ignition MERCEDES-BENZ GLE-CLASS SUV 2016 Repair Manual

Problems with fuel and the fuel tank
ProblemPossible causes/consequences andMSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function or KEYLESS ‑GO
XOpen the driver's door.
The on-board electronics now have status0. This is the same as the
SmartKey having been removed.
XDo not restart the engine under any circumstances.
XConsult a qualified specialist workshop.
The engine does not
start.The fuel tank of a vehicle with a diesel engine has been run completely
dry.
XRefuel the vehicle with at least 5.3 US qt (5 liters) of diesel.
XTurn the ignition on for approximately ten seconds (Ypage 145).
XStart the engine continuously for up to ten seconds until it runs
smoothly.
If the engine does not start:
XTurn the ignition on again for approximately ten seconds
(Ypage 145).
XStart the engine again continuously for up to ten seconds until it
runs smoothly.
If the engine does not start after three attempts:
XConsult a qualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 78).
XPLUG-IN HYBRID Vehicles: depressurize the fuel tank
(Ypage 163).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 80).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult a qualified specialist workshop.
166Refueling
Driving and parking

DEF (BlueTECvehicles only )
General notes
To function properly, BlueTE Cexhaus tgas after-
treatmen tmus tbe operated wit hth ereducing
agen tDEF. Addin gDE Fis on eof th etask sper -
formed durin gmaintenance .Under normal
operatin gconditions, atank of DE Flast suntil
th enext servic edue date.
Whe nth esupply of DE Fis almost used up, th e
Check Additive See Operator' sManual
messag eis shown in th emultifunction display.
If you drive th evehicle faste rthan 10 mph
(16 km/h), th eCheck Additive See Opera‐
tor's Manualmessag egoe sout after approx -
imately on eminute.
Whe nth eDE Fsupply drops to aminimum ,th e
Remaining Starts :16
messag eis shown in
th emultifunction display.
If th eRemaining Starts :16
messag e
appears in th emultifunction display, you can
start th eengin eanother 16 times .If DE Fis no t
refilled, you will subsequently be unable to
star tth eengine.
XAd dat leas t 1gal (3. 8l) of DEF.
XSwitc hon th eignition fo rat leas t60 seconds.
XStart th eengine.
iHav eth eDE Ftank refille dat aqualified spe -
cialis tworkshop .
Use th especial DE Frefill bottl ewhen addin g
DE Fbetween maintenance intervals. You can
obtain further information from an authorized
Mercedes-Ben zCente ror ,if necessary, contact
Roadside Assistanc e (
Ypage 27).
If th eoutsid etemperature is belo w12 ‡(Ò11 †)
it may be difficult to top up. If DEF is frozen and
there is an active warning indicator, it may not
be possible to add DEF. Park the vehicle in a
warmer place, e.g. in a garage, until DEF has
become fluid again. It will then be possible to
add DEF again. Alternatively, have the DEF tank
refilled at a qualified specialist workshop.
Further information about BlueTEC exhaust gas aftertreatment and DEF is available at any
authorized Mercedes-Benz Center.
Important safety notes
DEF is a water-soluble fluid for the exhaust gas
aftertreatment of diesel engines. It is:
Rnot poisonous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released.
Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence a burning sensation in your eyes, nose and
throat. Coughing and watering of the eyes are
possible.
Do not inhale ammonia vapors. Fill the DEF tank
only in well-ventilated areas.
DEF must not come into contact with your skin,
eyes or clothing and must not be swallowed.
Keep DEF away from children.
If you or other persons come into contact with
DEF, observe the following:
RRinse DEF from your skin immediately with
soap and water.
RIf DEF comes into contact with your eyes,
immediately rinse them thoroughly with clean
water. Seek medical assistance without
delay.
RIf DEF has been swallowed, rinse your mouth
out immediately. Drink plenty of water. Seek
medical assistance without delay.
RChange out of clothing contaminated with
DEF immediately.
!Only use DEF in accordance with
ISO 22241. Do not mix any additives with
DEF, and do not dilute DEF with water. This
may destroy the BlueTEC exhaust gas after-
treatment system.
!The vehicle must be parked on level ground
to fill the DEF tank. The DEF tank can only be
filled as intended with the vehicle parked on a
level surface. This avoids false level readings. Filling the tank is not permitted if the vehicle
is not parked on a level surface. There is a
danger of overfil
ling, which could result in
damage to components of the BlueTEC
exhaust gas aftertreatment.
!Rinse surfaces that have come into contact
with DEF immediately with water or remove
DEF using a damp cloth and cold water. If the
DEF has already crystallized, use a sponge
Refueling167
Driving and parking
Z

and cold water to clean it. DEF residues crys-
tallize after time and contaminate the affec-
ted surfaces.
!DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to the
fuel tank, this can lead to engine damage.
For further information on DEF, see
(
Ypage 436).
Opening the DEF filler cap
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the SmartKey or with KEYLESS-GO.
XSwitch the ignition off.
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
XTurn blue DEF fuel filler cap ;counter-clock-
wise and remove it.
DEF filler cap ;is secured with a plastic
strip.
DEF refill canisters
!Do not tighten the disposable hose with too
much force. The disposable hose may other-
wise be destroyed.
XUnscrew the cap from the opening on top of
DEF refill canister ;.
XPlace disposable hose :on the opening of
DEF refill canister ;and screw it on clock-
wise until hand-tight.
iDisposable hose :remains closed until
you fasten disposable hose :to the DEF
filler neck of the vehicle.
XPlace disposable hose :on the filler neck on
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose :is sufficiently secured.
XLift up and tip DEF refill canister ;.
iFilling stops when the DEF tank is com-
pletely filled. Do not fill the DEF tank any fur-
ther. DEF refill canister ;can be removed
when it has been only partially emptied.
XTurn disposable hose :on the filler neck of
the vehicle counter-clockwise and remove it.
XTurn disposable hose :on the opening of
DEF refill canister ;counter-clockwise and
remove it.
XReseal DEF refill canister ;with the cap.
DEF refill canisters can be obtained at many gas
stations or at an authorized Mercedes-Benz
Center. DEF refill canisters are often sold with a
filler hose. A filler hose that does not exactly fit
168Refueling
Driving and parking

Indicator
lamp
Lights up
orangeA charging break for the high-
voltage battery is taking
place.
The indicator lamp goes out
after approximately
90 seconds.
Lights up
greenThe high-voltage battery is
fully charged.
The indicator lamp goes out
after approximately
90 seconds.
iIf the indicator lamp is off, lock or unlock the
vehicle. The indicator lamp then displays the
current status of the charging process again.
Connecting the charging cable
XShift the transmission to position P.
XSwitch the ignition off.
XPress the charge socket flap in the direction
of arrow:.
The charge socket flap swings up.
XPress fastener ;to the left.
Socket cap =is open.
XInsert the power supply plug into the electri-
cal outlet to the stop.
XInsert the charging cable connector into vehi-
cle socket ?to the stop.
Indicator lamp Afirst flashes orange and
then green.
The high-voltage battery is being charged.
If the charging cable is plugged in to the vehicle, you cannot start the engine or move the vehicle.
When the charging process begins, you can view
the charging prediction in the Settings
menu
of the on-board computer. The charging predic-
tion is either the anticipated condition of charge
at the programmed departure time or the time
when the high-voltage battery will be fully
charged (
Ypage 274).
iDepending on the temperature, the fan and
battery cooling system may audibly switch on
during the charging process.
Removing the charging cable
The high-voltage battery is fully charged when:
Rthe charge level display reaches 100% in the
multifunction display (Ypage 247)
Rthe indicator lamp in the vehicle socket lights up green after unlocking or locking the vehicle
XPress and hold button Bon the charging
cable connector and remove the charging
cable connector from the vehicle socket.
XClose socket cap =.
XClose charge socket flap :.
XRemove the mains plug from the mains
socket and safely stow away the charging
cable inside the vehicle (
Ypage 172).
174Charging the high-voltage battery
Driving and parking

Charging the high-voltage battery
from the wallbox
General notes
It is recommended that you charge your vehicle
using a wallbox or at a charging station.
Make sure that the maximum charging current is
not limited in the Settings
menu of the on-
board computer. You must select the maximum
value if charging at a wallbox or a charging sta-
tion (
Ypage 273).
Pay attention to the "Important safety notes"
(
Ypage 169).
Connecting the charging cable
XShift the transmission to position P.
XSwitch the ignition off.
XPress the charge socket flap in direction of
arrow:.
The charge socket flap swings up.
XPress fastener ;to the left.
Socket cap =is open.
XInsert the charging cable connector into vehi-
cle socket ?to the stop.
Indicator lamp Afirst flashes orange and
then green. The high-voltage battery is being charged.
If the charging cable is plugged in to the vehicle, you cannot start the engine or move the vehicle.
When the charging process begins, you can view
the charging prediction in the Settings
menu
of the on-board computer. The charging predic-
tion is either the anticipated condition of charge at the programmed departure time or the time
when the high-voltage battery will be fully
charged (
Ypage 274).
iDepending on the temperature, the fan and
battery cooling system may audibly switch on
during the charging process.
Removing the charging cable
The high-voltage battery is fully charged when:
Rthe charge level display reaches 100% in the
multifunction display (Ypage 247)
Rthe indicator lamp in the vehicle socket lights up green after unlocking or locking the vehicle
XPress and hold button Bon the charging
cable connector and remove the charging
cable connector from the vehicle socket.
XClose socket cap =.
XClose charge socket flap :.
Charging the high-voltage battery at
the charging station
Before beginning the charging process at a
charging station without communication capa-
bilities, you must first activate the station, e.g.
using an RFID card. Observe the on-site opera-
tor instructions for the charging station.
The connection for the vehicle at a charging sta-
tion is identical to the connection on a wallbox
(
Ypage 175).
Charging the high-voltage battery175
Driving and parking
Z

Every person who has access to the informa-
tion stated can use the functions of the online
access to the vehicle.
iInformation when selling a vehicle or
buying a used vehicle:
RIf you sell your vehicle, you are obliged to
delete the vehicle from your personal area
on the online access to the vehicle.
RIf you have bought a used vehicle, it is pos-
sible that the previous owner still has
access to the online access to the vehicle.
Calling up functions
The online access to the vehicle allows you
access to your vehicle's information and func-
tions using remote query and remote configu-
ration.
The following functions can be accessed:
Rrequest the current condition of charge of the
high-voltage battery
Rprogram the departure time (Ypage 274)
Rset or activate the "Pre-entry climate control
at departure time" function (see the separate
COMAND operating instructions)
Information on additional functions and operat- ing instructions can be found within the online
access to the vehicle.
Connecting the vehicle to the Internet
iThis function is not available in all countries
and requires activated access to the mbrace
emergency call system.
You can use the online access to the vehicle if
the vehicle has a connection to the Internet via a mobile phone network. The necessary data is
transmitted by radio. The vehicle automatically
recognizes whether a connection to the Internet
is possible or not. No presets are necessary.
iRestrictions in reception are possible if the
vehicle is in an underground car park, for
example. Restrictions may also occur in areas with poor mobile network coverage.
Parking
Important safety notes
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. 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 unsupervised in the vehicle.
!Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
Rthe electric parking brake must be applied.
Rthe transmission must be in position Pand the
SmartKey must be removed from the ignition
lock.
Rthe front wheels must be turned towards the
curb on steep uphill or downhill gradients.
Rthe empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
Ra laden vehicle must also be secured at the
rear axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
178Parking
Driving an d parking

Switching off the engine
Important safety notes
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Using the SmartKey
XApply the electric parking brake.
XShift the transmission to position P.
XTurn the SmartKey to position0in the ignition
lock and remove it.
The immobilizer is activated.
If you switch the engine off with the transmis-
sion in position Ror D, the automatic transmis-
sion shifts to Nautomatically.
If you then open the driver's door or the front-
passenger door or remove the SmartKey from
the ignition, the automatic transmission shifts
to Pautomatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing system:
XSwitch on the ignition.
XDepress the brake pedal and keep it
depressed.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
Using KEYLESS-GO
XApply the electric parking brake.
XShift the transmission to position P.
XPress the Start/Stop button (Ypage 146)
The engine stops and all the indicator lamps in
the instrument cluster go out. If you switch the engine off with the transmis-
sion in position
Ror D, the automatic transmis-
sion shifts to Nautomatically.
If you then open the driver's or front-passenger door, the automatic transmission shifts to P
automatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing
system:
XRemove the Start/Stop button from the igni-
tion lock.
XInsert the SmartKey into the ignition lock.
XSwitch on the ignition.
XDepress the brake pedal and keep it
depressed.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
iThe engine can be switched off in an emer-
gency while the vehicle is in motion by press-
ing and holding the Start/Stop button for
three seconds.
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. 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 unsupervised in the vehicle.
Parking179
Driving and parking
Z

The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction in
the system, it may not be possible to apply the
released parking brake.
XIf this is the case, only park the vehicle on
level ground and secure it to prevent it rolling
away.
XShift the automatic transmission to position
P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a
qualified specialist workshop.
iThe electric parking brake performs a func-
tion test at regular intervals while the engine
is switched off. The sounds that can be heard
while this is occurring are normal.
Applying or releasing manually
XTo engage: push handle :.
When the electric parking brake is engaged,
the F (USA only) or !(Canada only)
red indicator lamp lights up in the instrument
cluster.
iThe electric parking brake can also be
applied when the SmartKey is removed.
XTo release: pull handle:.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster goes out.
iThe electric parking brake can only be
released:
Rif the SmartKey is in position 1in the igni-
tion lock (Ypage 145) or
Rif the ignition was switched on using the
Start/Stop button To ensure that you do not roll backwards when
pulling away on an uphill slope, engage the elec-
tric parking brake (
Ypage 149).
Applying automatically
The electric parking brake is automatically
applied when the transmission is in position P
and:
Rthe engine is switched off or
Rthe driver is not wearing a seat belt and the
driver's door is opened.
To prevent the electric parking brake from being
automatically applied, pull handle :.
The electric parking brake is also engaged auto- matically if:
RDISTRONIC PLUS brings the vehicle to a
standstill or
Rthe HOLD function is keeping the vehicle sta-tionary
RActive Parking Assist is keeping the vehicle
stationary
In addition, at least one of the following condi-
tions must be fulfilled:
Rthe engine is switched off
Rthe driver is not wearing a seat belt and the
driver's door is opened
Rthere is a system malfunction
Rthe power supply is insufficient
Rthe vehicle is stationary for a lengthy period
The red F(USA only) or !(Canada only)
indicator lamp in the instrument cluster lights
up.
The electric parking brake is not automatically
engaged if the engine is switched off by the ECO
start/stop function.
Releasing automatically
The electric parking brake is released automat-
ically when all of the following conditions are
fulfilled:
Rthe engine is running.
Rthe transmission is in position Dor R.
Rthe seat belt has been fastened.
Ryou depress the accelerator pedal.
If the transmission is in position R, the trunk lid
must be closed.
180Parking
Driving and parking

If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
Rthe driver's door is closed.
Ryou have shifted out of transmission position
Por you have previously driven faster than
2 mph (3 km/h).
iEnsure that you do not depress the accel-
erator pedal unintentionally. Otherwise the
parking brake will be released and the vehicle
will start to move.
Emergency braking
The vehicle can also be braked during an emer-
gency by using the electric parking brake.
XWhile driving, push handle :of the electric
parking brake.
The vehicle is braked for as long as the handle
of the electric parking brake is pressed. The
longer the electric parking brake handle is
depressed, the greater the braking force.
During braking:
Ra warning tone sounds
Rthe ReleasePark.Brakemessage appears
Rthe red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging. If you leave the vehicle parked for longer than six
weeks, the vehicle may suffer damage as a
result of lack of use.
XVisit a qualified specialist workshop and seek
advice.
iYou can obtain information about trickle
chargers from a qualified specialist work-
shop.
PLUG-IN HYBRID vehicles: observe the impor-
tant safety notes for the high-voltage battery
(
Ypage 376).
Driving tips
General notes
Important safety notes
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the country
in which you are driving. Some jurisdictions pro-
hibit the driver from using a mobile phone while
driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a
distance of 44 ft (approximately 14 m)per sec-
ond.
Driving tips181
Driving and parking
Z

helps avoid overheating and excessive wear
of the brakes.
When you take advantage of the engine brak-
ing effect, a drive wheel may not turn for some
time, e.g. on a slippery road surface. This
could cause damage to the drive train. This
type of damage is not covered by the
Mercedes-Benz warranty.
Do not depress the brake pedal continuously
while the vehicle is in motion, e.g. causing the
brakes to rub by constantly applying light pres-
sure to the pedal. This results in excessive and
premature wear to the brake pads.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately. Drive
on for a short while. This allows the airflow to
cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You then have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehicle
washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance.
RBrake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately.
Consult a qualified specialist workshop to
arrange this.
!A function or performance test should only
be carried out on a 2-axle dynamometer. If
you wish to operate the vehicle on such a
dynamometer, please consult a qualified spe-
cialist workshop in advance. You could oth-
erwise damage the drive train or the brake
system.
!Because ESP®is an automatic system, the
engine and ignition must be switched off
(SmartKey in position 0or 1or Start/Stop
button in position 0or 1) when the electric
parking brake is being tested on a brake dyna-
mometer (maximum 10 seconds).
Braking triggered automatically by ESP
®may
seriously damage the brake system.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
184Driving tips
Driving and parking