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388 Display messages and warning/indicator lamps
Display messages
ï
Check trailer hitch
lock
(white display message)
Possible causes/consequences and
* The trailer hitch is not operational during a journey with a trailer.
& WARNING Risk of an accident if the ball neck is not locked
The trailer may become detached.
Stop the vehicle immediately in accordance with the traffic conditions. Do not continue driving.
#
Uncouple the trailer and secure it against rolling away.
#
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears.
#
Initiate a new swivel movement (
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When the display message disappears, couple up the trailer and drive on.
#
If the display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not locked.
Do not couple up the trailer. Drive on without the trailer. Note the reduced ground clearance due to the unlocked
#
ball neck.
Consult a qualified specialist workshop.
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* When the vehicle is stationary with a coupled trailer, the trailer hitch is not operational.
Uncouple the coupled trailer and secure it against rolling away.
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If the ball neck has been folded in: unlock the ball neck (
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Swivel the ball neck into the end position manually and let it engage.
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If the ball neck has been folded out: unlock the ball neck (
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Solutions
M
page 244).
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page 244).
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page 244).
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