by the guiderail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it.
Observe the safety notes on "Airbags"
(Y page 46) and "Children in the Vehicle"
(Y page 57). G
WARNING
If the driver's seat is not correctly engaged, it could unexpectedly move while driving. This could cause you to lose control of the vehicle.
There is a risk of an accident.
Always ensure that the driver's seat is
engaged before starting the vehicle. G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools. Seats
107Seats, steering wheel and mirrors Z

The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov- ers, child seats or booster seats.
! Make sure that there are no objects in the
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam- aged.
i Further related subjects:
R Luggage compartment enlargement
(folding down the rear seats)
(Y page 309) Adjusting the seats manually
Vehicles without the seating comfort
package Seat fore-and-aft adjustment:
X Lift handle :and slide the seat forwards
or backwards.
X Release lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle:
X Relieve the pressure on the backrest.
X Turn handwheel =forwards or backwards. Seat height:
X Pull handle ;upwards or push it down
repeatedly until the seat has reached the
desired height.
Vehicles with the seating comfort pack-
age Seat fore-and-aft adjustment:
X Lift handle :and slide the seat forwards
or rearwards.
X Release lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle: X Relieve the pressure on the backrest.
X Turn handwheel Aforwards or backwards.
Seat height: X Pull handle ?upwards or push it down
repeatedly until the seat has reached the
desired height.
Seat cushion angle:
X Adjust the angle so that your thighs have
gentle support.
X Turn handwheel =forwards or backwards.
Seat cushion length: X Lift handle ;and slide the front part of the
seat cushion forwards or backwards.
X Release lever ;again.
The seat cushion engages. 108
SeatsSeats, steering wheel and mirrors

Adjusting the seats electrically
:
Seat height
; Seat cushion angle
= Seat fore-and-aft adjustment
? Backrest angle
i You can store the seat settings using the
memory function (Y page 116). Adjusting the head restraints
Important safety notes G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off. Adjust the head restraint fore-and-aft posi-
tion so that it is as close as possible to the
back of your head.
General notes For vehicles with sports seats you cannot
adjust the front head restraints or the outer
rear head restraints.
Adjusting the head restraints manually Adjusting the head restraint height
X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :in the
direction of the arrow and push the head
restraint down to the desired position.
Adjusting the head restraint fore-and-aft
position Seats
109Seats, steering wheel and mirrors Z