Mercedes-Benz GLE Coupe 2023 Operator's Manual page 259

Under no circumstances should you try
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to straighten the vehicle/trailer combi-
nation by increasing your speed.
Reduce the speed and do not counter-
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steer.
Brake if necessary.
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* NOTE Damage to the engine resulting
from overheating
If you subsequently have a trailer cou-
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pling retrofitted, depending on the vehi-
cle type, changes to the engine cooling
system may be required.
In the case of retrofitting a trailer coupling,
please observe the attachment points on the
vehicle frame.
Retrofitting a trailer hitch is permissible only if a
trailer load is specified 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 qualified
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:
Do not use a tongue weight that exceeds or
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falls below the permissible tongue weight
Use a tongue weight as close as possible to
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the maximum tongue weight
Do not exceed the following values:
Permissible towing capacity
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Permissible rear axle load of the towing vehi-
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cle
Permissible gross weight of the towing vehicle
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Permissible gross weight of the trailer
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Maximum permissible speed of the trailer
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Ensure the following before starting a journey:
The tire pressure on the rear axle of the tow-
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ing vehicle is set for a maximum load
Driving and parking 257
The lighting of the connected trailer is opera-
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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).
Vehicles with AIRMATIC or E-ACTIVE BODY CON-
TROL: if the socket of the trailer hitch is occupied,
e.g. by a trailer or rear bicycle rack, the vehicle is
set to the normal level at speeds greater than
19 mph (30 km/h). This is done regardless of
which drive program has been selected.
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