
Occupant safety
44 approved for use in Mercedes-Benz vehi-
cles.
Vehicles with a through-loading feature* in
the rear seat backrest: do not fit a rear-
ward-facing child restraint system on the
centre rear seat.
Child seat on the front-passenger seat Warning on the front-passenger sun visor Warning symbol for a rearward-facing child
restraint system
G
Risk of injury
If the front-passenger front airbag is not
disabled:
R a child secured in a child restraint system
on the front-passenger seat could be
seriously and even fatally injured by the
front-passenger front airbag deploying.
This is especially a risk if the child is in
the immediate vicinity of the front-
passenger front airbag when it deploys.
R a child must never be secured on the
front-passenger seat in a rearward-facing
child restraint system. Only secure a rearward-facing child restraint system on
a suitable rear seat.
R always move the front-passenger seat to
the rearmost position if you secure a
child in a forward-facing child restraint
system on the front-passenger seat.
The front-passenger front airbag is not dis-
abled:
R on vehicles without automatic child seat
recognition on the front-passenger
seat*.
R on vehicles with automatic child seat rec-
ognition on the front-passenger seat*, if
there is no child restraint system with
automatic child seat recognition fitted to
the front-passenger seat.
R on vehicles with automatic child seat rec-
ognition on the front-passenger seat* if
the 4 PASSENGER AIRBAG OFF warn-
ing lamp is not lit.
To draw attention to this danger, a corre-
sponding warning sticker on the dashboard
and on both sides of the sun visor on the
front-passenger side.
Information about recommended child
restraint systems is available at any
Mercedes-Benz Service Centre. Safety
* optional
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4 2008-10-17T11:22:31+02:00 - Seite 44Dateiname: 6515_1640_02_buchblock.pdf; preflight

Driving safety sys
tems 55Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
R ABS ( Anti-lock Braking System)
R BAS ( Brake Assist System)
R ESP ®
( Electronic Stability Program)
R Steering assistant STEER CONTROL
i In wintry road conditions, always use win-
ter tyres (M+S tyres) and, where necessary,
snow chains. Only in this way will the driv-
ing safety systems described in this section
work as effectively as possible. G
Risk of accident
The risk of an accident is significantly
increased by driving too fast. This is partic-
ularly the case when cornering as well as
on wet or slippery roads or when driving too
close to the vehicle in front.
The driving safety systems described in this
section can neither reduce this risk nor
override the laws of physics.
For this reason, always adapt your driving
style to suit prevailing road and weather
conditions. Maintain sufficient distance from other road users and objects on the
road.
ABS (Anti-lock Braking System)
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the vehi-
cle when braking.
ABS works from a speed of about 8 km/h
upwards, regardless of road surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently. G
Risk of accident
Do not depress the brake pedal several
times in quick succession (pumping).
Depress the brake firmly and evenly. Pump-
ing the brake pedal reduces the braking
effect.
Braking If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
X
If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over. X
To make a full brake application:
depress the brake pedal with full force. G
Risk of accident
If ABS is faulty, the wheels could lock when
braking. This limits the steerability of the
vehicle when braking and the braking dis-
tance may increase.
If ABS is deactivated due to a malfunction,
then BAS and ESP are also deactivated.
There is an increased risk of your vehicle
skidding in certain situations.
You should always adapt your driving style
to suit prevailing road and weather condi-
tions. BAS (Brake Assist)
BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
X Keep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. Safety
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4
2008-10-17T11:22:31+02:00 - Seite 55 ZDateiname: 6515_1640_02_buchblock.pdf; preflight

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 79). 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
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4 2008-10-17T11:22:31+02:00 - Seite 56Dateiname: 6515_1640_02_buchblock.pdf; preflight

Seats
65Adjusting the seat electrically*
1
Head restraint height
2 Backrest angle
3 Seat fore-and-aft adjustment
4 Seat cushion angle
5 Seat height
X Make sure that the key is in position 1or
2 in the ignition lock or that the respective
door is open.
Seat fore-and-aft adjustment X
Slide the button forwards or back in the
direction of arrow 3. Seat height X
Slide the button up or down in the direction
of arrow 5.
Seat cushion angle Adjust the angle so that your thighs are gently
supported.
X
Slide the button up or down in the direction
of arrow 4.
Backrest angle X
Slide the button forwards or back in the
direction of arrow 2.
Head restraint height G
Risk of injury
Make sure that the central area of the head
restraint supports the back of your head at
about eye level. You could seriously injure
your neck if your head is not correctly sup-
ported by the head restraint in the event of
an accident. Never travel without a cor-
rectly adjusted and engaged head restraint. X
Slide the button up or down in the direction
of arrow 1.
Head restraint angle X
Push or pull the upper edge of the head
restraint in the direction of the arrow. Controls
* optional
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4 2008-10-17T11:22:31+02:00 - Seite 65 ZDateiname: 6515_1640_02_buchblock.pdf; preflight

Mirrors
71
Adjusting the exterior mirrors
1
Adjustment button
2 Right-hand exterior mirror
3 Left-hand exterior mirror
X Make sure that the key is in position 1or
2 in the ignition lock.
X Press button 2for the right-hand exterior
mirror or button 3for the left-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button 1as long
as the indicator lamp is lit.
X Press adjustment button 1up, down, to
the right or to the left until the exterior mir- ror is set to a position which provides you
with a good overview of traffic conditions.
Folding the exterior mirrors in or out
electrically* 1
To fold the exterior mirrors in or out
X Make sure that the key is in position 1or
2 in the ignition lock.
X Briefly press button 1.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while the vehicle is
in motion; otherwise, they may vibrate. Resetting the exterior mirrors If the battery has been disconnected or has
become discharged, the exterior mirrors
must be reset. If this is not done, the exterior
mirrors will not fold in when you select the
"Fold in mirrors when locking" function in the
on-board computer (Y page 110).
X Make sure that the key is in position 1in
the ignition lock.
X Briefly press button 1.
Folding the exterior mirrors in or out
automatically* If the "Fold in mirrors when locking" function
is activated in the on-board computer
(Y
page 110):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the out-
side.
R The exterior mirrors fold out again auto-
matically as soon as you unlock the vehicle
and then open the driver's or front-
passenger door.
i If you have activated this function and fold
in the exterior mirrors using button 1, they
will not be folded out automatically. You Controls
* optional
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4 2008-10-17T11:22:31+02:00 - Seite 71 ZDateiname: 6515_1640_02_buchblock.pdf; preflight

Seat belts
72can only fold out the exterior mirrors again
using button
1. Seat belts
Wearing seat belts
Seat belts are the most effective means of
restraining the movement of vehicle occu-
pants in the event of an accident. This
reduces the risk of vehicle occupants coming
into contact with the vehicle interior. G
Risk of injury
A seat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, cannot perform its inten-
ded protective function. Under certain cir-
cumstances this could cause severe or
even fatal injuries.
Make sure that all occupants – in particular,
pregnant women – wear their seat belt cor-
rectly at all times.
R The seat belt must pass closely over your
body and must not be twisted. You
should therefore avoid wearing bulky
clothing (e.g. a winter coat). The shoulder
belt section must be routed across the
middle of your shoulder – on no account
across your neck or under your arm – and
pulled tight against your upper body. The
lap belt must always pass across your lap
as low down as possible, i.e. over your hip joints – not across your abdomen. If
necessary, push down the belt strap
slightly and then retighten it in the roll-up
direction.
R Do not route the belt strap across sharp
or fragile objects, especially if these are
located on or in your clothing, e.g. spec-
tacles, pencils, keys, etc. The seat belt
strap could be damaged and tear in an
accident and you or other vehicle occu-
pants could be injured.
R Only one person should use each seat
belt at any one time. Children must never
travel sitting on the lap of other occu-
pants. It would not be possible to restrain
the child in the event of a sudden change
in direction, braking or an accident. This
could result in severe or even fatal inju-
ries to the child and other occupants.
R Persons less than 1.50 m tall cannot
wear the seat belts correctly. For this
reason, secure persons less than 1.50 m
tall in specially designed, suitable
restraint systems.
R Children less than 1.50 m tall or under
12 years of age cannot wear the seat
belts properly. Therefore, always secure
these children in suitable child restraint Controls
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4 2008-10-17T11:22:31+02:00 - Seite 72Dateiname: 6515_1640_02_buchblock.pdf; preflight

Lights
77
while the ignition is switched off (ignition
key in position
0).
! Switch off the side lamps and parking
lamp when you leave the vehicle. This pre-
vents the battery from discharging.
Dipped-beam headlamps X
Turn the ignition key to position 2in the
ignition lock or start the engine.
X To switch on: turn the light switch to
B.
The B indicator lamp in the instrument
cluster lights up.
Constant headlamp mode In countries in which constant headlamp
mode is not a legal requirement, you can
make this a setting using the on-board com-
puter.
You can activate or deactivate "constant
headlamp mode" using the on-board com-
puter (Y
page 108).
X To switch on: turn the light switch to
M orU.
The dipped-beam headlamps are switched
on when the engine is running. i
When you turn the light switch to any
position other than MorU, the cor-
responding light goes on.
Automatic headlamp mode G
Risk of accident
If the light switch is set to the Ãposi-
tion, the light will not come on automati-
cally in foggy conditions. This could endan-
ger you and others. Therefore, turn the light
switch to Lin the dark or in fog.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehi-
cle's lighting at all times. G
Risk of accident
When it is dark or foggy, turn the light
switch from ÃtoL in good time.
Otherwise, the headlamps could switch off
temporarily and you could cause an acci-
dent.
X To switch on: turn the light switch to
U.
Key in position 1in the ignition lock: the
side lamp is switched on or off automati-
cally, depending on the brightness of the
ambient light. Starting the engine: the dipped-beam head-
lamps are also switched on or off automat-
ically, depending on the brightness of the
ambient light.
When the dipped-beam headlamps are
switched on, the
Bindicator lamp in the
instrument cluster lights up.
Front foglamps*/Rear foglamp G
Risk of accident
If you suspect that driving conditions will be
foggy, turn the light switch to Lbefore
you start your journey. Otherwise, your
vehicle may not be visible and you could
endanger yourself and others.
When the light switch is set to Uyou can-
not switch on the front* or rear foglamps.
X Turn the key to position 2in the ignition
lock.
X To switch on the front foglamps*: turn
the light switch to the BorC posi-
tion.
X Pull the light switch out to the first detent.
The ¥ green indicator lamp next to the
light switch lights up. Controls
* optional
245_AKB; 2; 7, en-GB
wdomann
,V ersion: 2.11.4
2008-10-17T11:22:31+02:00 - Seite 77 ZDateiname: 6515_1640_02_buchblock.pdf; preflight

Lights
78
X
To switch on the rear foglamp: turn the
light switch to BorC.
X On vehicles with front foglamps*, pull the
light switch out to the second detent.
On vehicles without front foglamps*, pull
the light switch out to the detent.
The † yellow indicator lamp next to the
light switch lights up.
X To switch off the front foglamps*/rear
foglamp: push in the light switch to the
stop.
The corresponding indicator lamp goes out. Combination switch (turn signals,
main-beam headlamps and headlamp
flasher)
Turn signal lamp
X
To switch on: press the combination
switch in the direction of arrow 2or?.
The corresponding turn signal indicator
lamp K orL in the instrument clus-
ter flashes.
i If you only wish to indicate a minor change
of direction, press the combination switch
briefly in the appropriate direction. The cor-
responding turn signal flashes three times. Main-beam headlamps X
Turn the ignition key to position 2in the
ignition lock or start the engine.
X Turn the light switch to BorU 9
.
X To switch on: press the combination
switch in the direction of arrow 1.
The A main-beam indicator lamp in the
instrument cluster lights up.
X To switch off: move the combination
switch back to its normal position.
The A main-beam indicator lamp in the
instrument cluster goes out.
Headlamp flasher X
To switch on: briefly pull the combination
switch in the direction of arrow =.
9 In the Uposition, the main-beam headlamps are only switched on when it is dark. Controls
* optional
245_AKB; 2; 7, en-GB
wdomann,
Version: 2.11.4
2008-10-17T11:22:31+02:00 - Seite 78 Dateiname: 6515_1640_02_buchblock.pdf; preflight