MERCEDES-BENZ GLE COUPE 2023 Owners Manual

Wear safety glasses.Keep children away.Observe this Operator\bs Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
= Non-plug-in hybrid: switch to standby mode
(  page 186).
= Alternatively: connect the battery to a battery
charger approved by Mercedes-Benz or con-
sult a quali"Ned specialist workshop to discon-
nect the battery.
Notes on the 48 V battery
&WARNING Risk of an accident due to work
carried out incorrectly on the battery
Work carried out incorrectly on the battery
can, for example, lead to a short circuit. This
can restrict functions relevant for safety sys-
tems and impair the operating safety of your vehicle.
You could lose control of the vehicle in the fol-
lowing situations in particular:
= When braking
= In the event of abrupt steering maneuvers
and/or when the vehicle\bs speed is not
adapted to the road conditionsIn the event of a short circuit or a similar incident, contact a quali"Ned specialist
workshop immediately.Do not drive on.Always have work on the battery carried
out at a quali"Ned specialist workshop.
=
Further information on ABS (  page 189)
= Further information on ESP n
( page 189)
For safety reasons, Mercedes-Benz recommends that you use only batteries that have been
approved for your vehicle by Mercedes-Benz.
+ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of bat-
teries
Batteries contain pollutants. It is illegal
to dispose of them with the household trash.

Dispose of batteries in an environ-
mentally responsible manner. Take dis-
charged batteries to a quali"Ned specialist
workshop or to a collection point for
used batteries.
If you have to disconnect the 48 V battery, con- tact a quali"Ned specialist workshop.
Comply with safety notes and take protective
measures when handling batteries.
Risk of explosion if the 48 V battery is
used improperly.The surface of the 48 V battery may be hot.Breakdown assistance339

Fire, naked "Oames and smoking are pro-
hibited when you are handling the battery. Avoid creating sparks.Electrolyte or battery acid is corrosive.
Avoid contact with the skin, eyes or cloth-
ing. Wear suitable protective clothing, in
particular gloves, an apron and a face
mask. Immediately rinse o"M splashes of
electrolyte or acid with plenty of clean water. Consult a doctor immediately.Do not place heavy objects on the surface of the battery or use the battery to sup-port a person in any way.Do not perform any work on the battery.
Always have any work on the battery car-
ried out at a quali"Ned specialist workshop.
Do not disconnect the battery yourself. Do not remove the battery yourself. Do
not attempt to open the battery.Keep children away.Wear safety glasses.Observe this Operator\bs Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
= Non-plug-in hybrid: switch to standby mode
(  page 186).
Notes on starting assistance and charging the 12
V battery
All vehicles
When charging the battery and during starting
assistance, always use the jump-start connection
point in the engine compartment.
*NOTE Damage to the battery due to over-
voltage
When charging using a battery charger without
a maximum charging voltage, the battery or the on-board electronics may be damaged.
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.&WARNING Risk of explosion due to the
ignition of hydrogen gas
If there is a short circuit or sparks are created,
there is a danger of hydrogen gas igniting
when you charge the battery.
Make sure that the POSITIVE terminal of
a connected battery does not come into
contact with vehicle parts.Never place metal objects or tools on a
battery.When connecting and disconnecting the battery, always observe the sequence of
battery terminals described.During starting assistance, always take
care to connect only battery terminals of
identical polarity.During starting assistance, observe the sequence described for connecting and
disconnecting the jumper cables.Do not connect or disconnect the bat-
tery terminals with the engine running.340Breakdown assistance

&WARNING Risk of explosion due to a mix-
ture of explosive gases
A mixture of explosive gases can escape from
the battery during charging and jump starting.
Fire, open "Oames, smoking and creating
sparks must be avoided.Make sure that there is su"Pcient ventila-
tion.Do not stand over the battery.&WARNING Risk of explosion from a frozen
battery
A discharged battery may freeze at tempera-
tures slightly above or below freezing point.
During starting assistance or battery charging,
battery gas can be released.
Always allow a battery to thaw before
charging it or performing starting assis-
tance.
If the indicator/warning lamps on the instrument cluster do not light up at low temperatures, it is
very likely that the discharged battery has frozen.
In this case, you may neither jump-start the vehi-
cle nor charge the battery.
The service life of a battery that has been thawedmay be dramatically shortened. The starting char-
acteristics may be impaired, especially at low
temperatures.
It is recommended that you have a thawed battery checked at a quali"Ned specialist workshop.
All vehicles*NOTE Damage caused by numerous or
extended attempts to start the engine
Numerous or extended attempts to start the
engine may damage the catalytic converter
due to non-combusted fuel.
Avoid numerous and extended attempts
to start the engine.
Observe the following points during starting assis-
tance and when charging the battery:
= Use only undamaged jumper cables/charging
cables with a su"Pcient cross-section and
insulated terminal clamps.
= Non-insulated parts of the terminal clamps
must not come into contact with other metal
parts while the jumper cable/charging cable is connected to the battery/jump-start con-
nection point.
= The jumper cable/charging cable must not
come into contact with any parts that may move when the engine is running.
= Always make sure that neither you nor the bat-
tery is electrostatically charged.
= Keep away from "Nre and naked "Oames.
= Do not lean over the battery.
Observe the additional following points when
charging the battery:
= Use only battery chargers tested and
approved for Mercedes-Benz.
= Read the battery charger\bs operating instruc-
tions before charging the battery.Breakdown assistance341

Observe the additional following points duringstarting assistance:
= Starting assistance may be provided only
using vehicles, batteries or other jump start
devices with a nominal voltage of 12 V.
= The vehicles must not touch.
= Vehicles with gasoline engines: jump-start the
vehicle only when the engine and exhaust sys- tem are cold.
Starting assistance and charging the 12 V battery
Requirements
= The vehicle is secured with the electric park-
ing brake.
= Vehicles with automatic transmission: the
transmission is in position ].
= The vehicle and all electrical consumers are
switched o"M.
= The hood is open.
Example: engine compartment
Slide cover 1 of POSITIVE contact 2 on the
jump-starting connection point in the direction
of the arrow.Connect POSITIVE contact 2 on your vehicle
to the positive terminal of the donor battery using the jumper cable/charging cable.Always begin with POSITIVE contact 2 on
your own vehicle "Nrst.During starting assistance: start the engine of
the donor vehicle and run it at idle speed.Connect the negative terminal of the donor
battery and ground point 3 of your own vehi-
cle using the jumper cable/charging cable.
Begin with the donor battery "Nrst.During starting assistance: start the engine of
your own vehicle.During the charging process: start the charg-
ing process.During starting assistance: let the engines run
for several minutes.During starting assistance: before disconnect-
ing the jumper cable, switch on an electrical consumer in your own vehicle, e.g. the rearwindow defroster or lighting.
When the starting assistance/charging process is complete, perform the following steps:
First, remove the jumper cables/charging
cables from ground point 3 and the negative342Breakdown assistance

terminal of the donor battery, then POSITIVEcontact 2 and the positive terminal of the
donor battery. Begin each time with the con- tacts on your own vehicle "Nrst.A"ser removing the jumper cables/charging
cables, close cover 1 of POSITIVE contact
2 .
Further information can be obtained at a quali"Ned
specialist workshop.
Replacing the 12 V battery
Observe the notes on the 12 V battery (  page 337).
Mercedes-Benz recommends that you have the
12 V battery replaced at a quali"Ned specialist
workshop, e.g. at an authorized Mercedes-Benz Center.
Observe the following notes if you want to replace
the battery yourself:
= Always replace a faulty battery with a battery
that meets the speci"Nc vehicle requirements.
The vehicle is equipped with a battery using
AGM (Absorbent Glass Mat) technology or a
lithium-ion battery. Full vehicle functionality is
guaranteed only with an AGM battery or lith- ium-ion battery. For safety reasons, Mercedes-Benz recommends that you use only batteries
that have been tested and approved for your vehicle by Mercedes-Benz.
= Carry over detachable parts, such as vent
hoses, elbow "Ntting or terminal covers from
the battery being replaced.
= Make sure that the vent hose is always con-
nected to the original opening on the side of
the battery.
Install any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
= Make sure that detachable parts are recon-
nected in the same way.Tow starting or towing away
Overview of the permitted towing methods (not
plug-in hybrid)
*NOTE Damage from automatic braking
If one of the following functions is activated,
the vehicle will brake automatically in certain
situations:
= Active Brake Assist
= Active Distance Assist DISTRONIC
= HOLD function
= Active Parking Assist
To avoid damage to the vehicle, deactivate
these systems in the following or similar situa-
tions:
During towing.In a car wash.
Mercedes-Benz recommends transporting your vehicle in the case of a breakdown, rather than towing it away.
Breakdown assistance343

For towing with both axles on the ground, use atow rope or tow rod. Do not use tow bar systems.*NOTE Damage to the vehicle due to tow-
ing away incorrectlyObserve the instructions and notes on
towing away.
Permitted towing methods
Vehicle equipment/towing method
Both axles on the groundFront axle raisedRear axle raised
4MATIC vehiclesYes, for a maximum of 31 miles
(50 km) at 31 mph (50 km/h)NoNoVehicles with rear wheel driveYes, for a maximum of 31 miles
(50 km) at 31 mph (50 km/h)NoYes, if the steering wheel is "Nxed in
the center position with a steering
wheel lock344Breakdown assistance

Towing away the vehicle with both axles on thegroundObserve the notes on the permitted towingmethods (  page 343).Make sure that the battery is connected and
charged.
A discharged battery has the following e"Mects:
= the vehicle cannot be switched on
= the electric parking brake cannot be released
or applied
= the transmission cannot be shi"sed to position
\\ or ]
\bIf the transmission cannot be shi"sed to posi-
tion \\, or the multifunction display in the
instrument cluster does not show anything, the vehicle must be transported away
(  page 346). A towing vehicle with li"sing
equipment is required for vehicle transporta-
tion.*NOTE Damage due to towing away at
excessively high speeds or over long dis-
tances
The drivetrain could be damaged when towing
at excessively high speeds or over long distan-
ces.
A towing speed of 30 mph (50 km/h)
must not be exceeded.A towing distance of 30 miles (50 km)
must not be exceeded.&WARNING Risk of accident when towing a
vehicle which is too heavy
If the vehicle to be tow-started or towed away
is heavier than the permissible gross mass of
your vehicle, the following situations can
occur:
= The towing eye may become detached.
= The vehicle/trailer combination may
swerve or rollover.
Before tow-starting or towing away,
check if the vehicle to be tow-started ortowed away exceeds the permissible
gross mass.Information on the gross vehicle weight rating
of the vehicle can be found on the vehicle
identi"Ncation plate ( page 388).Do not open the driver\bs door or front
passenger door as the transmission may oth-
erwise shi"s to position ] automatically.Install the towing eye (  page 347).Fasten the towing device.*NOTE Damage due to incorrect connec-
tion of the tow barOnly connect the tow rope or tow bar to
the towing eyes.\bYou can also attach the tow bar to the trailer
hitch.Deactivate the automatic locking mechanism
(  page 78).Do not activate the HOLD function.Deactivate the tow-away alarm (  page 94).Breakdown assistance345

Deactivate Active Brake Assist ( page 216).Shi"s the transmission to position
\\ ( page 171).Release the electric parking brake.&WARNING Risk of accident due to limited
safety-related functions during the towing
process
Safety-related functions are limited or no lon-
ger available in the following situations:
= The vehicle is switched o"M.
= The brake system or power steering sys-
tem is malfunctioning.
= The energy supply or the on-board electri-
cal system is malfunctioning.
When your vehicle is towed away, signi"Ncantly
more e"Mort may be required to steer and
brake than is normally required.
Use a tow bar.Make sure that the steering wheel can
move freely before towing the vehicle
away.*NOTE Damage due to excessive tractive
power
If you pull away sharply, the tractive power
may be too high and the vehicles could be
damaged.
Pull away slowly and smoothly.
Loading the vehicle for transport
Observe the notes on towing away (  page 345).Connect the towing device to the towing eye
in order to load the vehicle.\bYou can also attach the tow bar to the trailer
hitch.Shi"s the automatic transmission to position
\\ .\bThe automatic transmission may be locked in
position ] in the event of damage to the
electrics. To shi"s to \\, supply the on-board
electrical system with power (  page 342).Load the vehicle onto the transporter.Shi"s the automatic transmission to position
] .Use the electric parking brake to secure the
vehicle against rolling away.Secure the vehicle only by the wheels.
Vehicles with ADS PLUS (Adaptive Damping Sys- tem PLUS)
&WARNING Risk of an accident when trans-
porting vehicles with Adaptive Damping
System PLUS
When transporting vehicles with Adaptive Damping System PLUS, the vehicle/trailer
combination may begin to rock and start to
skid.
Load the vehicle correctly onto the transporter.Secure the vehicle on all four wheels
with suitable tensioning straps.346Breakdown assistance

Do not exceed the maximum permissible
speed of 35 mph (60 km/h) when trans-
porting.*NOTE Damage to the vehicle from secur-
ing it incorrectlyA"ser loading, the vehicle must be
secured on all four wheels. Otherwise,
the vehicle could be damaged.A minimum distance of 8 in (20 cm)
upwards and 4 in (10 cm) downwards
must be kept to the transport platform.Secure the vehicle on all four wheels a"ser
loading.4MATIC vehicles/vehicles with automatic trans-
missionMake sure that the front and rear axles come
to rest on the same transportation vehicle.*NOTE Damage to the drive train due to
incorrect positioning of the vehicleDo not position the vehicle above the
connection point of the transport vehi- cle.Towing eye storage location
Towing eye 1 is located under the cargo "Ooor by
the tire-change tool kit.
Installing and removing the towing eye
Breakdown assistance347

To install the front towing eye: For cover 1,
use a tool (e.g. a screwdriver) to pry o"M the
cover on recess 2 by moving it upward.To install the rear towing eye: press the mark
on cover 1 inward and remove.Screw in the towing eye clockwise at least
seven revolutions as far as it will go and
tighten it. If the towing eye cannot be screwed
in as described above, this may be because
the thread is dirty. The towing operation can-
not be performed.
Vehicles with a trailer hitch: vehicles with a trailer
hitch do not have a rear bracket for the towing
eye. Fasten the tow bar to the trailer hitch.
A"ser removing the towing eye, snap cover 1
at the front or rear into the bumper.*NOTE Damage to the vehicle due to incor-
rect use of the towing eye or trailer hitch
When a towing eye or trailer hitch is used to
recover a vehicle, the vehicle may be damaged
in the process.
Only use the towing eye or trailer hitch to
tow away or tow start the vehicle.Do not use the towing eye or trailer hitch
to tow the vehicle during recovery.
Tow-starting the vehicle
Vehicles with automatic transmission
*NOTE Damage to the automatic transmis-
sion due to tow starting
The automatic transmission may be damaged
in the process of tow starting vehicles with
automatic transmission.
348Breakdown assistance