
The automatic child seat recognition sensor
system on the front-passenger seat detects
whether a special Mercedes-Benz child seat
with automatic child seat recognition has
been fitted. In such cases, 4PASSENGER
AIRBAG OFF warning lamp :lights up. The
front-passenger front airbag is disabled. G
Risk of injury
If the 4 PASSENGER AIRBAG OFF warning
lamp does not light up when the child restraint
system is fitted, the front-passenger front air-
bag has not been disabled. If the front-
passenger front airbag is deployed, the child
could be seriously or even fatally injured.
Proceed as follows:
R do not use a rearward-facing child restraint
system on the front-passenger seat.
R fit a rearward-facing child restraint system
on a suitable rear seat.
or
R only use a forward-facing child restraint
system on the front-passenger seat and
move the front-passenger seat to its rear-
most position.
R have the automatic child seat recognition
checked at a qualified specialist workshop.
To ensure that the automatic child seat rec-
ognition on the front-passenger seat func-
tions/communicates correctly, never place
objects (such as a cushion) under the child
restraint system. The entire base of the child restraint system must always rest on the seat
cushion. An incorrectly fitted child restraint
system cannot perform its intended protec-
tive function in the event of an accident, and
could lead to injuries.
i The windowbag, the sidebag and the belt
tensioner on the front-passenger side are
still active even if the front-passenger front
airbag is disabled by the automatic child-
seat recognition on the front-passenger
seat. G
Risk of injury
Do not place electronic devices on the front-
passenger seat, e.g.:
R laptops, when switched on
R mobile phones
R cards with transponders, e.g. ski passes or
access cards
Signals from electronic equipment can cause
interference in the automatic child seat rec-
ognition sensor system. This could lead to a
system malfunction. This may cause the
4 PASSENGER AIRBAG OFF warning lamp
to light up without there being a child seat
with automatic child seat recognition fitted.
This means that the front-passenger front air-
bag will not deploy during an accident. It is
also possible that the 6SRS warning lamp
lights up and/or the 4PASSENGER AIR-
BAG OFF warning lamp does not light up
briefly when you turn the key in the ignition
lock to position 2.
Suitable seat positions for child restraint
systems
i Vehicles with a folding bench seat in the
load compartment* (Estate): information
on child restraint systems on the folding
bench seat can be obtained at any
Mercedes-Benz Service Centre. 46
Occupant safetySafety
* optional
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or damaged. For instance, this may occur
when you close the doors, adjust the seat,
stow away the padded table* and the side
head restraints or transport heavy items.
R replace the integrated child seat, the pad-
ded table* and the side head restraints if
these were damaged or subjected to heavy
loads during an accident.
R bear in mind that children weighing less
than 12.5 kg require a different child
restraint system. Information about other
child restraint systems is available from any
Mercedes-Benz Service Centre.
R the rear seat backrest in the vehicle must
be securely locked in position. Example: Saloon
:
Side head restraints
; Seat belt guide
= Integrated child seat
? Release handle
Folding out the child seat
X Pull release handle ?forwards.
X Push integrated child seat =upwards and
back until it engages. Fastening a child's seat belt G
Risk of injury
To reduce the risk of serious or even fatal
injury to the child in the event of a sudden
change in direction, braking or an accident:
R the shoulder section of the seat belt must
be routed across the middle of the child's
shoulder – never across the child's neck –
and must be pulled tight against the child's
chest. The lap section of the seat belt must
be routed across the child's pelvis – not
across the abdomen – and must be pulled
tight against the child's body. Retighten the
belt strap if necessary.
R never secure more than one child at a time
in the child restraint system.
R the belt strap must not be trapped or twis-
ted, nor rub against any sharp edges.
R if you have not installed the side head
restraint, the standard head restraint must
always be set correctly when driving with a
child in the integrated child seat. This
means that the back of the head must be
supported by the centre of the head
restraint at about eye level.
Also observe the assembly instructions for
the padded table* and the additional warn-
ings and information about risk of injury.
X Pull the belt smoothly from the inertia reel.
X Engage the belt tongue in the buckle.
X If you are using integrated child seat =
without the padded table*, make sure that
the belt:
R is routed as low as possible across the pel-
vic area, in front of the hips
R is tightened across the lap by pulling
upwards on the child's shoulder belt
R is tight and is routed across the middle of
the child's shoulder
R is not twisted and does not pass across the
child's neck or under the child's arm
X Adjust the head restraint (Y page 79).54
Occupant safetySafety
* optional
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G
Risk of injury
Ensure that:
R the belt is routed as described below.
R the belt is not twisted.
R the padded table is close to the child's
body.
R the belt strap is not trapped or twisted and
does not rub against any sharp edges.
Otherwise, it would not be possible to restrain
the child in the event of an accident, sudden
braking or abrupt change in direction and this
could result in serious or even fatal injury to
the child.
X Pull the belt smoothly from the inertia reel.
X Attach the lower and upper sections of the
belt in left seat belt guide point =.
X Guide both sections of the belt to right seat
belt guide point =and attach.
X Engage the belt tongue in the buckle.
X Slide padded table ;close to the child's
body.
X Pull both parts of the belt tight. Ensure that
the belt is not twisted.
X Adjust the head restraint ( Ypage 79).
Side head restraints for the integrated
child seat* Use the side head restraints according to the
specifications in the table (Y page 53).
i Should another side head restraint be
required for the second integrated child
seat*, they can be ordered at any
Mercedes-Benz Service Centre. Example: Saloon
Fitting side head restraints
G
Risk of injury
If you do not secure the side head restraint at
the anchor points intended, it cannot provide
the intended level of protection. It would then
not be possible to protect the child in the
event of an accident, sudden braking or
abrupt change in direction and this could
result in serious or even fatal injury to the
child.
Only attach the side head restraint to the
intended anchor points on the rear head
restraint.
For safety reasons, Mercedes-Benz recom-
mends that you only use side head restraints
which have been approved by Mercedes-Benz
for your vehicle.
X Slide head restraints ;upwards and posi-
tion them upright.
X Slide side head restraints Bfrom the front
to the centre of both head restraint bars
until they engage.
Right-hand and left-hand lock verification
indicators =must be folded in. The red
surfaces should no longer be visible.
X Make sure that side head restraint Bis
engaged in both head restraint bars.
X Slide head restraints ;downwards
(Y page 79) until they rest on the upper
edge of side head restraints B.56
Occupant safetySafety
* optional
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R
interference by other radar sources
R strong radar reflections, for example in
multi-storey garages
BAS PLUS does not react to people or ani-
mals, oncoming vehicles and crossing traffic.
BAS PLUS may not detect narrow vehicles
such as motorcycles and vehicles driving on
a different line.
Following a collision or crash-related damage
to the front end of the vehicle, have the con-
figuration and operation of the radar sensors
checked at a Mercedes-Benz Service Centre.
If BAS PLUS is not available due to a malfunc-
tion in the radar sensor system, the braking
system remains available with full brake
boosting effect and BAS. 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
or BAS PLUS *,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 (Y page 96).ESP
®
(Electronic Stability Program)
ESP ®
monitors driving stability and traction,
i.e. power transmission between tyres and
the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilise the vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
assists
the driver when pulling away on wet or slip-
pery roads. ESP ®
can also stabilise the vehi-
cle during braking.
When ESP ®
intervenes, the äwarning
lamp flashes in the instrument cluster. G
Risk of accident
If the ä warning lamp in the instrument
cluster flashes, proceed as follows:
R do not deactivate ESP ®
under any circum-
stances.
R only depress the accelerator pedal as far as
necessary when pulling away.
R adapt your driving style to suit the prevail-
ing road and weather conditions.
Otherwise, the vehicle could skid.
ESP ®
cannot reduce the risk of an accident if
you drive too fast. ESP ®
cannot override the
laws of physics.
! If the vehicle is to be towed with the front
or rear axle raised, the ignition must be
switched off (key in position 0or 1in the
ignition lock). Application of the brakes by
ESP ®
could otherwise destroy the brake
system on the front or rear axle.
! Vehicles with 4MATIC* may not be towed
with the front or rear axle raised.
i Only use wheels with the recommended
tyre sizes. Only then will ESP ®
function
properly.
ESP ®
trailer stabilisation If your trailer begins to lurch, you can only
stabilise the vehicle/trailer combination by
depressing the brake firmly.
In this situation, ESP ®
assists you and can
detect when the trailer begins to lurch.
ESP ®
slows the vehicle down by braking and 60
Driving safety systemsSafety
* optional
212_AKB; 2; 4, en-GB
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G
Risk of accident
If, in a critical driving situation, you do not
receive a visual and acoustic warning:
R PRE-SAFE ®
Brake did not detect the risk of
a collision
R PRE-SAFE ®
Brake is switched off
R PRE-SAFE ®
Brake has failed
You must then brake to avoid a collision.
X To activate: activate PRE-SAFE ®
Brake in
the on-board computer (Y page 130).
The Ä symbol appears in the lower
multi-function display, as long as the HOLD
function is not activated (Y page 151).
On vehicles with parking guidance*, drive
range Pmust be engaged for the symbol to
be displayed.
The radar sensors are automatically deacti-
vated in the vicinity of radio telescope facili-
ties (Y page 362).
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on and operational.
PRE-SAFE ®
Brake does not always detect
complex traffic situations properly. You can
terminate the braking action of PRE-SAFE ®
Brake in a non-critical driving situation at any
time if:
R an acoustic and visual warning occurs
R the vehicle brakes
To end this you can either depress the accel-
erator pedal further, activate kickdown or
release the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you manoeuvre to avoid the obstacle.
R you drive slower than approximately
15 km/h.
R there is no longer an obstacle detected in
front of your vehicle.
R there is no longer any danger of a collision. Following a collision or crash-related damage
to the front end of the vehicle, have the con-
figuration and operation of the radar sensors
checked. Choose a qualified specialist work-
shop for this which has the necessary spe-
cialist knowledge and tools for the work
required. Mercedes-Benz recommends that
you use a Mercedes-Benz Service Centre for
this purpose.
Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
Activating the immobiliser X
With the key: remove the key from the
ignition lock.
X With KEYLESS GO*: press the start/stop
button on the dashboard.
The engine switches off.
Deactivating the immobiliser X
With the key: turn the key to position 2in
the ignition lock.
X With KEYLESS GO*: press the start/stop
button on the dashboard twice without
depressing the brake.
i The immobiliser is always deactivated
when you start the engine. ATA* (anti-theft alarm system)
A visual and audible alarm is triggered when
the alarm system is primed and you open:
R a door
R a door or the boot lid with the emergency
key element
R the boot lid/tailgate
R the bonnet Anti-theft systems
65Safety
* optional
212_AKB; 2; 4, en-GB
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Seats
Points to remember
You will find information about folding the
rear bench seat forwards in the "Through-
loading feature in the rear bench seat"
(Saloon) (Y page 195) and "EASY-PACK load-
ing-aid feature rear bench seat (Estate)"
(Y page 196) sections.
Depending on the vehicle's equipment, the
seats can adjusted either manually/electri-
cally or electrically*. G
Risk of injury
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could become trapped when
adjusting a seat. G
Risk of accident
Only adjust the driver's seat when the vehicle
is stationary. You will otherwise be distracted
from the road and traffic conditions and you
could lose control of the vehicle as a result of
the seat moving. This could cause an acci-
dent. G
Risk of injury
Make sure that nobody can become trapped
when you adjust the seat.
Observe the notes concerning the airbag sys-
tem.
Secure children as recommended; see "Chil-
dren in the vehicle" section. 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 correctly
adjusted and engaged head restraint.
! When you move the seats, make sure that
there are no objects in the footwell or behind the seats. Otherwise, you could
damage the seats and the objects.
i The head restraints in the front seats are
fitted with the NECK-PRO system
(Y page 43). For this reason, it is not pos-
sible to remove the head restraints from
the front seats.
The head restraints cannot be removed
from the rear compartment seats on vehi-
cles without the through-loading feature*.
Please contact a Mercedes-Benz Service
Centre for more information. Adjusting the seats manually and
electrically Seat fore-and-aft adjustment
X
Lift handle ?and slide the seat forwards
or backwards.
X Release handle ?again.
Make sure that you hear the seat engage
into position.
Backrest angle X
Slide the button forwards or back in the
direction of arrow =.76
SeatsControls
* optional
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G
Risk of injury
A dirty or damaged seat belt or a seat belt that
has been subjected to a load in an accident
or which has been modified no longer offers
the intended level of protection. Under certain
circumstances, this could cause severe or
even fatal injuries.
For this reason, check regularly that the seat
belts are not damaged or dirty.
Always have damaged seat belts or seat belts
that have been subjected to a load in an acci-
dent replaced at a qualified specialist work-
shop. Consult a qualified specialist workshop
which has the necessary specialist knowledge
and tools to carry out the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat belts which have
been approved by Mercedes-Benz for your
vehicle. Example: Saloon
Fastening the belt
X
Adjust the seat and move the backrest to
an almost vertical position (Y page 76).
X Pull the belt smoothly through belt sash
guide :. X
Route the belt over the centre of the shoul-
der without twisting it.
X Engage belt tongue ;in buckle =.
Seat belt adjustment: if necessary, the driv-
er's and front-passenger seat belts auto-
matically adjust to the upper body
(Y page 90).
X If necessary, adjust the belt to the appro-
priate height (Y page 91).
X If necessary, pull upwards on the shoulder
section of the belt to tighten the belt across
your body.
Seat-belt adjustment The belt adjustment function adjusts the driv-
er's and front-passenger seat belt to the
upper body of the occupants. The belt strap
is tightened slightly when:
R
you engage the belt tongue in the buckle
and then turn the key to position 2in the
ignition lock.
R the key is in position 2in the ignition lock
and you then engage the belt tongue in the
buckle.
The seat-belt adjustment will apply a certain
tightening force if any slack is detected
between the occupant and the belt sash. The
belt should not be held during the adjust-
ment. You can switch the belt adjustment on
and off in the on-board computer
(Y page 136).
Wearing the rear centre seat belt If the left-hand rear seat backrest is folded
down and back up again, the rear centre seat
belt may lock. Then, the seat belt cannot be
pulled out.
X To release the rear centre seat belt: pull
the seat belt out at the belt outlet on the
rear centre seat backrest approximately
20 mm and then release it again.
The seat belt is retracted and released. 90
Seat beltsControls
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It should:
R
fit snugly across your body.
R be routed across the middle of your
shoulder.
R be routed in your pelvic area across the
hip joints. Lights
Exterior lighting
Notes on the exterior lighting For safety reasons, Mercedes-Benz recom-
mends that you drive with the lights switched
on even during the daytime. In some coun-
tries, daytime operation of headlamps varies
due to legal and voluntary requirements. In
these countries, daytime driving lights are
automatically switched on when the engine is
started.
The exterior lighting (except the side lamp/
parking lamp) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver's door with the ignition
turned off (key in position 0in the ignition
lock).
! Switch off the side lamps and parking
lamp when you leave the vehicle. This pre-
vents the battery from discharging. Information about driving abroad Converting to symmetrical dipped beam
when driving abroad:
switch the headlamps
to symmetrical dipped beam in countries in
which traffic drives on the opposite side of the
road to the country where the vehicle is reg-
istered. This prevents oncoming traffic from
being dazzled.
Have the headlamps converted at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre, as close to the border as pos-
sible before driving in these countries. Sym-
metrical lights do not illuminate as large an
area of the edge of the carriageway.
Converting to asymmetrical dipped beam
after returning: have the headlamps conver-
ted back to asymmetrical dipped beam at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre, as soon as
possible after crossing the border when
returning.
Vehicles with Intelligent Light System*: if
the headlamps are converted to symmetrical
dipped beam, not all light functions are avail-
able. "Motorway mode" and the "extended
range foglamps" are deactivated
(Y page 133). Lights
93Controls
* optional
212_AKB; 2; 4, en-GB
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