Mercedes-Benz Sprinter 2018 Operating Instructions Manual page 181

Open the cover of the socket.
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Insert the plug with the tab
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et's groove 3.
Turn the bayonet coupling
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far as it will go.
Let the cover engage.
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Attach the cable to the trailer with cable ties
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(only in the case of adapter cable).
Ensure that the cable has unobstructed move‐
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ment for driving around bends.
Push the combination switch upwards/down‐
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wards and check whether the correct turn
signal light is flashing on the trailer.
Even if the trailer is connected correctly, a display
message will nevertheless appear on the multi‐
function display in the following cases:
LEDs have been installed on the trailer's light‐
R
ing system.
The minimum power (50 mA) of the trailer
R
lighting is not reached.
%
You can connect accessories up to a maxi‐
mum of 240 W to the permanent power sup‐
ply.
Uncoupling a trailer
& WARNING Risk of being crushed and
becoming trapped when uncoupling a
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.
Do not uncouple a trailer with an overrun brake in
a state of overrun. Otherwise, the rebound of the
overrun brake can damage your vehicle.
Vehicles with automatic transmission:
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shift the selector lever to position j.
Apply the vehicle's parking brake.
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Close all the doors.
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Apply the trailer's parking brake.
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Secure the trailer against rolling away with a
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wheel chock or similar object.
Disconnect the electrical connection between
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the vehicle and trailer.
Uncouple the trailer
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1 into the sock‐
2 to the right as
Driving and parking 179
Place the cover on the ball head.
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%
On vehicles with detachable trailer tow
hitches: once the trailer has been uncoupled,
remove the ball neck and place the plastic
covering on the ball neck mount on the vehi‐
cle.