nition*, or your rearward-facing child
restraint system does not have automatic
child seat recognition, children must be
secured in a child restraint system on a
suitable seat in the rear. If you secure a
forward-facing child restraint system to the
front-passenger seat, you must move the
front-passenger seat as far back as possi-
ble.
R make sure there are no heavy or sharp-
edged objects in pockets of clothing.
R do not lean forwards, e.g. over the cover of
the driver's/front-passenger front airbag,
particularly when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel by the rim. This
allows the airbag to deploy fully. You could
be injured if the airbag is deployed and you
are holding the inside of the steering wheel.
R do not lean on the doors from inside the
vehicle.
R make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area of deployment of the
airbag.
R do not place any objects between the seat
backrest and the door.
R do not hang any hard objects, for example,
coat hangers, on the grab handles or coat
hooks.
R do not attach accessories, e.g. cup holders,
to the doors.
It is not possible to rule out a risk of injuries
caused by an airbag due to the high speed at
which the airbag is required to deploy. G
Risk of injury
The airbag's functionality can only be guaran-
teed if the following parts are not covered and
no badges or stickers are attached to them:
R padded steering wheel boss
R front-passenger front airbag cover
R outer side of seats G
Risk of injury
When an airbag deploys, a small amount of
powder is released. The powder may cause
short-term breathing difficulties to persons
suffering from asthma or other pulmonary
conditions.
In order to prevent potential breathing diffi-
culties, you should leave the vehicle as soon
as it is safe to do so. You can also open the
window to allow fresh air to enter the interior.
The powder generally does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. G
Risk of injury
The airbag parts are hot after the airbag has
been deployed. Do not touch them; other-
wise, you may burn yourself.
Have the airbags checked at a qualified spe-
cialist workshop. Otherwise, occupants are
not protected by the airbags in the event of
another accident.
Front airbags
The front airbags are designed to increase
protection for the driver's and front passeng-
er's head and chest. 38
Occupant safetySafety
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 38
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:16:44; WK
Driver's front airbag
:deploys in front of the
steering wheel; front-passenger front air-
bag ;deploys in front of and above the glove
compartment. They are deployed:
R at the start of an accident with a high rate
of vehicle acceleration or deceleration in a
longitudinal direction
R if the system determines that airbag
deployment can offer additional protection
to that provided by the seat belt
R if the seat belt is fastened
R independently of other airbags in the vehi-
cle
R if the vehicle overturns, but only if the sys-
tem detects high vehicle deceleration in a
longitudinal direction
On vehicles with automatic child seat recog-
nition in the front-passenger seat*, front-
passenger front airbag ;is only deployed if
the 4 PASSENGER AIRBAG OFF warning
lamp in the centre console is not lit
(Y page 43). This means that there is not a
child restraint system with automatic child
seat recognition* fitted to the front-
passenger seat or that a child restraint sys-
tem with automatic child seat recognition*
has been fitted to the front-passenger seat
incorrectly.
Sidebags G
Risk of injury
If you wish to use seat covers, Mercedes-Benz
recommends that, for safety reasons, you
only use seat covers that have been approved
for Mercedes-Benz vehicles.
The seat covers must have a special tear seam
for sidebags. Otherwise, a head/thorax side-
bag cannot deploy correctly and would fail to
provide the intended protection in the event
of an accident. Appropriate seat covers can
be obtained from a Mercedes-Benz Service
Centre. G
Risk of injury
Sensors to control the airbags are located in
the doors. Therefore, do not make any modi-
fications to the doors or door trim, e.g. retro-
fitting loudspeakers. Damage to the doors
can affect operation of the sidebags.
The purpose of sidebag deployment is to
enhance the level of protection for the thorax
(but not the head, neck or arms) of the vehicle
occupants on the side of the vehicle on which
the impact occurs. Front sidebags
:or rear-compartment side-
bags* ;deploy next to the outer seat cush-
ions. They are deployed:
R on the side on which an impact occurs
R at the start of an accident with a high rate
of lateral vehicle deceleration or accelera-
tion, e.g. in a side impact
R independently of the seat belt use
R independently of the front airbags
R independently of the belt tensioners
R if the vehicle overturns, but only if the sys-
tem detects high vehicle deceleration in a
lateral direction and determines that side-
bag deployment can offer additional pro-
tection to that provided by the seat belt
Windowbags
The purpose of the windowbags is to enhance
the level of protection for the head (but not
chest or arms) of the vehicle occupants on
the side of the vehicle on which the impact
occurs. Occupant safety
39Safety
* optional
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 39 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:16:44; WK
R
4ETS ( Electronic Traction Support)
R Distance warning function* (vehicles with
Distronic*)
i In wintry driving conditions, always use
winter tyres (M+S tyres) and if 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 particu-
larly 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 over-
ride the laws of physics.
For this reason, always adapt your driving
style to suit prevailing road and weather con-
ditions. 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. Pumping 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 vehi-
cle when braking and the braking distance
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 conditions.
Off-road ABS An ABS system specifically suited to off-road
terrain is activated automatically if the LOW
RANGE (Y
page 114) off-road gear is selec-
ted.
At speeds below 30 km/h, the front wheels
lock cyclically under braking. The resulting
digging-in effect reduces the stopping dis-
tance on off-road terrain. This limits steering
capability. 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. G
Risk of accident
If BAS has malfunctioned, the braking system
remains available with full brake boosting 50
Driving safety systemsSafety
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 50
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:16:48; WK
the trailer from swerving and will thus be
unable to reduce the risk of an accident. Trail-
ers with a high centre of gravity can tip over
before ESP ®
can detect this.
Trailer stabilisation does not work if ESP ®
is
deactivated or disabled because of a mal-
function.
Activating/deactivating ESP ®ESP
®
is activated automatically when the
engine is running.
It may be best to deactivate ESP ®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel G
Risk of accident
Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehicle
if the vehicle starts to skid or a wheel starts
to spin.
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability.
R the engine's torque is no longer limited and
the drive wheels can spin. Spinning of the
wheels results in a cutting action, which
provides better grip.
R traction control is still activated.
R ESP ®
still provides support when you
brake.
i If ESP ®
is deactivated and one or more
wheels start to spin, the dwarning lamp
in the instrument cluster flashes. In such
situations, ESP ®
will not stabilise the vehi-
cle. X
To deactivate: press button:.
The d warning lamp in the instrument
cluster lights up. G
Risk of accident
If the d warning lamp in the instrument
cluster is continuously lit when the engine is
running, ESP ®
is deactivated or not available
due to a malfunction. There is an increased
risk of your vehicle skidding in certain situa-
tions.
You should always adapt your driving style to
suit prevailing road and weather conditions.
X To activate: press button :.
The d warning lamp in the instrument
cluster goes out.
Off-road ESP ® An ESP
®
system specifically suited to off-road
terrain is activated automatically if the LOW
RANGE off-road gear (Y page 114) is selec-
ted. It intervenes with a delay if there is over-
steering or understeering, thus improving
traction. EBV (electronic brake force distribu-
tion)
EBV monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability when braking. 52
Driving safety systemsSafety
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 52
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:16:49; WK
Opening and closing
...........................58
Tailgate ................................................ 60
Key positions ....................................... 63
Seats .................................................... 64
Steering wheel .................................... 70
Mirrors ................................................. 72
Memory functions* .............................74
Seat belts ............................................. 75
Lights ................................................... 78
Windscreen wipers .............................84
Side windows ...................................... 85
Driving and parking ............................88
Transmission ....................................... 91
Instrument cluster ..............................96
On-board computer .............................97
Off-road driving ................................. 112
Driving systems ................................ 117
Air conditioning ................................. 136
Sliding sunroof .................................. 149
Loading and stowing ........................151
Features ............................................. 161 57Controls
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 57
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:16:51; WK
X
Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the required ventilation level is set.
i If you open the side windows and the slid-
ing/tilting sunroof* using the key
(Y page 87), the seat ventilation of the
driver's seat automatically switches to the
highest level.
X To switch off: press button:repeatedly
until all indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off. Seat heating*
The three red indicator lamps in the button
indicate the heating level you have selected. Driver's and front-passenger seat
Rear-compartment seats i
The system automatically switches down
from level 3to level 2after approximately
five minutes.
The system automatically switches down
from level 2to level 1after approximately
ten minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off. Steering wheel
Points to remember
Depending on the vehicle equipment, you can
adjust the steering wheel either manually or
electrically*. G
Risk of injury
The electrically adjustable steering wheel*
can be adjusted when the key is removed
from the ignition lock. Therefore, do not leave
children unsupervised in the vehicle as they
could become trapped as the steering wheel
is adjusted. G
Risk of accident
Only adjust the steering wheel when the vehi-
cle is stationary and do not pull away until the
steering wheel adjustment mechanism is
locked in position. Otherwise, you might drive
without the steering wheel adjustment mech-
anism being locked in position and be distrac-
ted from road and traffic conditions by an
unexpected movement of the steering wheel
and cause an accident. 70
Steering wheelControls
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 70
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:02; WK
However, the steerability of the vehicle is not
affected.
When you adjust the steering wheel, make
sure that:
R the steering wheel can be reached with
your arms slightly bent
R you can move your legs freely
R you can see all the displays in the instru-
ment cluster clearly Adjusting the steering wheel man-
ually
:
Release handle
; Height adjustment
= Fore-and-aft adjustment
X Pull handle :out completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push handle :in completely until it
engages fully.
The steering wheel is locked in position. Adjusting the steering wheel electri-
cally*
:
Fore-and-aft adjustment
; Height adjustment
You can find more information under:
R EASY-ENTRY/EXIT feature (Y page 72)
R storing settings (Y page 74) Steering wheel heating*
X
To switch on or off: make sure that the
key is in position 2in the ignition lock.
X Turn the lever in direction of arrow :
or ;.
Indicator lamp =lights up or goes out.
i The steering-wheel heating does not
switch off automatically. Steering wheel
71Controls
* optional
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 71 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:02; WK
Easy-entry/exit feature*
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
The steering wheel swings upwards when
you:
R remove the key from the ignition lock
R open the driver's door when the key is in
position 0or 1in the ignition lock
When the key is inserted into the ignition lock
with the driver's door closed, the steering
wheel is automatically moved to the previ-
ously set position. G
Risk of injury
Make sure that nobody can become trapped
when you activate the easy-entry/exit fea-
ture.
If there is a risk of becoming trapped, stop the
adjustment procedure. To halt the procedure:
R press the steering-column adjustment
switch
R press one of the memory function position
buttons
The steering column stops moving immedi-
ately.
Never leave children unsupervised in the vehi-
cle. They could open the driver's door and
thereby unintentionally activate the easy-
entry feature and become trapped.
The most recent position of the steering
wheel is stored when you switch off the igni-
tion or when you store a memory position
(Y page 74).
You can activate and deactivate the EASY-
ENTRY/EXIT feature via the on-board com-
puter (Y page 108).
i The crash-responsive EASY-EXIT fea-
ture* can only be activated after an acci-
dent if the EASY-ENTRY/EXIT feature is
activated in the on-board computer.
When the crash-responsive EASY-EXIT fea-
ture is triggered in an accident, the steering
wheel column will move upwards irrespec- tive of the position of the key in the ignition
lock. This makes it easier to exit the vehicle
or rescue the occupants. Mirrors
Rear-view mirror
X Adjust the rear-view mirror by hand so you
have a good overview of the traffic condi-
tions.
Rear-view mirror (manual anti-dazzle) X
Anti-dazzle mode: flick anti-dazzle
switch :forwards or back. Exterior mirrors
G
Risk of accident
The exterior mirrors reduce the size of the
image. Objects are actually closer than they
appear. You could misjudge the distance from
vehicles driving behind and cause an acci-
dent, e.g. when changing lane. For this rea-
son, make sure of the actual distance from the
vehicle driving behind by glancing over your
shoulder.
The convex exterior mirrors provide a larger
field of vision.
At low outside temperatures, the exterior mir-
rors are heated automatically. 72
MirrorsControls
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 72
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:03; WK