R
only use aforward-facin gchild restraint
system on the front-passenger seat and
move the front-passenger seat to the rear-
most position.
R have the automatic child seat recognition
checked at aqualified specialist workshop.
To ensure that the automatic child seat rec-
ognition on the front-passenger seat func-
tions/communicates correctly, never place
objects, e.g. acushion, 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. G
WARNING
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 can lead to a
system malfunction. This may cause the
4 PASSENGER AIRBAG OFF indicator
lamp to light up without there being achild
seat with transponders for automatic child
seat recognition fitted. The front-passenger
airbag will not then deploy during an accident.
It is also possible that the 6SRS warning
lamp lights up and/or the 4PASSENGER
AIRBAG OFF indicator lamp does not light up
briefly when you turn the key in the ignition
lock to position 2. If your vehicle does not have automatic child
seat recognition on the front-passenger seat,
this is indicated by
aspecial sticker. The
sticker is affixed to the side of the dashboard
on the front-passenger side. The sticker is
visible when you open the front-passenger
door.
Vehicles without automatic child seat recog-
nition on the front-passenger seat: when you
turn the key to position 2inthe ignition lock,
the 4 PASSENGER AIRBAG OFF indicator
lamp lights up briefly, but does not have any
function. It does not indicate that there is
automatic child seat recognition on the front-
passenger seat. The front-passenger seat sensor system for
child restraint systems detectsw
hether a
special Mercedes-Ben zchild seat with a
transponder for automatic child seat recog-
nition has been fitted. In this case, 4
PASSENGER AIRBAG OFF indicator lamp :
lights up. The front-passenger front airbag is
disabled. Children in the vehicle
55Safety Z
Order num-
ber
(A 000 ...)
970 18 00 970 19 00
Automatic
child seat
recognition
Yes No
Suggested "Universal" category ISOFIX
child restraint systems:
Carry-cot weight category Size categories
F, G
Manufacturer
–
Type
–
Approval number
(E1 ...)
–
Order number
–
Automatic child
seat recognition
–
Category 0: up to 10 kg
Size category
E
Manufacturer
–
Type
–
Approval number
(E1 ...)
–
Order number
–
Automatic child
seat recognition
–
Category 0+: up to 13 kg
Size catego-
ries
E D, C
Manufac-
turer
Britax Römer –
Type
BABYS
AFE
ISOFIX PLUS – Approval
number
(E1 ...)
04 301146 –
Order num-
ber
B6
686
8224 –
Automatic
child seat
recognition
No –
Category I:
9to18kg Size categories
D, C, B, A
Manufacturer
–
Type
–
Approval number
(E1 ...)
–
Order number
–
Automatic child
seat recognition
–
Size category
B1
Manufacturer
Britax Römer
Type
DUO PLUS
Approval number
(E1 ...)
03 301133
04 301133
Order number
A0009
70 11 00 Automatic child
seat recognition
Yes
Child-proof locks
Important safety notes G
WARNING
Activate the child-proof locks for the rear
doors and the override switch for the rear
windows when children are travellin ginthe
vehicle. Otherwise, the children could open Children in the vehicle
61Safety
Z
doors or side windows while the vehicle is in
motion and injure themselves or others. G
WARNING
Do not leave children unsupervised in the
vehicle, even if they are secured in achild
restraint system. They could injure them-
selves on parts of the vehicle. They could also
be seriously or even fatally injured by pro-
longed exposure to extreme heat or cold.
Do not expose the child restraint system to
direct sunlight .Part soft hechild restraint sys-
te mc ould heat up and the child could burn
herself/himself on them.
If ac hild opens adoor, the child or other per-
sons could be injured as aresult. They could
get out and injure themselves or be injured by
ap assing vehicle.
Also observe the notes on HOLD.R elevant
information can be found in the index.
Child-proof locks for the rear doors You secure each door individually with the
child-proof locks on the rear doors.
Adoor
secured with achild-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
X To activate: press the child-proof lock
lever up in the direction of arrow :.
X Make sure that the child-proof locks are
working properly.
X To deactivate: press the child-proof lock
lever down in the direction of arrow ;.Overrid
efeature for the rear side win-
dows X
To activate/deactivate: press button;.
If indicator lamp :is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driv-
er's door. If indicator lamp :is off, oper-
ation is possible using the switches in the
rear compartment. Driving safety systems
Driving safety systems overview
In this section ,you will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y page 63)
R BAS (Brake AssistSystem) (Y page 63)
R BAS PLUS(Brake AssistSystem PLUS)
(Y page 64)
R Adaptive brake lamps (Y page 65)
R ESP ®
(Electronic StabilityProgram)
(Y page 65)
R EBD ( electronic brake force distribution)
(Y page 68)
R ADAPTIVE BRAKE (Y page 68)
R PRE-SAFE ®
Brake (Y page 68) Important safety notes
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can 62
Driving safety systemsSafety
neither reduce the ris
kofaccident nor over-
rid ethe laws of physics .Driving safety sys-
tems are merel yaidsd esigned to assist driv-
ing. You are responsible for the distance to
the vehicl einfront, for vehicl espee dand for
braking in good time. Always adapt yourd riv-
ing style to suitt he prevailing road and
weather conditionsa nd maintainasafe dis-
tance from the vehicle in front.D rive care-
fully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tyres and
the road surface. Please pay special atten-
tion to the notes on tyres, recommended
minimum tyre tread depths, etc.
(Y page 328).
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. ABS (Anti-lockB
raking System)
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 62). G
WARNING
If ABS is faulty, the wheels could lock when
braking .The steerability and braking charac-
teristics may be severely impaired. Addition-
ally,f urther driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at aqualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Y page 261) and
displaym essages which may be shown in the
instrumentc luster (Ypage 232). ABS regulates brake pressure in such
away
that the wheels do not lock when you brake.
This allowsy ou to continue steering the vehi-
cle when braking.
ABS works from aspeed of about 8km/h
upwards, regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently.
The yellow !ABS warning lamp in the
instrumentc lusterlight supw hen the ignition
is switched on. It goes out when the engine is
running.
Brakes X
If ABS intervenes: continue to depressthe
brak epedal with force until the braking sit-
uation is over.
X To make afull brake application:
depres sthe brak epedal with full force.
If AB Sintervene swhenb raking ,you will feel
ap ulsi ng in the brake pedal.
The pulsating brake peda lcan be an indica-
tio nofh azardous road condition sand func-
tions as areminder to tak eextra carew hile
driving. BAS (Brak
eAssist System)
i Observ ethe "Important safety notes" sec-
tio n(Ypage 62). G
WARNING
If BA Sism alfunctioning, the braking distance
in an emergency braking situation is
increased. There is arisk of accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automaticallyb oosts the braking force,
thus shortening the stopping distance.
The brakes will function as usualo nce you
release the brake pedal.B AS is deactivated. Dr
ivin gsafety systems
63Safety Z
BAS PLUS (Brak
eAssis tSystem Plus)
i Observ ethe "Important safety notes "sec-
tio n(Ypage 62).
BAS PLU Sisonly available on vehicles with
DISTRONIC PLUS.
BAS PLUS provides braking assistance in haz-
ardous situations at speeds greater than
7k m/h and uses rada rsensor technology to
assess the traffic situation.
With the help of the radar sensor system, BAS
PLUS can detec tobstacles that are in the
path of your vehicle for an extended period of
time.
At speeds up to approximately 70 km/h, BAS
PLUS may also detect stationar yobstacles,
for example, stopped or parked vehicles.
To prevent afront-end collision, BAS PLUS
calculates the brake force necessary if:
R yo ua pproach an obstacle, and
R BAS PLUS ha sdetected arisk of collision
If you ar edriving at aspeed over
30 km/h:ify ou depress the brake sharply,
BAS PLUS automatically raises the brake
pressure to avalue adapted to the traffic sit-
uation.
If you are driving at aspeed under
30 km/h:ify ou depress the brake, BAS PLUS
is activated. Brakin gwill be carried out at the
last possible moment.
If BAS PLUS demands particularly high brak-
ing force, preventative passenger protection
measures (PRE-SAFE ®
)a re activated simul-
taneously.
X Keep the brake pedal depressed until the
emergenc ybraking situation is over.
ABS prevent sthe wheels from locking.
BAS PLUS is deactivated and the brakes func-
tion as usual,i f:
R you release the brake pedal.
R there is no longer any danger of arear-end
collision.
R no obstacle is detected in front of your
vehicle. The radar sensor system is switched off auto-
matically in the vicinit
yofradio telescope
facilities in the following vehicles:
R vehicles with COMAND Online and naviga-
tion
R vehicles with Audio 20 and Becker ®
MAP
PILOT
Becker ®
MAP PILOT must be connected;
see the separate operating instructions.
The radar sensor system must be switched off
using the on-board computer in the vicinit yof
radio telescope facilities in the following vehi-
cles:
R vehicles without COMAND Online and nav-
igation
R vehicles without Audio 20 and Becker ®
MAP PILOT
R vehicles for Australia
For information on switching off the radar
sensor system using the on-board computer,
see (Y page 225).
For BAS PLUS to assist you when driving, the
radar sensor system must:
R be switched on (Y page 225)
R be operational (Y page 245)
If the radar sensor system is malfunctioning,
BAS PLUS will not be available. The brake
system is still available with complete brake
boosting effect and BAS. G
WARNING
BAS PLUS cannot alwaysc learly identify
object sand complex traffic situations. BAS
PLUS cannot intervene in these cases. There
is ar isk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R snow or heavy rain
R interference by other radar sources 64
Driving safety systemsSafety
driver who is able to cope with these critical
drivin
gconditions.
X To activate: briefly press button :.
The å ESP®
OFF warning lamp in the
instrument cluster goes out. The ÷ON message appears in the multifunction dis-
play.
ESP ®
is activated automatically when the
engin eisstarted.
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in
the instrument cluster does not flash. In such
situations, ESP ®
will not stabilise the vehicle.
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
If you deactivate ESP ®
:
R ESP ®
no longer improves drivin gstability.
R traction contro lisstill activated.
R PRE-SAFE ®
is no longer available; nor is it
activated if you brake firmly and ESP ®
inter-
venes.
R PRE-SAFE ®
Brak eisnol onger available; it
is also not activated if you brake firmly and
ESP ®
intervenes.
R ABSs tillp rovide ssuppo rt when yo ubrake.
R engine torque is no longe rlimited and the
drive wheels are able to spin .The spinning
of the wheels results in acuttin gaction for
better traction.
Vehicles with ECO start/stop function: the
ECO start/stop function switches the engine
off automatically when the vehicle comes to
as top. When pulling away again, the engine
starts automatically .ESP ®
remains in its pre-
viously selected status. Example :ifESP®
was
deactivate dbefore the engine wa sswitched
off, ESP ®
remains deactivate dwhent he
engine is switche donagain. EBD (electroni
cbrake forc edistribu-
tion)
i Observe the "Importan tsafet ynotes "sec-
tio n(Ypage 62). G
WARNING
If EB Dhas malfunctioned ,the rear wheels can
still lock, e.g .unde rfull braking .This increa-
ses the risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at aqualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (Y page 261) as well as dis-
play messages (Y page 234).
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking. ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort.Ina ddi-
tion to the brakin gfunction ,ADAPTIVE BRAKE
also ha sthe HOLD functio n(Ypage 179 )and
hill start assist (Y page 144). PRE-SAFE
®
Brake
i Observ ethe "Important safety notes "sec-
tio n(Ypage 62).
PRE-SAFE ®
Brake is onl yavailable in vehicles
with DISTRONI CPLUS.
PRE-SAFE ®
Brake can hel pyou to minimise
the ris kofacollision with avehicle ahea dor
reduce the effects of such acollision. If PRE-
SAFE ®
Brake detects ariskofc ollision, you
will be warned visually and acoustically as
well as by automatic braking. PRE-SAFE ®
Brake cannot prevent acollision without your
intervention. 68
Driving safety systemsSafety
In particular, the detection of obstacle
scan
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R snow or heavy rain
R interference by other radars ources
R the possibility of strongr adar reflections,
for example, in multi-storey car parks
R an arrow vehicle travelling in front,e .g. a
motorcycle
R av ehicle travelling in front on adifferent
line G
WARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossin gtraffic
R when cornering
As aresult, PRE-SAFE ®
Brake may neither
give warnings nor intervene in all critical sit-
uations. There is arisk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent acol-
lision, you must apply the brakes yourself.
X To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brake in the on-board
computer (Y page 219).
When PRE-SAFE ®
Brake is activated, the
Ä symbol appears in multifunction dis-
play, as long as the HOLD function is deac-
tivated (Y page 179). On vehicles with the
Active Parking Assist driving system, the
Ä symbol is displayed when position P
is engaged or you are driving faster than
35 km/h.
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on (Y page 225) and be opera-
tional. The radar sensor system is switched off auto-
matically in the vicinit
yofradio telescope
facilities in the following vehicles:
R vehicles with COMAND Online and naviga-
tion
R vehicles with Audio 20 and Becker ®
MAP
PILOT
Becker ®
MAP PILOT must be connected;
see the separate operating instructions.
The radar sensor system must be switched off
using the on-board computer in the vicinit yof
radio telescope facilities in the following vehi-
cles:
R vehicles without COMAND Online and nav-
igation
R vehicles without Audio 20 and Becker ®
MAP PILOT
R vehicles for Australia
For information on switching off the radar
sensor system using the on-board computer,
see (Y page 225).
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at aqualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle. Anti-theft systems
Immobiliser
X To activat ewith th ekey: remove th ekey
fro mt heignitio nlock.
X To activat ewith KEYLESS-GO: switch the
ignitio noff and open the driver's door.
X To deactivate: switch on the ignition.
The immobiliser prevents you rvehicle from
being started without the correct key.
When leaving the vehicle, alway stake the key
with you and lock the vehicle. Anyone can
start the engin eifavalid key has been left
inside the vehicle. 70
Anti-theft systemsSafety
i
The immobiliser is alway sdeactivated
when you start the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm sys-
tem is primed after approximately
15 seconds.
X To switch off: unlock the vehicle with the
key or KEYLESS-GO.
Av isual and audible alarm is triggere difthe
alarm system is prime dand you open:
R ad oor
R the vehicle with the emergency key ele-
ment
R the boot lid
R the bonnet
X To turn th ealarmo ff with th ekey: press
the % or& button on th ekey.
The alarm is switche doff.
or
X Insert th ekey int othe ignitio nlock.
The alarm is switche doff.
X To stop th ealarm using KEYLESS-GO:
grasp th eoutside door handle. The key
must be outside th evehicle.
The alarm is switche doff.
or
X Pres sthe Start/Sto pbutton on th edash-
board. The key must be inside th evehicle.
The alarm is switche doff. The alarm is not switche
doff,e ven if you
clos ethe open door that has triggered it, for
example. Tow-away protection
Function An audible and visual alarm is triggered if your
vehicle'
sangle of inclination is altered while
tow-away protection is primed. This can occur
if th evehicle is jacked up on one side, for
example.
Activating X
Make sure that:
R
thed oor sare closed.
R theb oot lid is closed.
Only then is th etow -away protection
primed.
X Loc kthe vehicle with th ekey or KEYLESS-
GO.
Tow-away protection is primed after
approximately 30 seconds.
To deactivate X
To switch off: unlockthe vehicle with the
key or KEYLESS-GO.
Tow-away protection is switched off auto-
matically.
Deactivating Anti-theft systems
71Safety Z