2011 MERCEDES-BENZ M-CLASS SUV child lock

Problem Possible causes/consequences and
M Solutions
The engin
ecannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting ,and try to start the engine again.
If this doe snot work:
X Check the starter battery and charge it if necessary
(Y page 343).
or
X Jump-start the vehicle (Y page 348).
or
X Consult aqualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key can notb ed etected as easily.
X Close the door and tr ytostart the vehicle again. There is interferenc
efrom apowerfu lsource of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only fo rthe Unite dKingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock func tion is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leav eany people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance .As
ar esult, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposur etoextremely hig horlow
tempera tures, for example. In this case ,res-
cuin gpeople from outside the vehicle is diffi-
cult.
Deac tivate the interior motion sensor before
you lock the vehicle .The doors can then be
opened from the insid eafter the vehicl ehas
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R star tthe vehicle usin gakey which has been
left in the vehicle
R release the electric parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Alway stake the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. Unlocking and opening th
edoors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked.
Only for th eUnited Kingdom: if the vehicle
has been locked with the key or with KEY-
LE SS-G O, the doubl elock function is activa-
ted as standard. It is then not possible to open Doors
77Opening and closing Z

the doors from ins
idethe vehicle. Deactivate
the interio rmotion sensor (Y page 69)before
you lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside.
You can only open the rear doors from inside
the vehicle if they are not secured by the
child-proof locks (Y page 60).X
Pull door handle ;.
If the door is locked, locki ngknob :pops
up. The doo risu nlocke dand can be
opened. Centrally lockin
gand unlocking the
vehicle from th einside
You can cen trally lock or unlock the vehicle
from the inside.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
The button sare locate donboth front doors.
i You can notu nlock the vehicl ecentrally
from the inside if the vehicle has been
locked with the key or KEYLESS-GO.
i It is only possible to lock the vehicle cen-
trally if the front-passenger door is closed. X
To unlock: press button :.
X To lock: press button ;. Automatic locking mechanism
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefor ebelockedout when:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is being tested on adynamom-
eter. X
To deactivate: press and holdbutton :
for about five seconds until atones ounds.
X To activate: press and hold button ;for
about fiv eseconds until atones ounds.
i If you press one of the two button sand
do not hea ratone, the relevant setting has
already been selected. 78
DoorsOpening and closing

Opening/closing au
tomatically from
outside
Important safet ynotes G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children ,elderly peo-
ple or people requirin gspecial assistance. As
ar esult, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally inju redby
prolonged exposure to extremely high or low
temperatures, for example. In this case, res-
cuin gpeople from outside the vehicle is diffi-
cult.
Deac tivate th einterior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicl ehas
been locked from the outside. G
WARNING
Monitor the tailgate opening and closing pro-
cedures to make sure that nobody can
become trapped. To stop the opening or clos-
ing procedure, press the closing button on the
tailgate again or pull the handle on the outside
of the tailgate.
! The tailgate swings upwards and to the
rear when opened .Therefore, make sure
that ther eiss ufficien tclearance above and
behind the tailgate.
i You will fin ddetails on the tailga teopen-
ing dimension sinthe Technical data sec-
tion (Y page 37 8). Opening You can open the tailgat
eautomatically with
the key or the handle in the tailgate.
X Press and hold the Fbutton on the key
until the tailgate opens.
or
X When the tailgate is unlocked, pull the han-
dle and let it go again immediately.
Closing You can close the tailgate automatically using
the key, the closin
gbutton 4
or the locking
button 5
. Closing butto
nand locking button (example :vehi-
cle with the EASY-PACK tailgat eand KEYLESS-GO)
X To close: pressclosing button :on the
tailgate.
or
X Press and hold the Fbutton on the key
until the tailgate closes.
X To close and lock simultaneously:
Press lockin gbutton ;on the tailgate.
i Simultaneously closing and lockin gthe
tailgat eisonly possible if all doors are shut
and the key is locate dinthe vicinit yofthe
tailgate.
i The tailgat ecan only be opened and
closed with the key if there is no key in the
ignition lock.
4 For vehicles with the EASY-PACK tailgate only.
5 For vehicles with the EASY-PACK tailgate and KEYL ESS-GO only. Luggag
ecompa rtment
81Opening and closi ng Z

!
When opening, the tailgate swings up and
out. Therefore, mak esure that there is suf-
ficient clearance above and behind the tail-
gate.
X Insert emergency key element ;into
opening in trim :.
X Turn emergency key element ;90° clock-
wise.
X Push emergency key element ;in the
direction of the arrow and open the tail-
gate. Side windows
Important safety notes
G
WARNING
Make sure that nobody can become trapped
between the side window and the door frame
when aside window is opened. Do not touch
or lean against the side window during the
opening procedure. You could become trap-
ped between the side window and the door
frame as the side window moves down. If
there is arisk of becoming trapped, release
the switch or pull the switch upwards to close
the side window again. G
WARNING
Make sure that nobody can become trapped
as you close aside window. If there is arisk
of becoming trapped, release the switch or
press it agai ntoopen the side window again. G
WARNING
Children may injur ethemselves if they open
or close the side windows.
Never leav echildren unsupervised in the vehi-
cle. Always tak ethe key with you when leaving
the vehicle, even if you ar eonly leaving it for
as hort time. G
WARNING
Do not leav echildren unsupervised in the
vehicle, even if they ar esecured in achild
restraint system .The children could:
R be seriously or even fatall yinjured on parts
of the vehicle
R be seriously or even fatally injured by pro-
longed exposure to extremely hig hor
extremely low temperatures
If children open adoor, they could:
R seriously or even fatally injure other people
R get out of the vehicle and injure them-
selves, or be seriously or even fatally
injure dbya passing vehicle
Activat ethe child-proof locks/overrid efea-
tur eifc hildren ar etravelling in th evehicle.
They could otherwise open doors or side win-
dows while the vehicle is in motion and
thereby injure themselves or others. Opening and closing the side win-
dows :
Fron tleft
; Fron tright Side windows
83Openingand closing Z

lead to serious or even fatal injury. Make sure
that nobody can becom etrapped when clos-
ing the side windows.
If as ide window is obstructed during closing
and reopen sagain slightly:
X Im me diately after the window blocks, pull
the correspondin gswitc hagain until the
side window has closed.
The side window is close dwith increased
force.
If as ide window is obstructed again during
closing and reopen sagain slightly:
X Im me diately after the window blocks, pull
the correspondin gswitc hagain until the
side window has closed.
The side window is close dwithout the anti-
entrapmen tfeature. Sliding sunroof
Important safet
ynotes
Your vehicle may be fitted with asliding sun-
roof or apanorama sliding sunroof. In the fol-
lowing section, the ter m"slidin gsunroof"
refers to both types of sliding sunroof. G
WARNING
Make sure that nobody can become trapped
when opening and closing the sliding sunroof.
If there is arisk of entrapment ,release the
switch immediately. Durin gautomatic opera-
tion ,push the switc hbriefly in any direction
to stop the sliding sunroof. G
WARNING
Th eg lass in th epanoram asunroof could
brea kinana ccident. If yo uare not wearin ga
seat belt ,there is arisk that you could be
thrown through the opening in the event of the
vehicle overturning. Therefore, always wear a
seat belt to reduce the risk of injuries. G
WARNING
Children could injur ethemselves if they oper-
ate the slidin gsunroof.
Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
as hort time.
! Only open the panoram asliding sunroof
if it is free of snow and ice. Otherwise, mal-
func tions ma yoccur.
Do not allo wanything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usual airflow noises whe nthe sliding
sunroof is open. They ar ecaused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open aside window slightly to reduce or
eliminat ethese noises. Operating th
esliding sunroof
Opening and closing i
You can continue to operate the sliding
sunroof after switching off the engine or
removing the key. This function remains
activ efor fiv eminutes or until the driver's
or front-passenger door is opened. Overhead control panel
:
To raise
; To open
= To close/lower 86
Slidin
gsunroofOpenin gand closing

in such
away that you have agood view of
roa dand traffic conditions.
X Vehicles with amemory function: save
the seat, steerin gwheel and exterior mirror
settings (Y page 103). Sea
ts Important safety notes
G
WARNING
The seats can still be adjusted when ther eis
no key in the ignition lock. For this reaso n,
children shoul dnever be left unsupervised in
the vehicle. They could adjust the seat sand
become trapped. G
WARNING
Only adjus tthe driver' sseat when the vehicle
is stationary. You will otherwise be distrac ted
from the road and traffic conditions and you
could lose control of the vehicle as aresult of
the seat moving. This could cause an acci-
dent. G
WAR
NING
If you adjus tthe seat height car elessly, you or
others could be trapped and thereb yinjured.
Children in particular could unintentionally
pres sthe buttons to electrically adjust the
seat sand become trapped.
Take care that:
R whil emoving the seats, your hands do not
get under the lever assembly of the seat
adjustmen tsystem.
R children in the vehicl edonot slidetheir
hands unde rthe levers. G
WARNING
Make sur ethat nobody can becom etrapped
when adjusting the seats.
Observe the notes on airbags.
Secure children as recomm ended; see the
"Children in the vehicle" section. G
WAR
NING
Make sure that the back of your head is sup-
ported at eye level by the central area of the
head restraint .Ifyour head is not supported
correctly by the head restraint ,you coul dsuf-
fer asever eneck injury in the event of an
accident .Never driv eifthe head rest raints are
not engaged and set correctly. G
WARNING
As eat belt can only offer its intended degree
of protection when the back rest is almost ver-
tical and the occupan tiss itting upright. Avoid
seat positions that do not allow the seat belt
to be routed correctly. Adjust the backrest so
that it is as upright as possible .Never travel
with the back rest reclined too fa rbackwards.
You could otherwise be seriousl yoreven
fatally injured in th eevent of an accident or
sudden braking.
! To avoid damag etothe seats and the seat
heating, observe the followin ginformation:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the sea tcover sare damp or wet, do not
switc hont he seat heating. The seat
heating should also not to be used to dry
the seats.
R clea nthe seat cover sasrecommended;
see the "In terior care" section.
R do not transport heav yloads on the
seats. Do not plac eshar pobjects on the
seat cushions ,e.g. knives, nails or tools.
Th es eats should only be occupied by
passengers, if possible.
R when the seat heatin gisinoperation ,do
not cover the seats with insulating mate-
rials, e.g. blanke ts,c oats, bags, seat cov-
ers, child seats or booster seats.
! When you mov ethe seats, make sur ethat
ther eare no objects in th efootwell or
behind the seats. Otherwise, you could
damage the seats and the objects. Seats
93Seats,steering wheeland mirrors Z

Problems wit
hthe seat ventilation Th
es eat ven tilation has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumer sare switched
on.
X Switch off electrica lconsumers which you
do not need, such as the rea rwindow heat-
ing or interior lighting. Steering wheel
Important safet
ynotes G
WARNING
The electrically adjustable steering wheel can
still be adjusted when there is no key in the
ignition lock. Therefore, do not leave children
unsupervised in the vehicle, as they could
become trapped if the steering wheel is adjus-
ted. G
WARNING
Only adjust the steering wheel when the vehi-
cle is stationar yand do not pull away until the
steering wheel adjustment mechanis mis
locked in position. You might otherwise drive
without the steering wheel adjustment mech-
anism being locked in position. As aresult,
you could be distracted from road and traffic
condition sbyanunintentional movement of
the steering wheel and thereby cause an acci-
dent.
However, the steerability of the vehicl eisnot
affected. Adjusting th
esteerin gwheel man-
ually :
Release lever
; To adjus tthe steering wheel height
= To adjust the steering wheel position
(fore-and-af tadjustment)
X Push release lever :down completely.
The steerin gcolum nisu nlocked.
X Adjus tthe steering wheel to the desired
position.
X Push release lever :up completely.
The steering column is locked.
X Chec kifthe steering column is locked.
When doing so, tr ytopush the steering
wheel up or down or try to move it in the
fore-and-aft direction. Adjusting the steering wheel electri-
cally
:
To adjust the steering wheel height
; To adjust the steering wheel position
(fore-and-aft adjustment) 98
Steering wheelSeats, steerin
gwhee land mirrors

i
Related topics:
R EASY-ENTRY/EXI Tfeature
(Y page 99)
R Storing setting s(Ypage 103) Steering whee
lheating
Activating/deactivating X
Mak esuret hat the key is in position 2in
th ei gnition lock.
X To switch on/off: turnthe lever in the
direction of arrow :or;.
Indicato rlamp =lights up or goes out.
Vehicles without KEYLESS-GO: when you
remove the key from the ignition ,the steering
wheel heating is switched off.
Vehicles with KEYL ESS-GO:when you switch
off the ignition and open the driver's door, the
steering wheel heating is switched off.
Problems wit hthe steering whee lheat-
ing The steering wheel heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumer sare
switche don.
X Switch off electrical consumers which you
do not need ,such as the rear window heat-
ing or interior lighting. EASY-ENTRY/EXIT featu
re
Important safety notes The EASY-ENTRY/EXI
Tfeatur emakes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board com-
puter (Y page 251). G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXI Tfea-
ture.
If there is arisk of someone becoming trap-
ped, stop the adjustment procedure. To halt
the procedure:
R press the steering column adjustment but-
ton.
R briefly press one of the memor yfunction
position buttons.
The steering column stops moving immedi-
ately.
Do not keep the memory function position
button presse ddown, otherwise the memory
function will star tand the steering wheel and
sea twill begin to move.
Never leave children unsupervised in the vehi-
cle. They could open the driver's door and
thereby unintentionally activate the EASY-
ENTRY featur eand become trapped.
Positio nofthe steering whee lwhen the
EAS Y-ENTRY/EXIT featur eisactive The steerin
gwheel tilt supwards if you:
R remove the key from the ignition lock
R open the driver' sdoor and KEYLESS -GOis
in position 1
R open the driver's door and the key is in
position 0or 1in the ignition lock
i The steerin gwheel only moves upwards if
it has not already reached the upper end
stop. Steering wheel
99Seats,steering wheeland mirror s Z