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196 Driving and parking
Install and secure the ball coupling as
#
described in the ball coupling manufac‐
turer's installation instructions.
When the ball coupling has been instal‐
#
led, ensure that it is correctly secured
before every trip.
Requirements:
The vehicle is secured against rolling away.
R
Attaching the ball neck
Remove cover
1
from the ball neck mount
#
in the direction of the arrow.
Store cover
1
so that it cannot move
#
around.
Observe the manufacturer's installation
#
instructions.
Observe the notes on loading the vehicle.
Coupling/uncoupling a trailer
Requirements:
The vehicle is secured with the electric park‐
R
ing brake.
The transmission is in position j.
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 stabilization
R
Parking Assist PARKTRONIC
R
Active Parking Assist
R
Blind Spot Assist
R
Drive Away Assist
R
Cross Traffic Alert
R
Rear view camera
R
Surround view camera
R
Vehicles without a level control system: the
ball head height will change depending on the
vehicle'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
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