2008 MERCEDES-BENZ A-CLASS HATCHBACK engine

Instrument cluster
27Function Page
1
LIM indicator lamp* 115
2
ESP
®
(Electronic Stability
Program) warning lamp 226
3
Speedometer
4
Turn signal indicator lamp 79
5
Multi-function display,
upper section
100
6
Trip distance 98
7
Total distance 103
8
Turn signal indicator lamp 79
9
ABS (anti-lock braking sys-
tem) warning lamp
224
a
Diesel engine: preglow indi-
cator lamp
88
b
Rev counter 98
c
SRS (Supplemental
Restraint System) warning
lamp
226 Function Page
d
Engine diagnostics warning
lamp
227
e
Reserve fuel warning lamp 229
f
Fuel filler cap location: the
fuel filter cap is to the rear
on the right g
Fuel gauge
h
Main-beam indicator lamp 80
j
Dipped-beam indicator
lamp
78
k
Seat belt warning lamp 228
l
Clock 98
Speedtronic*: stored limit
speed
117 Function Page
m
Depending on the setting in
the on-board computer:
108
• Outside temperature
1 • Digital speedometer
n
Rear window wiper
switched on
83
o
Multi-function display,
lower section
100
p
AUTOTRONIC*: drive pro-
gram display
94
q
AUTOTRONIC*: selector
lever position display
94
r
Brake system warning lamp 226
s
Reset button 97
t
Coolant temperature gauge 97
1
Vehicles for United Kingdom: the speed in km/h is always shown instead of the outside temperature. At a glance
* optional
169_AKB; 2; 4, en-GB
wdomann,
Version: 2.10.6
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Instrument cluster
29Function Page
1
LIM indicator lamp* 115
2
ESP
®
warning lamp 226
3
Speedometer
4
Turn signal indicator lamp 79
5
Multi-function display,
upper section
100
6
Trip distance 98
7
Total distance 103
8
Turn signal indicator lamp 79
9
ABS warning lamp 224
a
Diesel engine: preglow indi-
cator lamp
88
b
Rev counter 98
c
SRS warning lamp
226 Function Page
d
Engine diagnostics warning
lamp
227
e
Reserve fuel warning lamp 229
f
Fuel filler cap location: the
fuel filter cap is to the rear
on the right g
Fuel gauge
h
Main-beam indicator lamp 80
j
Dipped-beam indicator
lamp
78
k
Seat belt warning lamp 228
l
Clock 98
Speedtronic*: stored limit
speed
117 Function Page
m
Depending on the setting in
the on-board computer:
108
• Outside temperature
2 • Digital speedometer
n
Rear window wiper
switched on
83
o
Multi-function display,
lower section
100
p
AUTOTRONIC*: drive pro-
gram display
94
q
AUTOTRONIC*: selector
lever position display
94
r
Brake system warning lamp 226
s
Reset button 97
t
Coolant temperature gauge 97
2
Vehicles for United Kingdom: the speed in km/h is always shown instead of the outside temperature. At a glance
* optional
169_AKB; 2; 4, en-GB
wdomann,
Version: 2.10.6
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Occupant safety
37carry out any modifications on the restraint
systems.
Never tamper with electronic components
and their software.
SRS (Supplemental Restraint System)
The SRS reduces the risk of occupants com-
ing into contact with the vehicle's interior in
the event of an accident. It can also reduce
the forces to which occupants are subjected
during an accident.
The SRS consists of:
R The 1 warning lamp
R belt tensioners
R belt force limiters
R airbags
The 1 1warning lamp The SRS functions are checked regularly
when you turn on the ignition and when the
engine is running. Malfunctions can therefore
be detected in good time.
The
1 warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. G
Risk of injury
If SRS is malfunctioning, individual systems
may be activated unintentionally or not be
deployed in the event of an accident with
heavy braking.
A malfunction has occurred if the 1
warning lamp:
R does not light up when you switch on the
ignition
R does not go out after the engine has been
running for a few seconds
R lights up again once the engine is running
In this case, have SRS checked immedi-
ately at a qualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags In the event of a collision, the sensor in the
airbag control unit evaluates important phys-
ical data such as duration, direction and force
of the vehicle deceleration or acceleration.
Based on the evaluation of this data and
depending on the vehicle's rate of longitudi-
nal deceleration in a collision, in the first
stage the airbag control unit pre-emptively
triggers the belt tensioners.The front airbags are only deployed if there is
an even higher rate of vehicle deceleration in
a longitudinal direction.
Your vehicle has adaptive, dual stage front
airbags. When the first activation threshold is
reached, the front airbag is filled with enough
propellant gas to reduce the risk of injuries.
The front airbag is only fully inflated if a sec-
ond threshold is reached within a few milli-
seconds, due to the control unit having detec-
ted further deceleration.
Criteria for triggering belt tensioners and
airbags
In the first stage of a collision, the airbag con-
trol unit evaluates the duration and direction
of vehicle acceleration or deceleration in
order to determine whether it is necessary to
trigger the belt tensioner and/or airbag.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
rate of deceleration of the vehicle. This proc-
ess is pre-emptive in nature as the airbag
must be deployed during – and not at the end
of – the collision.
i
Airbags are not deployed in all types of
accidents. They are controlled by complex
sensor technology and evaluation logic.
This process is pre-emptive in nature as Safety
169_AKB; 2; 4, en-GB
wdomann
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Occupant safety
38airbag deployment must take place during
the impact and must be adapted to provide
calculated, additional protection for the
vehicle occupants. Not all airbags are
deployed in an accident.
The different airbag systems work inde-
pendently of each other. However, the
deployment of each individual system will
depend on the type of accident determined
by the control system in the first stages of
the collision (head-on collision, side impact
and overturn) and the extent of the acci-
dent (in particular, the vehicle's rate of
deceleration or acceleration).
The rate of vehicle deceleration or accelera-
tion and the direction of the force are basi-
cally determined by:
R the distribution of forces during the colli-
sion
R the collision angle
R the deformation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle has collided, e.g. the other vehi-
cle
Factors which can only be seen and measured
after a collision has occurred do not play a decisive role in the deployment of an airbag,
nor do they provide an indication of it.
The vehicle may be deformed significantly,
e. g. on the bonnet or the wing, without an
airbag being deployed. This is the case if only
parts which are relatively easily deformed are
affected and the necessary deceleration does
not occur. Conversely, airbags may be
deployed even though the vehicle suffers only
minor deformations. This is the case if, for
example, very rigid vehicle parts such as lon-
gitudinal body members are affected and suf-
ficient deceleration occurs as a result.
Belt tensioners, belt force limiters
The front seat belts and the outer seat belts
in the rear are equipped with belt tensioners.
If the seat belt is also equipped with a belt
force limiter, the force exerted by the seat
belt on the seat occupant is reduced.
Belt tensioners tighten the seat belts in an
accident, pulling them close against the body.
i
Belt tensioners do not correct incorrect
seat positions or incorrectly fastened seat
belts.
Belt tensioners do not pull occupants back
towards the backrest. The front belt force limiters are synchronised
with the front airbags, which distribute the
forces exerted by the belt force limiters on
the occupant over a greater area.
When the ignition is switched on, the belt ten-
sioner is triggered:
R
only if the restraint systems are operational
(the 1 warning lamp lights up after the
ignition is switched on and goes out once
the engine is running) (Y page 37)
R in the event of a head-on or rear-end colli-
sion if the vehicle decelerates or acceler-
ates rapidly in a longitudinal direction dur-
ing the initial stages of impact
If the airbags are deployed, you will hear a
bang and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that escapes
does not generally constitute a health hazard.
The 1 warning lamp lights up. G
Risk of injury
If the seat belt tensioners have been trig-
gered, they provide no additional protec-
tion in the event of another accident. There-
fore, have belt tensioners which have been
triggered replaced at a qualified specialist
workshop. Safety
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Driving safety sys
tems56 G
Risk of accident
If BAS has malfunctioned, the braking sys-
tem remains available with full brake boost-
ing effect. However, braking force is not
automatically increased in emergency
braking situations and the stopping dis-
tance may increase. Adaptive brake lamps
i Adaptive brake lamps are only available in
certain countries.
If you brake sharply from a speed of more
than 50 km/h or if braking is assisted by BAS,
the brake lamps flash rapidly. In this way,
traffic travelling behind you is warned in an
even more noticeable manner.
If you brake sharply from a speed of more
than 70 km/h to a standstill, the hazard warn-
ing lamps are activated automatically. If the
brakes are applied again, the brake lamps
light up continuously. The hazard warning
lamps switch off automatically if you travel
faster than 10 km/h. You can also switch off
the hazard warning lamps using the hazard
warning switch button ( Ypage 80). ESP
®
(Electronic Stability Program)
ESP ®
monitors driving stability and traction,
i.e. power transmission between tyres and
the road surface.
ESP ®
detects when a wheel spins or the vehi-
cle starts to skid. ESP ®
stabilises the vehicle
by targeted braking of individual wheels and
by limiting engine power. It assists you when
pulling away on wet or slippery roads. ESP ®
also stabilises the vehicle during braking.
When ESP ®
intervenes, the vwarning
lamp flashes in the instrument cluster. G
Risk of accident
If the v warning lamp in the instrument
cluster flashes, proceed as follows:
R only depress the accelerator pedal as far
as necessary when pulling away.
R adapt your driving style to suit the pre-
vailing road and weather conditions.
The vehicle could otherwise go into a skid.
ESP ®
cannot reduce the risk of an accident
if you drive too fast. ESP ®
cannot override
the laws of physics.
! The ignition must be switched off (key in
position 0or 1in the ignition lock), if: R
the parking brake is being tested using a
dynamometer
R the vehicle is being towed with the front
axle raised
Application of the brakes by ESP ®
could
otherwise destroy the brake system on the
front axle.
i Only use wheels with the recommended
tyre sizes. Only then will ESP ®
function
properly. Steering assistant STEER CONTROL
The steering assistant STEER CONTROL helps
you by transmitting a noticeable steering
force to the steering wheel in the direction
required for vehicle stabilisation. This steer-
ing assistance is provided in particular if:
R both right wheels or both left wheels are on
a wet or slippery road surface when you
brake
R the vehicle starts to skid
You have control over the steering at all
times. G
Risk of accident
If there is an ESP ®
malfunction, you will not
receive any steering assistance from the Safety
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Opening and closing
61Opening the doors from the inside
You can open a door from the inside at any
time, even if it has been locked. X
Pull door handle 2.
If the door is locked, locking knob 1pops
up. The door is unlocked and can be
opened. Automatic locking feature
The vehicle will lock automatically once you
have pulled away.
You can switch off the automatic locking
function via the on-board computer
(Y page 111).
i The vehicle is locked automatically when
the ignition is switched on and the wheels
begin to turn. There is therefore a risk of
being locked out when the vehicle is being
pushed or tested on a dynamometer. Locking/unlocking the vehicle from
the inside
You can centrally lock or unlock the vehicle
from the inside. This feature may be useful if,
for example, you wish to unlock the
passenger door from the inside or lock the
vehicle before you pull away. G
Risk of accident
Do not leave children unsupervised in the
vehicle. They could open a door from the
inside – even if it is locked – and thereby
endanger themselves and others. X
To lock: press button 1.
X To unlock: press button 2. Tailgate
G
Risk of poisoning
Exhaust fumes could enter the vehicle inte-
rior if the engine is running and the tailgate
is open. This could poison you. You should
therefore make sure that the tailgate is
always closed when the engine is running.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate. Controls
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Key positions
62
Opening from the outside You can only open the tailgate after unlocking
it first.
X To unlock centrally: press thekbut-
ton on the key. X
Pull handle 1.
X Raise the tailgate.
Closing from the outside G
Risk of injury
Make sure that nobody can become trap-
ped as you close the tailgate.
i Do not leave the key in the luggage com-
partment. You could otherwise lock your-
self out. X
Pull the tailgate down using recess 1.
X Push the tailgate closed from the outside.
X Lock the vehicle if necessary with
the ‹ button on the key. Key positions
}
To remove the key
$ Power supply for some consumers, such
as the windscreen wipers
% Ignition (power supply for all consumers)
and drive position
& To start the engine
i Even if the key is not for the vehicle in
question, it will still turn in the ignition lock.
The ignition is not switched on. The engine
cannot be started. Cont
rols
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Seat belts
75
X
Route the belt over the centre of the shoul-
der without twisting it.
X Engage belt tongue 2into buckle 3.
X 5-door vehicle: if necessary, adjust the
belt to the appropriate height
(Y page 75).
X 3-door vehicles: make sure that swivelling
belt guide 5is in the correct position.
X All: if necessary, pull upwards on the shoul-
der section of the belt to tighten the belt
across your body.
Routing the belt X
Press release button 4and guide belt
tongue 2back towards belt sash guide
1. Belt warning for driver and front
passenger
The < seat belt warning lamp in the instru-
ment cluster reminds you that all passengers
should fasten their seat belts. It may light up
continuously or flash. Additionally, there may
be a warning tone.
The < seat belt warning lamp goes out and
the acoustic signal ceases as soon as the
driver and passenger have fastened their seat
belts.
For certain countries only: regardless of
whether the driver or the front passenger
already have their seat belt fastened, the
< seat belt warning lamp lights up for six
seconds after the engine has been started. It
then goes out when the driver and front
passenger have already fastened their seat
belts.
i Further information about the belt warning lamp (Y page 228). Belt height adjustment
5-door vehicles only: you can adjust the
seat belt height on the driver's seat and front-
passenger seat.
Adjust the belt to a height that allows it to be
routed across the middle of your shoulder. 1
Release catch
X To raise: slide the belt sash guide upwards.
The belt sash guide engages in various posi-
tions.
X To lower: press and hold release button
1.
X Slide the belt sash guide downwards.
X Let go of release button 1and make sure
that the belt sash guide has engaged. Controls
169_AKB; 2; 4, en-GB
wdomann,
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