2018 MERCEDES-BENZ G-CLASS brake sensor

Activationconditions
You can activat eth eHOLD function if:
Rth evehicl eis stationary
Rth eengin eis runnin gor if it has been auto -
matically switched off by th eECO start/sto p
function
Rth edriver's door is closed or your seat belt is
fastene d
Rtheparking brak eis release d
Rthetransmission is in position h,kori
RDISTRONI CPLU Sis deactivated
Activating the HOLD function
XMak esur ethat th eactivation condition sare
met .
XDepress th ebrak epedal .
XQuickl ydepress th ebrak epedal further until
ë appear sin th emultifunction display.
The HOLD function is activated. You can
release th ebrak epedal .
If depressing th ebrak epedal th efirst time does
no tactivat eth eHOLD function ,wait briefl yand
then tr yagain .
Deactivating the HOLD function
The HOLD function is deactivated automatically
if:
Ryou depress th eaccelerato rand th etrans -
mission is in position hork
Rthetransmission is in position j
Ryou depress thebrak epedal again wit h acer-
tai namount of pressur euntil ë disap-
pear sfrom th emultifunction display
Ryou activat eDISTRONI CPLU S
On steep uphil lor downhill inclines or if there is
a malfunction ,th etransmission may also be
automatically shifte dint oposition j.
Permanent all-wheel drive
!
Never to wthevehicl ewit hon eaxl eraised.
This may damag eth etransfer case. Damage
of this sor tis no tcovered by th eMercedes-
Benz Limited Warranty. All wheels mus t
remain either on th eground or be fully raised.
Observ eth einstruction sfor towin gth evehi-
cle wit hall wheels in full contact wit hth e
ground .
!When testing th eparking brake, only oper -
ate th evehicl ebriefl y(fo r a maximum of te n
seconds) on abrak edynamometer. Turn th e
SmartKey to position gor1 in th eignition
lock. You could otherwise damag eth edrive
train or th ebrak esystem.
!A function or performance test should only
be carrie dout on atwo-axle dynamometer.
Befor eyou operate th evehicl eon suc h a
dynamometer, pleas econsult aqualified
workshop .You could otherwise damag eth e
drive train or th ebrak esystem.
The all-whee ldrive system ensures that all four
wheels are permanentl ydriven .The all-whee l
drive system improve svehicl etraction together
wit hES P
®and 4ETS if adrive whee lspin sdue to
insufficien tgrip.
If adrive whee lspin sdue to insufficien tgrip:
ROnly depress th eaccelerato rpedal as far as
necessar ywhen pullin gaway.
RTak eyour foo toff th eaccelerator, slowly,
while th evehicl eis in motion .
In wintr ydrivin gconditions, always use winte r
tires (M+ Stires )and if necessary, snow chain s
(
Ypage 259). Only in this way can th emaximum
effec tof all-whee ldrive be achieved.
Fo rinformation on drivin goff-road, see
(
Ypage 129).
PARKTRONIC
Import ant safety notes
PARKTRONI Cis an electronic parking aid wit h
ultrasonic sensors. It monitors th earea around
your vehicl eusin gsix sensor sin th efron t
bumper and four sensor sin th erear bumper.
PARKTRONI Cindicates visually and audibly th e
distanc ebetween your vehicl eand an object.
PARKTRONI Cis only an aid. It is no t areplace -
men tfor your attention to your immediat esur -
roundings. You are always responsibl efor saf e
maneuvering, parking and exiting aparking
space. Mak esur ethat there are no persons,
animals or objects in th emaneuverin garea
while maneuverin gand parking in/leaving park -
ing spaces.
!When parking ,pay particular attention to
objects abov eor belo wthesensors, suc has
flower pot sor trailer drawbars .PARKTRONI C
does no tdetec tsuc hobjects when they are in
Driving systems143
Driving and parking
Z

the immediate vicinity of the vehicle. You
could damage the vehicle or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic car
wash, the compressed-air brakes on a truck
or a pneumatic drill could cause PARKTRONIC
to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to position h,kor
i
Rrelease the parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
Range of the sensors
PARKTRONIC does not take objects into con-
sideration that are:
Rbelow the detection range, e.g. people, ani-
mals or objects.
Rabove the detection range, e.g. overhanging
loads, tail sections or loading ramps of goods
vehicles
:Example: sensors in the front bumper, right- hand side
:Approx. 24 in (approx. 60 cm) (corners)
;Approx. 32 in (approx. 80 cm) (corners)
=Approx. 35 in (approx. 90 cm) (center)
?Approx. 40 in (approx. 100 cm) (center)
The sensors must be free from dirt, ice or slush.
They can otherwise not function correctly. Clean
the sensors regularly, taking care not to scratch
or damage them (
Ypage 239).
Minimum distance
CenterApprox. 8 in (approx. 20 cm)
CornersApprox. 8 in (approx. 20 cm)
If there is an obstacle within this range, the rel-
evant warning displays light up and a warning
tone sounds. If the distance falls below the min-
imum, the distance may no longer be shown.
144Driving system s
Driving an d parking

Display messagesPossible causes/consequences andMSolutions
Blind SpotAssistCurrently Unavaila‐ble
See Operator' sMan ‐ual
Blind Spot Assis tis temporarily inoperative. Possibl ecauses are:
RYou hav eestablished th eelectrical connection between th etrailer
and your vehicle.
RThe sensor sare dirty.
RFunction is impaire ddue to heav yrain or snow.
RThe radar sensor system is outside th eoperating temperature
range.
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
The yellow 9indicator lamp salso ligh tup in th eexterio rmirrors.
XWhe ntowin g atrailer ,confirm th edisplay message wit ha.
If you are drivin gwithout atrailer and th edisplay message does no t
disappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XApply th eparking brake.
XClean th esensor s (Ypage 239).
XRestart th eengine.
If th esystem detects that th esensor sare full yoperational, th edisplay
message disappears.
Blind Spot Assis tis operational again .
Blind SpotAssistNot Available Whe nTowingaTraile rSee Operator' sMan ‐ual
Blind Spot Assis tis deactivated while towin g atrailer .
You hav eestablished th eelectrical connection between th etrailer and
your vehicle.
XPress aon thesteering whee lto confirm th edisplay message .
Blind SpotAssist
Inoperative
Blind Spot Assis tis malfunctioning .
The yellow 9indicator lamp salso ligh tup in th eexterio rmirrors.
XVisit aqualified specialist workshop .
DISTRONIC PLUS
Off
DISTRONICPLU Shas been deactivated (Ypage 134).
If it was deactivated automatically, awarning tone also sounds.
DISTRONIC PLU S
Now Available
DISTRONICPLU Sis operational again after having been temporarily
unavailable .You can no wreactivat eDISTRONI CPLU S (Ypage 134).
Display messages185
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
DISTRONIC PLUS
Currently Unavaila‐ble See Operator' sManual
DISTRONICis deactivated and temporarily inoperative. Possibl ecau-
ses are:
RThe DISTRONI CPLU Scover in th eradiato rtrim is dirty
RFunction is impaire ddue to heav yrain or snow.
RThe sensor sin th ebumpers are dirty.
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
RThe system is outside th eoperating temperature range.
RThe transfer cas eis in th eLOW RANGE transmission position .
RThe vehicleis on an uphil lor adownhill slop eof mor ethan
22 ‑25 %
RThe on-boar dvoltag eis to olow.
A warning tone also sounds.
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XApply th eparking brake.
XClean th eDISTRONI CPLU Scover in th eradiato rtrim and th e
bumper (Ypage 239).
XRestart th eengine.
If th esystem detects that th esensor sare full yoperational, th edisplay
message disappears.
DISTRONI CPLU Sis operational again .
DISTRONIC PLUS
Inoperative
DISTRONICPLU Sis malfunctioning
BA S(anti-lock braking system) may also hav efailed.
A warning tone also sounds.
XVisit aqualified specialist workshop .
DISTRONIC PLUS
Suspended
You havedepressed th eaccelerato rpedal .DISTRONI CPLU Sis no
longer controllin gth espeed of th evehicle.
XRemove your foo tfrom th eaccelerato rpedal .
DISTRONIC PLU S
- - -mph
An activation condition for DISTRONI CPLU Sis no tfulfilled .
XCheckth eactivation condition sfor DISTRONI CPLU S (Ypage 134).
Cruise Contro l
- - -mph
Acondition for activating cruise control has no tbeen fulfilled .
You hav etried to store aspeed belo w20 mph (30 km/ h), for example.
XIf conditions permit, drive faster than 20 mph (30 km/ h)and store
the speed.
XCheck the activation conditions for cruise control (Ypage 133).
186Display messages
On-board computer and displays

!Do not park your vehicle for a long period of
time directly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore,
drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a
long period of time.
Cleaning the windows
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows. Do
not touch the insides of the windows with
hard objects, e.g. an ice scraper or ring. There
is otherwise a risk of damaging the windows.
!Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals and pollen may under certain circumstances pre-
vent water from draining away. This can lead
to corrosion damage and damage to elec-
tronic components.
XClean the inside and outside of the windows
with a damp cloth and a cleaning product that
is recommended and approved by Mercedes-
Benz.
Cleaning wiper blades
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not pull the wiper blade. Otherwise, the
wiper blade could be damaged.
!Do not clean wiper blades too often and do
not rub them too hard. Otherwise, the graph-
ite coating could be damaged. This could
cause wiper noise.
!Hold the wiper arm securely when folding
back. The windshield could be damaged if the
wiper arm smacks against it suddenly.
XFold the windshield wiper arms away from the
windshield.
XCarefully clean the wiper blades with a damp
cloth.
XFold the windshield wiper arms back again
before switching on the ignition.
Cleaning the exterior lighting
!Only use cleaning agents or cleaning cloths
which are suitable for plastic light lenses.
Unsuitable cleaning agents or cleaning cloths
could scratch or damage the plastic light len- ses.
XClean the plastic lenses of the exterior light-
ing using a wet sponge and a mild cleaning
agent, e.g. Mercedes-Benz car shampoo or
cleaning cloths.
Cleaning the mirror turn signals
!Only use cleaning agents or cleaning cloths
that are suitable for plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
mirror turn signals.
XClean the plastic lenses of the mirror turn sig-
nals in the exterior mirror housing using a wet
sponge and mild cleaning agent, e.g.
Mercedes-Benz car shampoo or cleaning
cloths.
Cleaning the sensors
!If you clean the sensors with a power
washer, make sure that you keep a distance
of at least 11.8 in (30 cm) between the vehicle
and the power washer nozzle. Information
about the correct distance is available from
the equipment manufacturer.
Care239
Maintenance and care
Z