Mercedes-Benz CLE Coupe 2023 Owner's Manual page 707

Display messages
Head-up display currently
unavailable See Owner's
Manual
Possible causes/consequences and
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.
#
* 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.
#
If the ball neck has been folded in: unlock the ball neck (
#
Swivel the ball neck into the end position manually and let it engage.
#
If the ball neck has been folded out: unlock the ball neck (
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Swivel the ball neck beneath the bumper manually and let it engage.
#
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.
#
* The head-up display is temporarily unavailable. Possible causes:
malfunctions in the power supply
R
signal interference
R
Stop in accordance with the traffic conditions and switch the vehicle off and on again.
#
Solutions
M
page 41).
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F236 0017 02
Display messages and warning/indicator lamps 705
page 41).