2019-2024 Mercedes G Class SUV Driving and parking -> Trailer hitch User Manual
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Driving and parking -> Trailer hitch for Your Mercedes G Class SUV Fourth Generation (2019-2024)

▌Activating or deactivating maneuvering assis-
tance
Multimedia system:
4
Vehicle
5
k
Assistance
5
Camera & Parking
5
Maneuvering Assist.
#
Activate O or deactivate ª the function.
%
Maneuvering assistance must be active for
the function of Drive Away Assist
(/ page 195) and Cross Trac Alert
(/ page 196).
Trailer hitch
Notes on trailer operation
*
NOTE Mercedes-AMG vehicles
#
Observe the notes in the Supplement.
You could otherwise fail to recognize
dangers.
&
WARNING Risk of accident due to unsuita-
ble ball neck
If you install an unsuitable ball neck, the trailer
hitch and the rear axle may be overloaded.
This can signicantly impair the driving char-
acteristics and the trailer may become loose.
There is a risk of fatal injury.
#
Only install a ball neck that complies
with the permissible dimensions and is
designed for the requirements of trailer
operation.
#
Do not modify the ball neck or the trailer
hitch.
The values approved by the manufacturer can be
found on the identication plates and in the "Tech-
nical data" section under "Trailer hitch" for the
towing vehicle (/ page 389).
&
WARNING Risk of accident due to vehi-
cle/trailer combination swerving
If you drive too fast in trailer operation, the
vehicle/trailer combination may start to
swerve.
This could cause you to lose control of the
vehicle/trailer combination. The vehicle/
trailer combination may even rollover.
#
Under no circumstances should you try
to straighten the vehicle/trailer combi-
nation by increasing your speed.
#
Reduce the speed and do not counter-
steer.
#
Brake if necessary.
*
NOTE Damage to the engine resulting
from overheating
#
If you subsequently have a trailer cou-
pling retrotted, depending on the vehi-
cle type, changes to the engine cooling
system may be required.
Driving and parking
197
In the case of retrotting a trailer coupling,
please observe the attachment points on the
vehicle frame.
Retrotting a trailer hitch is permissible only if a
trailer load is specied in your vehicle documents.
If this is not the case, the vehicle is not approved
for trailer operation.
Further information can be obtained at a qualied
specialist workshop.
For a detachable trailer coupling, it is essential to
comply with the operating instructions of the
trailer coupling manufacturer.
Couple and uncouple the trailer carefully. If you
do not connect the trailer to the towing vehicle
correctly, the trailer may become detached.
Observe the following notes on the tongue weight:
R
Do not use a tongue weight that exceeds or
falls below the permissible tongue weight
R
Use a tongue weight as close as possible to
the maximum tongue weight
Do not exceed the following values:
R
Permissible towing capacity
R
Permissible rear axle load of the towing vehi-
cle
R
Permissible gross weight of the towing vehicle
R
Permissible gross weight of the trailer
R
Maximum permissible speed of the trailer
Ensure the following before starting a journey:
R
The tire pressure on the rear axle of the tow-
ing vehicle is set for a maximum load
R
The lighting of the connected trailer is opera-
tional
In the event of increased rear axle load, the car/
trailer combination must not exceed a maximum
speed of 62 mph (100 km/h) for reasons con-
cerning the operating permit. This also applies in
countries in which the permissible maximum
speed for car/trailer combinations is above
62 mph (100 km/h).
Attaching the ball neck
&
WARNING Risk of accident and injury due
to incorrectly installed ball neck
If the ball neck is not properly mounted and
secured, it may come loose along with the
trailer while the vehicle is in motion and
endanger other road users. There is a risk of
fatal injuries.
#
Mount and secure the ball neck as
described in the installation instructions
of the ball neck manufacturer.
#
With the ball neck mounted, always
make sure it is properly secured before
commencing a journey.
198
Driving and parking
Attaching the ball neck
#
Secure the vehicle against rolling away.
#
Remove cover cap 1 from the ball neck
mount in the direction of the arrow.
#
Store cover cap 1 such that it cannot move
around.
#
Comply with the installation instructions of the
ball neck manufacturer.
Observe the notes on loading the vehicle.
Coupling up/uncoupling a trailer
The trailer will be correctly detected by the vehi-
cle only if the following conditions are met:
R
The trailer is connected correctly.
R
The trailer lighting system is in working order.
A correctly connected trailer inuences, among
other things, the functions of the following sys-
tems:
R
ESP
®
trailer stabilization
R
Parking Assist PARKTRONIC
R
Active Parking Assist
R
Blind Spot Assist
R
Drive Away Assist
R
Cross Trac Alert
R
Reversing camera
R
Surround view camera
Vehicles without level control system: the ball
head height will change depending on the vehi-
cle's load. In this case, use a trailer with a height-
adjustable drawbar.
Coupling up a trailer
*
NOTE Damage to the starter battery due
to full discharge
Charging the trailer battery using the power
supply of the trailer can damage the starter
battery.
#
Do not use the vehicle's power supply to
charge the trailer battery.
Information about a suitable ball neck for
Mercedes-Benz vehicles can be obtained from a
qualied specialist workshop, e.g. an authorized
Mercedes-Benz Center.
#
Secure the vehicle against rolling away.
#
Remove the cover cap from the ball neck
mount and store it in a safe place
(/ page 198).
#
Position the trailer on a level surface behind
the vehicle and couple it up to the vehicle.
#
Establish the electrical connection between
the vehicle and the trailer.
Driving and parking
199

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