2011 MERCEDES-BENZ M-CLASS SUV key

PRE-
SAFE®
inte rvenes:
R in emergenc ybraking situations ,e.g. if BAS
is activated or for vehicles with DISTRONIC
PLUS, BAS PLUS intervenes powerfully
R if the radar senso rsystem detects an immi-
nent dange rofcollision in cer tain situa-
tions (on vehicles with DISTRONIC PLUS)
R in critical drivin gsituations, e.g. when phys-
ical limits are exceed and the vehicle under-
steers or oversteers severely
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the fron tseat belts are pre- tensio ned.
R vehicles with the memory fun ction :it
adjust sthe front-pas senger seat if it is in
an unfavourable position.
R if th evehicle skids, th eslidin gsunroof/
panoram aslidin gsunroof and th eside win-
dows are closed so tha tonly asmall gap
remains.
If th ehazardous situatio npasses without
resulting in an accident ,PRE-SAFE ®
slackens
the belt pretensioning. All settings made by
PRE-SAFE ®
can then be reversed.
If the seat belts are not released:
X Move the backrest or seat back sligh tly, but
only when the vehicle is stationary.
The belt pretensionin gisreduced and the
locking mechanis misreleased. G
WARNING
When adjusting the seat, mak esure that
nobody can become trapped.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is arisk that the seats
and/or the objects could be damaged.
More information abou tseat-belt adjust-
men t,ac onvenienc efunction integrated into
PRE-SAFE ®
,c an be found in the "Seat-belt
adjustment" section (Y page 48). Seat belts
Important safety notes Seat belts are the most effective means of
restraining the movemen
tofvehicle occu-
pant sint he even tofana ccident. This
reduce sthe risk of vehicle occupan ts coming
into contact with parts of the vehicl einterior. G
WARNING
As eat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, can notp erform its intended
protectiv efunction. Under certain circum-
stances, this could cause severe or even fatal
injuries in the event of an accident.
Make sure that all occupant s–inparticular,
pregnan twome n–w ear their seat belt cor-
rectly at all times.
R The seat belt must fit snugly on your body
and must no tbetwisted. Therefore, avoid
wearing bulky clothing, e.g. awinter coat.
The shoulder belt section must be routed
across the centre of your shoulder –onno
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 join ts–n ot 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
edge sorfragil eobjects, especially if these
are located on or in your clothing, e.g. spec-
tacles, pens, keys, etc. The seat belt strap
could be damaged and tear in an accident,
and you or other vehicl eoccupants could
be injured.
R Onl yone person should use each sea tbelt
at any one time. Children must never travel
sittin gont he lap of other occupan ts.It
would not be possible to restrain the child
in the event of asudden change in direc-
tion, braking or an accident .This could 46
Occupant safetySafety

Sea
tbelt adjustment The seat-belt adjustment func
tion adjusts the
driver's and front-passenger seat belt to the
upper body of the occupants.
The belt strap is tighte neds lightly when:
R you engage the belt tongue in the belt
buckle and you then turn the key to position
2 in 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 acertain
tightening force if any slack is detected
between the occupant and the seat belt. Do
not hold on to the seat belt tightly while it is
adjusting. You can switc hthe seat-belt
adjustment on and off in the on-boar dcom-
puter (Y page 251).
The seat-belt adjustment is an integra lpart of
the PRE-SAFE ®
convenience function. More
information about PRE-SAFE ®
can be found
in the "PRE-SAFE ®
(preventative occupant
protection)" section (Y page 45).
Belt height adjustment You can adjust the seat belt height on the
driver' sseat and the front-passenger seat. Adjust the height so that the upper part of the
seat belt is routed across the centre of your
shoulder. X
To raise: slide the belt sash guide upwards.
The belt sash guide engages in various posi-
tions.
X To lower: press and hold belt sash guide
release :.
X Slide the belt sash guide downwards.
X Release belt sash guide release :and
mak esure that the belt sash guide has
engaged.
Releasing seat belts X
Press release button ?(Ypage 47) and
guide belt tongue ;back towards belt
sash guide :.
! Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam-
aged seat belts can no longer fulfil their
protective function and must be replaced.
Consult aMercedes-Benz Servic eCentre.
Belt warning for driver and front
passenger The
7 seat belt warning lam pint he instru-
men tcluster is areminder for all occupants
to fasten their seat belts. It may light up con-
tinuously or flash. In addition ,there ma ybea
warning tone.
The 7 seat belt warning lamp goes out and
the warning tone ceases when the driver and
the front passenge rhave fastened their seat
belt.
For certain countries only: regardless of
whethe rthe driver or the front passenger
hav efastened their seat belts, the 7seat
belt warning lamp lights up for six seconds
after the engine is started. It then goes out if
the driver and the front passenger have fas-
tened their seat belts.
i For more information on the 7seat
belt warning lamp, see "Warning and indi- 48
Occupant safetySafety

the dashboard and on both side
softhe sun
visor on the fr ont-passenge rside.
Information about recommended child
restraint system sisavailabl eatany
Mercedes-Ben zServic eCentre.
Automatic child seat recognition on the
front-passenger seat If your vehicle does not have automatic child
seat recognition 1
on the fron t-passenger
seat, this is indicated by aspecial sticker .The
stic kerisa ffixe dtot he side of the dashboard
on the front-passenger side. The stic keris
visible when yo uopen the front-passenger
door. The front-passenger seat sensor system for
child restraint systems detect swhether a
special Mercedes-Ben zchild seat with a
transpo nder for automatic child seat recog-
nition has been fitted. In this case, 4
PASSENGER AIRBA GOFF indicato rlamp : lights up. The front-passenger front airbag is
disabled. G
WARNING
If the 4 PASSENGER AIRBAG OFF indica-
tor lamp does not light up when the child
restraint system is fitted, the front-passenger
airbag has not been disabled. If the front-
passenger airbag deploys, the child could be
seriously or even fatally injured.
Proceed as follows:
R do not use arearward-facing child restraint
system on the front-passenger seat.
R fit arearward-facing child restraint system
on asuitable rear seat.
or
R only use aforward-facing child restraint
system on the front-passenger seat and
mov ethe front-passenger seat to the rear-
most position.
R hav ethe automatic chil dseat recognition
checked at aqualified specialist workshop.
To ensure that the automatic child seat rec-
ognitio nonthe front-passenger seat func-
tions/communicates correc tly, 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.
i If the front-passenger front airbag is dis-
abled by the automatic child seat recogni-
tion, the following remain enabled on the
front-passenger side:
R the sidebag
R the windowb ag
R the belt tensio ner
1 Vehicles withou tautomatic child seat recognition on the front-passenger seat: if you turn the key to position
2int he ignition lock ,the 4 PASSENGER AIRBAG OFF indicator lamp lights up briefly but has no function.
It does not indicate that there is automatic child seat recognition on the front-passenger seat. 52
Childre
ninthe vehic leSafety

G
WARNING
Do not pl acee lectronic devices on the front-
passenger seat, e.g.:
R laptops, when switched on
R mobil ephones
R cards with transponders, e.g. ski passes or
access cards
Signals from electronic equipment can cau se
interference in the automatic child seat rec-
ognitio nsensor system. This can lead to a
system malfunc tion. This may cause the
4 PASSENGER AIRBA GOFF indicator
lamp to light up without there being achild
seat with transponder sfor automatic child
seat recognition fit ted. The front-passenger
airba gwill not then deploy during an accident.
It is also possible that the 6SRS warning
lamp lights up and/or the 4PASSENGER
AIRB AGOFF indicator lam pdoes not light up
briefly when you tur nthe key in the ignition
lock to position 2.
ISOFIX child seat securing system for
th er ear seats ISOFIX is
astandardised securing syste mfor
specially designed child restraint system son
the rear seats .Securin grings for two ISOFIX
child restraint systems are fitted on the left
and right of the rear seats. G
WAR
NING
Ac hild restraint system secured by the ISOFIX
chil dseat securing system does not provide
sufficien tprotection for children weighing
more than 22 kg. For this reason, do not
secure children weighing more than 22 kg in
ac hild restraint system secured by the ISOFIX
chil dseat securing system. If the child weighs
mor ethan 22 kg, secur ethe chil drestraint
system using athree-point seat belt. G
WARNING
The chil drestraint system cannot perform its
protec tive function if it is not correctly fitted
to as uitable vehicle seat. The child cannot be restrained in the event of an accident, heavy
braking or sudde
nchanges of direction. The
chil dcould be seriously or even fatally injured.
For this reason, when fittin gachild restraint
system ,observ ethe manufacturer' sinstalla-
tion instructions and the correct use of the
child restraint system.
For reasons of safety, only use child restraint
systems with the ISOFIX child sea tsecuring
system on the rear seats.
We recommen dthat you use the ISOFI Xchild
restraint system sthat hav ebeen recommen-
ded for Mercedes-Benz.
An incorrectly fitted child restraint system
could com eloose and seriously or even fatally
injure the child or other vehicle occupants.
When fittin gthe chil drestraint system, always
mak esure that it is engage dcorrectly in the
securing rings on both sides. G
WARNING
Please note that if child restraint systems, or
their retaining systems, are damaged or sub-
jected to aload in an accident ,they ma ynot
be able to provide their protective function.
This coul dresult in serious or even fatal inju-
ries to the secured child in the event of an
accident, heavy braking or asudden change
in direction.
For this reason, have child restraint systems
and their anchorages which have been dam-
aged or subjected to aload in an accident
chec kedi mmediatel yataq ualified specialist
workshop.
! Whe nfittin gthe chil drestraint system,
mak esure that the seat belt for the centre
seat does not get trapped. Otherwise, the
seat belt could be damaged. Children in the vehic
le
53Safet y Z

Problems wit
hchilds eat recognition Problem Possible causes/consequences and
M Solutions
The
4 PASSENGER
AIRB AGOFF indicator
lam ponthe cen trecon-
sole is lit. As
pecial Mercedes-Benz child seat with atransponde rfor auto-
matic child seat recognition has been fit tedtot he front-passenger
seat. The front-passenger airbag has therefor ebeen disabled as
desired. The
4 PASSENGER
AIRBAG OFF indicator
lam ponthe centr econ-
sole is lit.
or
SRS warnin glamp
6 lights up and/or
the 4 PASSENGER
AIRBAG OFF indicator
lamp does not light up
briefly when you switch
the ignition on. G
Risk of injury
There is no child seat fitted to the front-passenger seat. Automatic
child seat recognition is malfunctioning.
X Remove electronic equipment from the front-passenger seat,
e.g.
R
laptop
R mobile phone
R cards with transponde rs,s uch as ski passes or access cards
If the 4 PASSENGER AIRBAG OFF indicator lamp is still lit:
X Visit aqualified specialist workshop. Suitable positioning of the child restraint systems
Key to the letter
sused in the table:
XS eat which is unsuitable for children in this weight category.
US uitable for child rest raint systems in th eUnivers al categor ythat ar eapprove dfor use in
this weigh tcategory.
UF Suitable for forward-facing child rest raint systems that belon gtothe "Universal" categ ory
and ar eapproved for use in this weigh tcategory.
LS uitable for child rest raint systems as recommended, see th efollowin gtable of "Recom-
mended child restraint systems "(Ypage 58). 56
Children in th
evehicleSafety

Seat positions
Weigh
tcatego-
ries Front-passenger seat Rear seat
Front-
passenger air-
bag is no
tdisa-
bled: The front-
passenger air-
bag is disa-
bled
2 Left
,right Centre
Grou
p0:upto
10 kg X U, L U U
Group 0+: up
to 13 kg
X U, L U U
Group I:
9to
18 kg UF U, L U U
Group II: 15 to
25 kg UF U, L U U
Group III: 22 to
36 kg UF U, L U U
"Universal" category child restraint systems can be recognised by their orange approval label.
Approval label on the child restrain
tsystem (example)
Key to the letters used in the table:
XI SOFIX position tha tisnot suitable for ISOFI Xchild restraint system sinthis weight cat-
egory and/or size category.
IU FS uitable for forward-facing ISOFIX child seat securing systems that belong to the "uni-
versal" category which are approved for use in this weigh tcategory.
IL Suitable for ISOFI Xchild restraint system sasrecommended; see the following table of
"Recommended child restraint systems" (Y page 58).
2 Vehicles with automatic chil dseat recognition on the front-passenger seat: achild restraint system of the
"Universal" category with atransponde rfor automatic child seat recognition must be fitted. The 4
PASS ENGER AIRBAG OFF indicator lamp must be lit. Children in the vehicle
57Safety Z

The radar sensor system must be switched off
using the on-boar dcomputer in the vicinit yof
radio telescop efacilities 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
Information about switching off the rad ar sen-
so rs ystem using the on-board computer can
be found in the "On-board computer and dis-
plays “section (Y page 249).
For PRE- SAFE®
Brake to assist you whe ndriv-
ing ,the radar sensor system must be
switc hed on (Y page 249) an dbeopera-
tional.
Followin gdamage to the fron tend of the vehi-
cle ,havet he configuration and operation of
the radar sensors checked at aqualified spe-
cialist workshop. This also applie stoc olli-
sions at slow speeds where ther eisnovisible
damage to the fron tofthe vehicle. STEE
RCONTROL
The steering assistan tSTEE RCONTROL helps
you by transmittin ganoticeable steering
force to the steering wheel in the direction
required for vehicle stabilisation.
This steering assistance is provided in partic-
ular if:
R both right wheels or both left wheels ar eon
aw et or slippery road surface when you
brake
R the vehicle starts to skid
You have control over the steerin gatall
times. G
WARNING
If there is an ESP ®
malfunction, you will not
receiv eany steering assistance from the
STEER CONTROL. The steering continues to
function with steering assistance. Anti-theft systems
Immobiliser
The immobilise rprevents your vehicl efrom
being starte dwithout the correct key.
X To activate with the key: removethe key
from the ignition lock.
X To activate wit hKEYLESS-GO: switch the
ignition off and open the driver' sdoor.
X To deactivate: switchont he ignition.
i The immobiliser is always deactivated
when you star tthe engine. ATA (Anti-Thef
tAlarm system)
Av isual and audible alarm is triggered if the
alarm system is prime dand you ope n:
R ad oor
R the vehicle with the emergency key ele-
ment
R the tailgate
R the bonnet
The alar misnot switched off ,even if you
close th eopen door that has triggere dit, for
example. X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm sys-
tem is primed after approximately 15 sec-
onds.
X To deactivate: unlock the vehicle with the
key or KEYL ESS-GO.68
Anti-thef
tsystemsSafety

X
To sto pthe alarm using the key: insert
th ek ey into the ignition lock.
The alarm is switched off.
or
X Pres sthe % or& button on the key.
The alarm is switched off.
X To stop th ealarm using KEYLESS-GO:
grasp the outside door handle. The key
must be outside the vehicle.
The alarm is switched off.
or
X Press the Star t/Stopbutton on the dash-
board. The key must be inside the vehicle.
The alarm is switched off. Tow-away protection
An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This occurs if
the vehicle is jacked up on one side ,for exam-
ple.
X To pri me:lock the vehicle with the key or
KEYLESS-GO.
Tow-away protection is primed after
approximately 30 seconds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
Tow-away protection is deactivated auto-
matically.
To prevent afalse alarm, deactivate tow-away
protection manually if your vehicle:
R is being transported
R is being loade donto aferr yorc ar trans-
porter, for example
R is parked on amovable surface, e.g. in a
split-leve lgarage
Deactivating:
X Remove the key from the ignition lock. X
Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLE SS-
GO.
Tow-awa yprotectio nisdeactivated.
Tow-away protection remains deactivated
until:
R the vehicle is unlocked again.
R ad oor is opened and closed again.
R the vehicle is locked again. Interior motion sensor
If the interior motion sensor is primed, avis-
ual and audible alarm is triggered if move-
ment is detected in the vehicle interior while
the vehicle is locked. This occur sifsomeone
reaches int othe vehicle interior, for example.
To activate:
X Make sur ethat the side windows and the
slidin gsunroof/panorama sliding sunroof
are closed.
This will prevent false alarms.
X The interior motion senso risp rime dafter
approximately 30 seconds.
To switch off:
X Unlock th evehicle with the key or KEY-
LESS-GO.
The interior motion sensor is deactivated
automatically. Anti-theft systems
69Safety Z