Mercedes-Benz S-Class 2020 Owner's Manual page 519

516 Display messages and warning/indicator lamps
Display messages
Please teach in trailer cou-
pling again using the but-
ton in load compartment
Wait for it to extend/
retract
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Steering malfunction Drive
carefully Visit workshop
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Steering malfunction
Increased physical effort
See Owner's Manual
Possible causes/consequences and
Do not couple up the trailer. Drive on without the trailer. Note the reduced ground clearance due to the
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unlocked ball neck.
Consult a qualified specialist workshop.
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* The swivel movement of the trailer hitch is impaired.
Use the button on the boot lid to trigger a new, complete swivel movement until the ball neck engages beneath
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the bumper.
* A power steering malfunction has occurred. Steering characteristics may be impaired as a result.
Drive on carefully.
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Consult a qualified specialist workshop.
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* The power steering assistance is malfunctioning.
& WARNING Risk of an accident due to altered steering characteristics
If the power assistance of the steering fails partially or completely, you will need to use more force to steer.
If safe steering is possible, drive on carefully.
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Visit or consult a qualified specialist workshop immediately.
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M M Solutions