2018 MERCEDES-BENZ GLE COUPE parking brake

XSlide boltAinto the hole in the ball coupling
recess and the ball coupling to the stop.
XSecure the bolt using spring cotter B.
XCheck the ball coupling, bolt and spring cotter
for correct installation.
If the ball coupling cannot be correctly mounted,
remove the ball coupling. Under these circum-
stances, the ball coupling must not be used for
trailer towing.
Have the entire trailer tow hitch checked at a
qualified specialist workshop.
Coupling up a trailer
!
Do not connect the trailer's brake system (if
featured) to the hydraulic brake system of the
towing vehicle, as the latter is equipped with
an anti-lock brake system. Doing so will result
in a loss of function of the brake systems of
both the vehicle and the trailer.
XShift the transmission to position P.
XApply the vehicle's electric parking brake.
XStart the engine.
XVehicles with AIRMATIC package: select
normal level and the Comfortdrive program.
XSwitch off the engine.
XClose the doors and tailgate.
XCouple up the trailer.
XEstablish the electrical connection between
the vehicle and the trailer.
XCheck that the trailer lighting system is work-
ing.
XPush the combination switch upwards/down-
wards and check whether the corresponding
turn signal on the trailer flashes.
A trailer that is connected is recognized only
when the electrical connection is established
correctly and when the lighting system is work-
ing properly. The function of other systems also
depends on this, for example:
RESP®
RParking Assist PARKTRONIC
RParking Pilot
RActive Blind Spot Assist
RActive Lane Keeping Assist
iVehicles with the AIRMATIC package: if you
couple up a trailer, the vehicle always remains
at normal level. When coupling up a trailer,
please observe the foll
owing:
RIf the normal level has not been set man-
ually, the vehicle is automatically lowered
to normal level. This is the case if a speed of
5 mph (8 km/h) is reached.
RThe
Sport drive program is not available.
These restrictions apply to all accessories
powered through a connection to the trailer
power socket of your vehicle, e.g. a bicycle
carrier.
Observe the maximum permissible trailer
dimensions (width and length).
222Towing a trailer
Driving and parking

Most U.S. states and all Canadian provinces
require by law:
RSafety chains between the towing vehicle and
the trailer. The chains should be cross-wound
under the trailer drawbar. They must be fas-
tened to the vehicle's trailer coupling, not to
the bumper or the axle.
Leave enough play in the chains to make tight
cornering possible.
RA separate brake system for certain types of
trailer.
RSafety switch for braked trailers. Check the
specific legal requirements applicable to your
state.
If the trailer becomes detached from the tow-
ing vehicle, the safety feature triggers the
trailer brakes.
Towing a trailer
There are numerous legal requirements con-
cerning the towing of a trailer, e.g. speed restric-
tions. Make sure that your car/trailer combina-tion complies with the local regulations:
Rin your place of residence
Rin the location to which you are driving
The police and local authorities can provide reli-
able information.
Observe the following when towing a trailer:
RTo gain driving experience and to become
accustomed to the new handling characteris-
tics, you should practice the following in a
traffic-free location:
-cornering
-stopping
-backing up
RBefore driving, check:
-trailer tow hitch
-safety switch for braked trailers
-safety chains
-electrical connections
-lights
-wheels
RAdjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
RIf the trailer has electronically controlled
brakes, pull away carefully. Brake manually using the brake controller and check whether
the brakes function correctly.
RSecure any objects on the trailer to prevent
the cargo from slipping when the vehicle is in
motion.
RWhen you couple up a trailer, check at regular
intervals that the load is firmly secured. If the
trailer is equipped with trailer lights and
brakes, check the trailer to ensure that these
are working.
RBear in mind that the handling will be less
stable when towing a trailer than when driving
without one. Avoid sudden steering move-
ments.
RThe vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
RIf possible, do not brake suddenly, but instead
depress the brake pedal moderately at first so
that the trailer can activate its brakes. Then
increase the pressure on the brake pedal.
RIf the automatic transmission repeatedly
shifts between gears on uphill or downhill gra-
dients, shift to a lower gear using the left-hand
steering wheel paddle shifter.
A lower gear and lower speed reduce the risk
of engine failure.
RWhen driving downhill, shift to a lower gear to
utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if instal-
led, the trailer brakes.
RIf the coolant temperature increases dramat-
ically while the air-condit ioning system is
switched on, switch off the air-conditioning
system.
Coolant heat can also be dissipated by open-
ing the windows and switching the ventilation blower and the interior temperature to the
highest level.
RWhen overtaking, pay particular attention to
the extended length of your vehicle/trailer
combination.
Due to the length of the vehicle/trailer com-
bination, you require additional road space in
relation to the vehicle you are overtaking
before you can change back to the original
lane.
Towing a trailer223
Driving and parking
Z

Decouplingatrailer
GWARNING
If you uncoupl e atrailer wit hth eoverrun
brake engaged, you could trap your han d
between th evehicle and th etrailer drawbar .
There is aris kof injury.
Do no tuncoupl e atrailer if th eoverrun brake
is engaged.
GWARNING
Vehicles wit hlevel control:
The vehicle is lowered as soo nas you discon-
nect th etrailer cable. Thi scould result in your
limbs or those of other people that are
between th evehicle bod yand tires or under-
neat hth evehicle bein gtrapped. There is a
ris kof injury.
Mak esur ethat nobod yis in th eimmediate
vicinit yof th ewhee lhousings or under th e
vehicle when you disconnec tth etrailer cable.
!Do no tdisconnec t atrailer wit han engage d
overrun brake .Otherwise ,your vehicle could
be damaged by th ereboundin gof th eoverrun
brake .
XShift th etransmissio nto position P.
XApply thevehicle' selectric parking brake .
XStart theengine.
XClos eth edoors and tailgate.
XApply th etrailer's parking brake .
XDetach thetrailer cable and decoupl eth e
trailer .
XSwitchof fth eengine.
Permissible trailer loads an ddrawbar
loads
Weight specifications
Maximum allowable gross mass
The gross vehicle weight of th etrailer is calcu-
lated by addin gth eweight of th etrailer to th e
weight of th eload and equipmen ton th etrailer .
You will fin dinstallin gdimensions and load s
under "Technical data" (
Ypage 394).
Permissible noseweigh t
You will findinstallin gdimensions and load s
under "Technical data" (Ypage 394).
Loadingatrailer
RWhe nloadin gth etrailer ,mak esur ethat nei-
ther th epermissible gross weight of th etrailer
no rth egross vehicle weight are exceeded.
The permissible gross vehicle weight is indi-
cated on th eidentification plat elocated on
th eB-pilla ron th edriver's sid eof th evehicle.
You can fin dth emaximum permissible values
on th etyp eplates of your vehicle and th e
trailer .Whe ncalculatin ghow muc hweight
th evehicle and trailer may carry, pay atten-
tion to th erespective lowest values.
RThe trailer drawbar load on th eball couplin g
mus tbe adde dto th erea raxl eload to avoid
exceedin gth epermissible gross axl eweight .
The permissible gross vehicle weight is indi-
cated on th eidentification plat elocated on
th eB-pilla ron th edriver's sid eof th evehicle.
iMercedes-Ben zrecommends atrailer load
wher eth etrailer drawbar noseweigh t
accounts fo r 8 %to 15 %of th etrailer's per -
missible gross weight .
iThe weight of additional accessories ,pas-
sengers, and cargo reduce sth epermissible
trailer load and drawbar load fo ryour vehicle.
Checking th evehicle an dtrailer weigh t
RTo checkthat th eweight sof th etowin gvehi-
cl e and th etrailer compl ywit hth emaximum
permissible values, hav eth evehicle/trailer
combination (includin gth edriver ,passen -
gers, and cargo wit h afullylade ntrailer )
weighed on acalibrated weighbridge .
RCheckth egross axl eweight ratin gof th efron t
and rea raxles, th egross weight of th etrailer
and th etrailer drawbar noseweight.
Removin gth eball coupling
XRemov eth esprin gcotter.
XRemov eth ebolt from th eball couplin g
recess .
XRemov eth eball couplin gfrom th eball cou-
plin grecess .
224Towing a trailer
Driving and parking

Display messagesPossible causes/consequences andMSolutions
T!
÷
Inoperative SeeOperator' sManual
EB D(electronic brak eforce distribution), AB Sand ES P®are malfunc -
tioning .
Other drivin gsystems and drivin gsafet ysystems may also malfunc -
tion .
In addition ,th e÷, åand! warning lamp sligh tup in th e
instrumen tcluste rand awarning tone sounds.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The wheels could therefor eloc kif you brak e
hard, for example.
The steerabilit yand braking characteristics may be severely affected.
The braking distanc ein an emergenc ybraking situation can increase.
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increased ris kof skiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
F(US A
only)
!(Canada
only)
Tur nOn the Igni‐
tio ntoReleas etheParkingBrake
The red F(USAonly) or !(Canada only) indicator lamp lights
up.
You attempte dto release th eelectric parking brak ewhile th eignition
was switched off .
XSmartKey:insert th eSmartKey int oth eignition loc kand tur nto
position 1.
XKEYLESS-GO: switch on theignition .
F(USA
only)
!(Canada
only)
Please
Releas ePark‐ing Brake
The red F(USAonly) or !(Canada only) indicator lamp flashes
and awarning tone sounds. Acondition for automatic release of th e
electric parking brak eis no tfulfilled (
Ypage 157).
You are drivin gwit hth eelectric parking brak eapplied.
XReleas eth eelectric parking brak emanually.
The red F(USAonly) or !(Canada only) indicator lamp flashes
and awarning tone sounds.
You are usin gth eelectric parking brak efor emergenc ybraking
(
Ypage 157).
F(US A
only)
!(Canada
only)
Parkin gBrake See
Operator' sManual
The yellow !warning lamp lights up.
The electric parking brak eis malfunctioning .
To apply :
XSwitchth eignition off .
XPress theelectric parking brak ehandle for at least te nseconds.
XShift th etransmission to position j.
XConsult aqualified specialist workshop .
246Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning .
XSwitchoff th eignition and tur nit bac kon .
XApply th eelectric parking brake.
If it is no tpossibl eto engage th eelectric parking brake:
XShift th etransmission to position j.
XVisitaqualified specialist workshop .
If it is no tpossibl eto release th eelectric parking brake:
XReleas eth eelectric parking brak eautomatically (Ypage 157).
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
The yellow!warning lamp lights up. If you manually apply or
release th eelectric parking brake, th ered F (USAonly) or !
(Canada only) indicator lamp flashes .
The electric parking brak eis malfunctioning .It is no tpossibl eto apply
th eelectric parking brak emanually.
XShift th etransmission to position j.
XVisit aqualified specialist workshop .
F(USA
only)
!(Canada
only)
Parkin gBrake Inop‐
erativ e
The yellow !warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning ,e.g. because of over-
voltag eor undervoltage.
XRemove th ecaus efor th eovervoltage or undervoltage, e.g. by
charging th ebattery or restarting th eengine.
XEngage or release th eelectric parking brake.
If it remain simpossible to apply or release th eelectric parking brake:
XSwitc hoff th eignition and tur nit bac kon .
XEngage or release th eelectric parking brake.
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
If th eelectric parking brak estill canno tbe applied:
XVisit aqualified specialist workshop .
248Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position j.
XVisit aqualified specialist workshop .
$(USAonly)
J(Canada only)
Check Brake Fluid
Level
There is no tenough brak efluid in th ebrak efluid reservoir .In addition ,
th e$ (USAonly) or J(Canada only) warning lamp lights up in
th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 156).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th e$ red brak esystem warning lamp is lit while th e
engin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
ActiveBrakeAssistFunctionsCurrentlyLimitedSee Opera‐tor's Manual
Active Brake Assis twit hcross-traffic function is temporarily inopera-
tive.
Possibl ecauses are:
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 on-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis twit hcross-traffic function or PRE ‑S AF E
®PLU Sis
functional again .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 156).
XRestart th eengine.
Display messages24 9
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
ý
Different.Loc kSys.Malfunction
The differential loc kis faulty.
XDo no tdrive at speeds abov e50 mph (80 km/h).
XVisit aqualified specialist workshop .
ý
Different.Lockin gSys.Coolin gDow nPlease Wai t
The differential loc kis to ohot and has been disengaged .
XDrive on carefully.
XAllow thedifferential loc kto cool down .
The differential loc kre-engage sas soo nas it has cooled down .
LOW RANGE StopApply ParkingBrakeAgearshift process has been canceled. LOW RANGE is in th eneutral
position .There is no connection between th eengin eand th edrive
wheels.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XApply th eelectric parking brake. Do no tcontinu edrivin gunder any
circumstances.
XRepeat th egearshift process.
LOW RANGE Malfunc‐tio nToPark,ApplyBrake
LOW RANGE is malfunctioning .
XDo notdrive at speeds abov e50 mph (80 km/h).
XWhe nparking ,secure th evehicl eagainst rollin gaway (Ypage 156).
XVisitaqualified specialist workshop .
LOW RANGE Max.Speed 25 mphYou haveexceeded th emaximum speed for th egearshift process.
XDrive mor eslowly.
The gear chang eis made .
LOW RANGE Max .Speed 40 mphYou haveexceeded th emaximum speed for th egearshift process.
XDrive mor eslowly.
The gear chang eis made .
LOW RANGE Shift toPosition NBriefl yYou hav ereduce dth evehicl espeed, but th eautomatic transmission
is no tin position i.
XBriefly shift th eautomatic transmission to i.
LOW RANGE ShiftingCanceled PleaseReactivate
The gearshift process has been canceled.
XRepeat thegearshift process.
Ã
Inoperative
DS R(Downhill Speed Regulation )is deactivated due to amalfunction .
XHaveDS Rchecke dat aqualified specialist workshop .
262Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
ServiceRequiredDoNot Shift GearsVisit Dealer
You canno tchang eth etransmission position due to amalfunction .
A warning tone also sounds.
If transmission position his selected:
XDrive to aqualified specialist workshop without shifting th etrans -
mission from position h.
If position k,iorj is selected:
XSecur eth evehicl eagainst rollin gaway (Ypage 156).
XNotify aqualified specialist workshop or breakdown service.
ReversingNotPossi‐bleServic eRequiredYou can no longer shift to transmission position kdue to amalfunc -
tion .
Transmission position sj, iorh continu eto be available.
A warning tone also sounds.
XVisit aqualified specialist workshop .
Transmission Mal‐function StopAmalfunction has occurred in th emechanical transmission compo -
nents.
A warning tone also sounds. The transmission shift sautomatically to
position i.
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position j.
XSecur eth evehicl eagainst rollin gaway (Ypage 156).
XNotify aqualified specialist workshop or breakdown service.
Auxiliary Batter yMalfunctionThe auxiliary battery for th eautomatic transmission is no longer bein g
charged.
XVisit aqualified specialist workshop .
XUntilthen ,always set th eautomatic transmission to position j
before switching off th eengine.
XBefor eleaving th evehicle, apply th eelectric parking brake.
AThe tailgat eis open
GWARNIN G
Whe nth eengin eis running, exhaust gase scan ente rth evehicl einte-
rio rif th etailgat eis open .
There is aris kof poisoning .
XCloseth etailgate.
Display messages27 1
On-board computer and displays
Z