Mercedes-Benz S-Class 2022 Owner's Manual page 339

336 Driving and parking
If the ball neck is not securely locked in place, the
message Trailer coupling Check lock
on the driver's display.
Observe the information about the displays on the
instrument cluster:
Indicator and warning lamps (
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Display messages ( page 503)
/
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Coupling up/uncoupling a trailer
& WARNING Risk of injury due to a change
in vehicle level
Vehicles with level control: the vehicle level
may be changed unintentionally, e.g. by other
people. If you couple or uncouple the trailer
during this time, you may become trapped. In
addition, other people could become trapped
if parts of their body are between the vehicle
body and the tyres or underneath the vehicle.
Observe the following when coupling or
uncoupling:
Do not open or close any doors or the
#
will appear
boot lid.
Do not initiate the level control and do
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not operate the DYNAMIC SELECT
switch.
page 581)
/
Do not lock or unlock the vehicle.
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Requirements:
The ball neck is extended and engaged in a
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securely locked position.
Trailers with a 7-pin plug can be connected to the
vehicle with the following adapters:
Adapter plug
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Adapter cable
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The trailer will be correctly detected by the vehi-
cle only if the following conditions are met:
The trailer is connected correctly.
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The trailer lighting system is in working order.
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The functions of the following systems will be
affected by a correctly connected trailer:
®
ESP trailer stabilisation
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Active Lane Keeping Assist
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Parking Assist PARKTRONIC
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Active Parking Assist
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Blind Spot Assist or Active Blind Spot Assist
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Drive Away Assist
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Cross traffic warning
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Manoeuvring brake function
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Reversing camera
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360° camera
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AIRMATIC
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E-ACTIVE BODY CONTROL
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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
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charge the trailer battery.