lock MERCEDES-BENZ G-CLASS 2018 Service Manual

iThe system automatically switches from
level 3to level 2after approximately eight
minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
Switching the seat ventilation on/off
Switching on/off
Seat ventilation is only available for the front
seats.
The three blue indicator lamps in the buttons
indicate the ventilation level you have selected.
XMake sure that the SmartKey is in position 2
in the ignition lock (Ypage 105).
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
iIf you open the side windows and the sliding
sunroof using the SmartKey (Ypage 70), the
driver's seat ventilation automatically
switches to the highest level.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
Problems with the seat heating/seat ventilation
ProblemPossible causes/consequences and MSolutions
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
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
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
Steering wheel79
Seats, steering wheel and mirrors
Z

When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no SmartKey in
the ignition lock.
Adjusting the steering wheel
:Adjusts the steering wheel position (fore-
and-aft adjustment)
;Adjusts the steering wheel height
iIf the driver's door is open, the steering
wheel can be adjusted for up to 30 minutes
after the ignition has been switched off.
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 81)
RStoring settings (Ypage 84)
Steering wheel heating
Switching on/off
:To switch on the steering wheel heating
;To switch off the steering wheel heating
=Indicator lamp
The steering wheel heating warms the leather
areas on the steering wheel.
XTo switch on: make sure that the SmartKey is
in position 1or 2in the ignition lock.
XTurn the lever in the direction of arrow :.
Indicator lamp =lights up.
XTo switch off: make sure that the SmartKey
is in position 1or 2in the ignition lock.
XTurn the lever in the direction of arrow ;.
Indicator lamp =goes out.
iThe steering wheel heating does not switch
off automatically.
iThe steering wheel heating may switch off
temporarily if:
Rthe temperature in the vehicle interior is
above 86 ‡ (30 †)
Rthe temperature of the steering wheel is
above 95 ‡ (35 †)
Indicator lamp =remains on.
iThe steering wheel heating is deactivated if
you remove the SmartKey from the ignition
lock.
80Steering wheel
Seats, steering wheel and mirrors

Problems with the steering wheel heat-
ing
If steering wheel heating indicator lamp=is
flashing, the steering wheel heating has
switched off automatically. The vehicle's elec-
trical system voltage is too low because too
many electrical consumers are switched on.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
Once the battery is sufficiently charged, the
steering wheel heating will switch back on
automatically.
Steering wheel EASY-ENTRY/EXIT fea-
ture
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If somebody becomes trapped:
Rpress one of the memory function position
buttons, or
Rpress one of the memory function memory
buttons, or
Rmove the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
!Do not activate the EASY-ENTRY/EXIT fea-
ture, if the seat backrest is reclined too far
backwards. This can damage the front or rear
seats. You must first move the backrest to a
vertical position.
The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 170).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel moves upwards and towards
the dashboard if:
Ryou remove the SmartKey from the ignition
lock or
Ryou open the driver's door and the SmartKey
is in position 0or 1in the ignition lock
iThe steering wheel only moves upwards and
towards the dashboard if it has not already
reached the upper steering limiter.
Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selected position when:
Rthe driver's door is closed
Ryou insert the SmartKey into the ignition lock
The last position of the steering column is stored
when you switch off the ignition or when you
store the setting with the memory function
(
Ypage 84).
Mirrors
Rear-view mirror
XAdjust the rear-view mirror in such a way that
you have a good view of road and traffic con- ditions behind you.
Mirrors81
Seats, steering wheel and mirrors
Z

Exterior mirrors
Adjusting the exterior mirrors
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
XMake sure that the SmartKey is in position 1
or 2in the ignition lock (Ypage 105).
XPress button :to select the left-hand exte-
rior mirror
or
XPress button ;to select the right-hand exte-
rior mirror.
XPress button =up, down, or to the left or
right until you have adjusted the exterior mir- ror to the correct position. You should have a
good overview of traffic conditions.
iThe convex exterior mirrors provide a larger
field of vision.
iThe exterior mirrors are heated automati-
cally if the rear window defroster is switched
on and the outside temperature is low.
Folding the exterior mirrors in/out elec-
trically
XMake sure that the SmartKey is in position 1
or 2in the ignition lock (Ypage 105).
XBriefly press :.
Both exterior mirrors fold in or out.
iMake sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
iIf you are driving faster than 9 mph
(15 km/h), you can no longer fold in the exte-
rior mirrors.
Resetting the exterior mirrors
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must be
reset. The exterior mirrors will otherwise not
fold in when you select the "Fold in mirrors when
locking" function in the on-board computer
(
Ypage 170).
XMake sure that the SmartKey is in position 1
in the ignition lock (Ypage 105).
XBriefly press :.
82Mirrors
Seats, steering wheel and mirrors

Folding the exterior mirrors in/out
automatically
If the"Fold in mirror swhen locking" function is
activated in th eon-board computer
(
Ypage 170):
Rth eexterio rmirror sfol din automatically as
soo nas you loc kth evehicl efrom th eoutside .
Rtheexterio rmirror sfol dout again automati-
call yas soo nas you unlock th evehicl eand
then open th edriver' sor front-passenger
door .
Exterior mirror pushed out of position
XPress butto n: repeatedly until you hear th e
mirror engage in position .
The mirror housing is engage dagain and you
can adjust th eexterio rmirror sas usual
(
Ypage 82).
Automatic anti-glare mirrors
The rear-view mirror and th eexterio rmirror on
th edriver' sside automatically go int oanti-glare
mod eif:
Rth eignition is switched on and
Rinciden tligh tfrom headlamps strikes th esen -
sor in th erear-view mirror
iThe mirror sdo no tgo int oanti-glare mod eif
revers egear is engage dor if th einterio rlight-
ing is switched on .
Parking position for the exterior mir-
ror on the front-passenger side
Setting/storing the parking position
Using reverse gear
:Left-han dexterio rmirror
;Right-hand exterio rmirror
=Adjustmen tbutto n
?Memory butto n
You can position th efront-passenger side exte -
rio rmirror in suc h away that you can see th e
rear whee lon that side as soo nas you engage
revers egear .You can store this position .
XMakesure that th evehicl eis stationary and
that th eSmartKey is in position 2in th eigni-
tion loc k (
Ypage 105).
XPress butto n; for th eexterio rmirror on th e
front-passenger side .
XEngage reversegear .
The exterio rmirror on th efront-passenger
side moves to th epreset parking position .
XUse adjustmentbutto n= to adjust th eexte -
rio rmirror to aposition that allows you to see
th erear whee land th ecurb.
The parking position is stored.
iIf you shif tth etransmission to another posi -
tion ,th eexterio rmirror on th efront-
passenger side return sto th edriving position .
Usingthe memory but ton
You can position th efront-passenger side exte -
rio rmirror in suc h away that you can see th e
rear whee lon that side as soo nas you engage
revers egear .This setting can be store dusin g
memory butto nM ?.
Mirrors83
Seats, steering wheel and mirrors
Z

XMake sure that the SmartKey is in position2
in the ignition lock (Ypage 105).
XWith the exterior mirror on the front-
passenger side activated, use adjustment
button =to adjust the exterior mirror. In the
exterior mirror, the rear wheel and the curb
should be visible.
XPress memory button M? and one of the
arrows on adjustment button =within three
seconds.
The parking position is stored if the exterior
mirror does not move.
XIf the mirror moves out of position, repeat the
steps.
Calling up a stored parking position set-
ting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 105).
XAdjust the exterior mirror on the front-
passenger side using button ;.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger side
moves back to its original position:
Ras soon as you exceed a speed of 9 mph
(15 km/h)
Rif you press button :for the exterior mirror
on the driver's side
Memory functions
Storing settings
GWARNING
If you use the memory function on the driver's side while driving, you could lose control of
the vehicle as a result of the adjustments
being made. There is a risk of an accident.
Only use the memory function on the driver's
side when the vehicle is stationary.
GWARNING
When the memory function adjusts the seat or steering wheel, you and other vehicle occu-
pants – particularly children – could become
trapped. There is a risk of injury.
While the memory function is making adjust-
ments, make sure that no one has any body
parts in the sweep of the seat or steering
wheel. If somebody becomes trapped, imme-diately release the memory function position
button. The adjustment process is stopped.
GWARNING
Children could become trapped if they acti-
vate the memory function, 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 memory function can be used if the ignition
is switched off.
With the memory function, you can store up to
three different settings, e.g. for three different
people.
The following settings are stored as a single
memory preset:
Rposition of the seat, backrest and head
restraint
Rdriver's side: steering wheel position
Rdriver's side: position of the exterior mirrors
on the driver's and front-passenger sides
XMake sure that the SmartKey is in position 2
(Ypage 105) or that the respective door is
open.
XAdjust the seat (Ypage 76) and head restraint
(Ypage 76).
XOn the driver's side, adjust the steering wheel (Ypage 80) and the exterior mirrors
(Ypage 82).
84Memory functions
Seats, steering wheel and mirrors

Exterior lighting
General notes
USA only: if you wish to drive during the daytime
without lights, switch off theDaytime Run‐
ning Lightsfunction via the on-board com-
puter (Ypage 169).
Light switch
Operation
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode, controlled
by the light sensor
5LLow-beam/high-beam headlamps
BRRear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to the Ãposition.
The exterior lighting, except the parking lamps/
standing lamps, switches off automatically if
you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey in
position u
Low-beam headlamps
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps switch on when the ignition is switched on
and the light switch is set to the Lposition.
This is a particularly useful function in the event
of rain and fog.
XTo switch on the low-beam headlamps:
turn the SmartKey to position 2in the igni-
tion lock or start the engine.
XTurn the light switch to the Lposition.
The green Lindicator lamp on the instru-
ment cluster lights up.
Daytime running lamps
Daytime running lamps in Canada
The daytime running lamps function is required
by law in Canada. It cannot therefore be deac-
tivated.
XTurn the light switch to the Ãposition.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are switched
on, the green Lindicator lamp in the
instrument cluster lights up.
When the engine is running and the vehicle is
stationary: if you shift the automatic transmis-
sion from a driving position to position j, the
daytime running lamps or low-beam headlamps
go out after three minutes.
When the engine is running, the vehicle is sta-
tionary and in bright ambient light: if you turn the
light switch to the Tposition, the daytime
running lamps and parking lamps are switched
on.
If the engine is running and you turn the light
switch to the Lposition, the manual settings
take precedence over the daytime running
lamps.
Daytime running lamps in the USA
In the USA, the daytime running lamps are deac-
tivated upon delivery from the factory.
86Exterior lighting
Lights and windshield wipers

XTo switch on the daytime running lamps:
switch on theDaytime Running Lights
function via the on-board computer
(Ypage 169).
XTurn the light switch to the Ãposition.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are switched
on, the green Lindicator lamp in the
instrument cluster lights up.
If the engine is running and you turn the light
switch to the TorL position, the manual
settings take precedence over the daytime run-
ning lamps.
Automatic headlamp mode
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle's light-
ing at all times.
à is the favored light switch setting.
The light setting is automatically selected
according to the brightness of the ambient light,
but not in the event of poor visibility due to
weather conditions such as fog, snow or spray.
XTo switch on the automatic headlamps:
turn the light switch to the Ãposition.
With the SmartKey in position 1in the igni-
tion lock, the parking lamps are switched on
or off automatically depending on the bright-
ness of the ambient light.
If you have switched on the Daytime Run‐
ning Lightsfunction via the on-board com-
puter, the daytime running lamps or the park-
ing lamps and low-beam headlamps will
switch on or off automatically while the
engine is running.
When the low-beam headlamps are switched
on, the green Lindicator lamp in the
instrument cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of thick
fog. You must observe the legal requirements
for the country in which you are currently driving
when operating the rear fog lamp.
XTo switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2or
start the engine.
XTurn the light switch to the LorÃ
position.
XPress the Rbutton.
The yellow Rindicator lamp on the instru-
ment cluster lights up.
Parking lamps
!
If the battery charge is very low, the parking
lamps or standing lamps are automatically
switched off to enable the next engine start.
Always park your vehicle safely and in a well lit
area, in accordance with the relevant legal
stipulations. Avoid using the Tparking
lamps over a period of several hours. If pos-
sible, switch on the right-hand Xor left-
hand W standing lamps.
XTo switch on: turn the light switch to the
T position.
The green Tindicator lamp on the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated.
XTo switch on the standing lamp: turn the
SmartKey to position uin the ignition lock or
remove the SmartKey.
XTurn the light switch to the W(left-hand
side of the vehicle) or X(right-hand side of
the vehicle) position.
Headlamp cleaning system
The headlamps are cleaned automatically if the
"Wipe with washer fluid" function is operated
ten times while the lights are on and the engine
is running (
Ypage 93). When you switch off
Exterior lighting87
Lights and windshield wiper s
Z

Interior lighting
Overview of interior lighting
Front overhead control panel
:p Switches th eleft-han dfron treading
lamp on/off
;t Switches th ecargo compartmen t
lamp/rear compartmen tlighting on/off
=p Switches th eright-hand fron treading
lamp on/off
?| Switches th efron tinterio rlighting /
automatic interio rlighting control off
ASwitches th eautomatic interio rlighting con-
trol on
Bc Switches th efron tinterio rlighting on
Rear-compartment overhead control
panel
:p Switches th eright-hand reading lamp
on/off
;p Switches th eleft-han dreading lamp
on/off
Interior lighting control
General notes
In order to preven tth evehicle's battery from
discharging, th einterior lighting function sare
automatically deactivated after som etime
except for when th eSmartKey is in position 2
in th eignition lock.
The brightness of th einstrumen tcluste rlighting
may be set usin gth econtroller on th einstru-
men tcluste r (
Ypage 160).
Automatic interior lighting control
XTo switch on: moveswitch Ato th ecenter
position (Ypage 89) .
The interior lighting automatically switches on if
you:
Runlock th evehicl e
Ropenadoor
Rremove th eSmartKey from th eignition loc k
XTo switch off :set switch Ato th e|
position . (Ypage 89).
The interior lighting remain sswitched off eve nif
you:
Runlock th evehicl e
Ropenadoor
Rremove th eSmartKey from th eignition loc k
The interior lighting is switched on for aset time
when th eSmartKey is remove dfrom th eignition
lock. You can activat ethis delaye dswitch-off
usin gth eon-board computer (
Ypage 169).
When afron tdoor is opened, th efron tinterior
lighting comes on .When arear door is opened,
th erear interior lights comes on .In addition ,th e
courtesy lights come on .
iIfadoor remain sopen and th eSmartKey is
no tin th eignition lock, th einterior lighting
switches off after ashort while .
Replacing bulbs
Important safety notes
GDANGER
Xenon bulbs carry ahigh voltage. You can get
an electric shock if you remove th ecover of
Replacing bulbs89
Lights and windshield wipers
Z

:Tail lamp/standing lamp: W 5 W
;Brake lamp/tail lamp: P 21/5 W
=Turn signal lamp: PY 21 W
?Backup lamp: P 21 W
ARear fog lamp: P 21 W
Replacing front bulbs
Turn signals
!Make sure that the protective grille does not
hit any painted surfaces.
You could otherwise damage the paintwork.
!Do not fasten the screws too tightly. You
could otherwise damage the lens.
XSwitch off the lights.
XMercedes-AMG vehicles: pull protective
grille :out of mounting ;in the direction of
the arrow and swing up.
XUnscrew screws =.
XRemove lens?.
XTurn bulbAcounter-clockwise, applying
slight pressure, and pull it out of the bulb
holder.
XInsert the new bulb into the bulb holder and,
applying slight pressure, turn it clockwise
until it engages.
XInstall lens ?.
XReplace and tighten screws =.
XMercedes-AMG vehicles:fold down protec-
tive grille :and engage it in mounting ;.
Replacing rear bulbs
Protective grille (Mercedes-AMG vehi-
cles)
!Make sure that the protective grille does not
hit any painted surfaces.
You could otherwise damage the paintwork.
Replacing bulbs91
Lights and windshield wipers
Z