Mercedes-Benz EQC Owner's Manual page 262

Open the socket cap.
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Insert the plug with lug 1
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the socket.
Turn the bayonet coupling
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far as it will go.
Let the cap engage.
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Secure the cable to the trailer with cable ties
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(only if you are using an adapter cable).
Make sure that the cable is always slack for
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ease of movement during cornering.
Under the following conditions, a message may
appear on the multifunction display even if the
trailer has been connected correctly:
LEDs have been installed in the trailer light‐
R
ing system
The current has fallen below the trailer light‐
R
ing system's minimum current (50 mA)
% Accessories can be connected to the perma‐
nent power supply up to 180 W and to the
power supply that is switched on via the igni‐
tion lock.
Uncoupling a trailer
in groove 3 on
& WARNING Risk of being crushed and
becoming trapped when uncoupling a
2 to the right as
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between the vehicle and the
trailer drawbar.
Do not uncouple trailers with an
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engaged overrun brake.
* NOTE Damage when uncoupling in a
state of overrun
Uncoupling in a state of overrun can damage
the vehicle.
Do not uncouple trailers with an
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engaged overrun brake.
Driving and parking 259
* NOTE Damage to the rear bumper from
installing adapter cables or adapter plugs
The following parts could be damaged when
swiveling the ball neck fully electrically:
Bumper
R
Adapter cable
R
Adapter plug
R
Always remove the adapter cable or
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adapter plug before swiveling the ball
neck fully electrically.
Secure the trailer against rolling away.
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Disconnect the electrical connection
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between the vehicle and the trailer.
Uncouple the trailer.
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Place the cover on the ball head.
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