Mercedes-Benz GLC 2019, Owner'S Manual

Page: 257 / 645

Coupling up / uncoupling a trailer
Requirements:
R
the ball neck must be extended and engaged
in a securely locked position
Trailers with a 7-pin plug can be connected to
the vehicle with the following adapters:
R
adapter plug
R
adapter cable
The trailer will be correctly detected by the vehi‐
cle only if the following conditions are met:
R
the trailer is connected correctly
R
the trailer lighting system is in working order
The functions of the following systems are affec‐
ted by a correctly connected trailer:
R
Active Lane Keeping Assist
R
ESP
®
trailer stabilisation
R
Parking Assist PARKTRONIC
R
Active Parking Assist
R
Blind Spot Assist or Active Blind Spot Assist
R
Drive Away Assist
R
Cross Traffic Alert
R
Reversing camera
R
360° Camera
Coupling up a trailer
* NOTE Damage to the vehicle battery due
to full discharge
Charging the trailer battery using the power
supply of the trailer can damage the vehicle
battery.
#
Do not use the vehicle's power supply
to charge the trailer battery.
#
Remove the cover from the ball head and
store it in a safe place (
/
page 110).
#
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 3 on
the socket.
#
Turn the 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).
#
Make sure that the cable is always slack for
ease of movement during cornering.
254 Driving and parking