Mercedes-Benz S-Class Saloon 2021 Owner's Manual page 331

328 Driving and parking
328
Extending t Ext ending the ball nec he ball neck full k fully electr y electrically
Pull button 2.
#
Indicator lamp 1 will ash and the message
Trailer coupling in motion will appear on the
driver's display.
The ball neck will extend fully electrically.
ically Wait until the ball neck has locked in place.
#
When indicator lamp
ball neck is securely locked in place.
If the ball neck is not securely locked in place,
indicator lamp
Check trailer hitch lock
driver's display.
1 is continuously lit, the
1 will ash and the message
will appear on the
R R e e tr tracting t acting the ball nec he ball neck full k fully electr y electrically
Pull button 2.
#
Indicator lamp 1 will ash and the message
Trailer coupling in motion will appear on the
driver's display.
The ball neck will retract fully electrically.
Wait until the ball neck has locked in place.
#
When indicator lamp 1 goes out, the ball
neck is securely locked in place.
If the ball neck is not securely locked in place,
indicator lamp 1 will ash and the message
Trailer coupling Check lock
driver's display.
Observe the information about the displays on the
driver's display:
Indicator and warning lamps (
R
Display messages ( page 485)
R /
ically
will appear on the
page 561)
/