Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual page 293

The doors or tailgate are not opened or
#
closed.
You do not initiate the level control sys-
#
tem and do not operate the DYNAMIC
SELECT switch.
Do not lock or unlock the vehicle.
#
Requirements:
The ball neck is extended and engaged in a
R
securely locked position.
Trailers with a 7-pin plug can be connected to the
vehicle with the following adapters:
Adapter plug
R
Adapter cable
R
The trailer will be correctly detected by the vehi-
cle only if the following conditions are met:
The trailer is connected correctly.
R
The trailer lighting system is in working order.
R
The functions of the following systems will be
affected by a correctly connected trailer:
®
ESP trailer stabilisation
R
Active Lane Keeping Assist
R
Parking Assist PARKTRONIC
R
Active Parking Assist
R
Blind Spot Assist or Active Blind Spot Assist
R
Drive Away Assist
R
Cross traffic warning
R
Manoeuvering brake function
R
Reversing camera
R
360° Camera
R
AIRMATIC
R
E-ACTIVE BODY CONTROL
R
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.
P223 0288 02
Driving and parking 291
Remove the cover cap from the ball head and
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store it in a safe place.
Position the trailer on a level surface behind
#
the vehicle and couple it up to the vehicle.
Open the socket cap.
#
Insert the plug with lug 1 in groove
#
the socket.
Turn bayonet coupling 2 to the right as far as
#
it will go.
Let the cap engage.
#
Secure the cable to the trailer with cable ties
#
(only if you are using an adapter cable).
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