2018 MERCEDES-BENZ G-CLASS warning

Problems with the SmartKey
ProblemPossible causes/consequences andMSolutions
You can no longer lock or
unlock the vehicle using
the SmartKey.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 65) and replace it if necessary
(Ypage 65).
If this does not work:
XLock or unlock the vehicle using the mechanical key (Ypage 68).
There is interference from a powerful source of radio waves.
XLock or unlock the vehicle using the mechanical key (Ypage 68).
The SmartKey is faulty.
XLock or unlock the vehicle using the mechanical key (Ypage 68).
XHave the SmartKey checked at a qualified specialist workshop.
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 248).
or
XJump-start the vehicle (Ypage 249).
or
XConsult a qualified specialist workshop.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
66Doors
Opening and closing

XTo deactivate:press and hold button :for
approximately five seconds until a tone
sounds.
XTo activate: press and hold button ;for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing.
You could therefore be locked out if:
Rthe vehicle is being pushed.
Rthe vehicle is being towed.
Rthe vehicle is being tested on a dynamometer.
You can also switch the automatic locking func-
tion on and off using the on-board computer
(
Ypage 170).
Locking/unlocking the driver's door
with the mechanical key
XInsert the mechanical key into the lock of the driver's door as far as it will go.
XTo unlock: turn the mechanical key counter-
clockwise as far as it will go to position 1.
XTo lock:turn the mechanical key clockwise as
far as it will go to position 2.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm sys-
tem will be triggered. Switch off the alarm
(
Ypage 62).
Rear door
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the rear
door is open when the engine is running, par-
ticularly if the vehicle is moving, exhaust
fumes could enter the passenger compart-
ment. There is a risk of poisoning.
Turn off the engine before opening the rear
door. Never drive with the rear door open.
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The tailgate swings out to the side when
opened. Therefore, make sure that there is
sufficient clearance.
Do not leave the SmartKey in the cargo com-
partment. Otherwise, you could lock yourself
out.
You should preferably place luggage or loads in
the cargo compartment. Observe the loading
guidelines (
Ypage 209).
Opening
The rear door must be unlocked before it can be opened.
XPress the %button on the SmartKey.
68Rear door
Opening and closing

XPress release button:and pull door han-
dle ;.
XOpen the rear door.
Closing
XPush the rear door closed from outside the
vehicle.
XLock the vehicle with the &button on the
SmartKey.
Side windows
Important safety notes
GWARNING
While opening the side windows, body parts
could become trapped between the side win-
dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or
pull the switch to close the side window again.
GWARNING
While closing the side windows, body parts in
the closing area could become trapped. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again.
GWARNING
If children operate the side windows they
could become trapped, particularly if they are left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the SmartKey with you and lock the vehi-
cle. Never leave children unsupervised in the
vehicle.
Opening and closing the side win-
dows
The switches for all side windows are located on
the driver's door. There is also a switch on each
door for the corresponding side window.
The switches on the driver's door take prece-
dence.
:Front left
;Front right
=Rear right
?Rear left
XTurn the SmartKey to position 1or2 in the
ignition lock.
XTo open manually: press and hold the cor-
responding switch.
XTo open automatically: press the corre-
sponding switch beyond the point of resist-
ance and release it.
Automatic operation is started.
XTo interrupt automatic operation: press/
pull the corresponding switch again.
XTo close manually: pull the corresponding
switch and hold it.
You can continue to operate the side windows
after you switch off the engine or remove the
Side windows69
Opening and closing
Z

SmartKey. This function remains active for five
minutes or until you open a front door.
The side windows cannot be operated from the
rear when the override feature for the side win-
dows is activated (
Ypage 57).
Convenience opening
i
The convenience opening feature can only
be operated using the SmartKey. The Smart-
Key must be close to the driver's door handle.
You can ventilate the vehicle before you start
driving. To do this, the SmartKey is used to carry
out the following functions simultaneously:
Runlock the vehicle
Ropen the side windows
Ropen the sliding sunroof
Rswitch on the seat ventilation for the driver's
and front-passenger seat
XPoint the tip of the SmartKey at the driver's
door handle.
XPress and hold the %button on the Smart-
Key until the side windows and the sliding
sunroof are in the desired position.
XTo interrupt convenience opening: release
the % button.
Convenience closing feature
Important safety notes
GWARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
Operation
iThe "convenience closing feature" can only
be operated using the SmartKey. The Smart-
Key must be close to the driver's door handle.
When you lock the vehicle, you can simultane-
ously:
Rclose the side windows
Rclose the sliding sunroof
XPoint the tip of the SmartKey at the driver's
door handle.
XPress and hold the &button on the Smart-
Key until the side windows and the sliding
sunroof are fully closed.
XMake sure that all the side windows and the
sliding sunroof are closed.
XTo interrupt convenience closing: release
the & button.
Problems with the side windows
GWARNING
Closing the side windows with increased force or without the anti-entrapment feature could lead to serious or even fatal injury. Make sure that nobody can become trapped when closing the side
windows.
70Side windows
Opening and closing

ProblemPossible causes/consequences andMSolutions
A side window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide.XRemove the objects.
XClose the side window.
A side window cannot be
closed and you cannot
see the cause.If a side window is obstructed during closing and reopens again
slightly:
XImmediately after the window blocks, pull the corresponding switch
again until the side window has closed.
If a side window is obstructed again during closing and reopens again slightly:
XImmediately after the window blocks, pull the corresponding switchagain until the side window has closed.
The side windows cannot
be opened or closed with
convenience opening.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 65) and replace it if necessary
(Ypage 65).
If a side window will still not open or close due to a malfunction, consult a qualified specialist
workshop.
Sliding sunroof
Important safety notes
GWARNING
While opening and closing the sliding sunroof, body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro-
cedures.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop- ped.
GWARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Only open the sliding sunroof if it is free of
snow and ice. Otherwise, malfunctions may
occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could be
damaged.
!The weather can change abruptly. It could
start to rain or snow. Make sure that the slid- ing sunroof is closed when you leave the vehi-
cle. The vehicle electronics can be damaged if
water enters the vehicle interior.
Resonance noises can occur in addition to the
usual airflow noises when the sliding sunroof is
open. They are caused by minor pressure fluc-
tuations in the vehicle interior. Change the posi-
tion of the sliding sunroof or open a side window
slightly to reduce or eliminate these noises.
Sliding sunroof71
Opening and closing
Z

Problems with the sliding sunroof
GWARNING
You could be severely or even fatally injured when closing the sliding sunroof with increased
closing force or if the anti-entrapment feature is deactivated. Make sure that nobody can become
trapped when closing the sliding sunroof.
ProblemPossible causes/consequences and MSolutions
The sliding sunroof can-
not be closed and you
cannot see the cause.If the sliding sunroof is obstructed during closing and reopens again
slightly:
XImmediately after it blocks, pull the¡switch down again to the
point of resistance until the sliding sunroof is closed.
If the sliding sunroof is obstructed again during closing and then
reopens slightly:
XImmediately after it blocks, pull the ¡switch down again to the
point of resistance until the sliding sunroof is closed.
If the sliding sunroof will still not open or close due to a malfunction, consult a qualified specialist
workshop.
Sliding sunroof73
Opening and closing
Z

Correct driver's seat position
:Steering wheel
;Seat belts
=Backrest
XObserve the safety guidelines on seat adjust-
ment (Ypage 74).
XMake sure that seat=is adjusted properly.
Electrical seat adjustment (
Ypage 76)
When adjusting the seat, make sure that:
Ryou are as far away from the driver's air bag as
possible
Ryou are sitting in a normal upright position
Ryou can fasten the seat belt properly
Ryou have moved the backrest to an almost
vertical position
Ryou have set the seat cushion angle so that
your thighs are gently supported
Ryou can depress the pedals properly
XCheck whether the head restraint is adjusted
properly (Ypage 76).
When doing so, make sure that you have
adjusted the head restraint so that the back of
your head is supported at eye level by the
center of the head restraint.
XObserve the safety guidelines on steering
wheel adjustment (Ypage 74).
XMake sure that steering wheel :is adjusted
properly.
Adjusting the steering wheel electrically
(
Ypage 80). When adjusting the steering wheel, make sure
that:
Ryou can hold the steering wheel with your
arms slightly bent
Ryou can move your legs freely
Ryou can see all the displays in the instrument
cluster clearly
XObserve the safety guidelines for seat belts
(Ypage 40).
XCheck whether you hav
e fastened seat
belt ;properly (Ypage 41).
The seat belt should:
Rfit snugly across your body
Rbe routed across the middle of your shoulder
Rbe routed across your hips in the pelvic area
XBefore starting off, adjust the rear-view mirror
and the exterior mirrors in such a way that you
have a good view of road and traffic condi-
tions (
Ypage 82).
XVehicles with a memory function: save the
seat, steering wheel and exterior mirror set-
tings with the memory function (
Ypage 84).
Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when there is no
SmartKey in the ignition lock.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(
Ypage 44) and "Children in the vehicle"
(Ypage 50).
74Seats
Seats, steering wheel and mirrors

GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
of injury in the head and neck area, e.g. in the event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Make sure that you do not rotate the head
restraints of the front and rear seats when
adjusting the head restraints. Otherwise, you
cannot adjust the height and angle of the head
restraints correctly.
Adjust the head restraint so that it is as close as
possible to your head.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
!When the rear bench seat is folded for-
wards, the front seats cannot be moved to
their rearmost position. You could otherwise
damage the seats and the rear bench seat.
!Make sure that the sun visor is folded up
before adjusting the backrest and head
restraint height. The head restraint and sun
visor could otherwise collide when the head
restraint is fully extended.
iIf the front door is open, the seats can be
adjusted for up to 30 minutes after the igni-
tion has been switched off.
iThe rear-compartment head restraints can
be removed (Ypage 77).
For more information, contact a qualified spe-
cialist workshop.
iYou can find further information about
enlarging the cargo compartment (folding the
rear bench seat forwards) on (
Ypage 213).
Seats75
Seats, steering wheel and mirrors
Z