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  • S-Class
  • Saloon long version
  • 12/2020
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Extending and retracting the ball neck fully electrically
WARNING Risk of accident due to the ball neck not being engaged

If the ball neck is not engaged, the trailer may come loose.

Make sure that the ball neck securely engages and locks into place.
NOTE Damage to the all-electric trailer hitch due to additional pressure

The all-electric trailer hitch could be mechanically damaged by applying additional pressure when the ball neck is being extended or retracted.

Do not make the ball neck extend/retract faster by applying additional pressure.
NOTE Increased risk of damage to property due to folded-out ball neck
When the trailer is not coupled or the bicycle rack is attached, fold in the ball neck or, in the case of a fully electric trailer hitch, retract the ball neck.
Requirements:
  • The vehicle is secured against rolling away.

  • The swivel range is clear.

  • The trailer cables or adapter plugs have been removed.

Extending the ball neck fully electrically
To extend:
pull button .

Indicator lamp will flash and the display message Trailer coupling in motion will appear on the driver's display.

The ball neck will extend fully electrically.

Wait until the ball neck has locked in place.

When indicator lamp is continuously lit, the ball neck is securely locked in place.

If the ball neck is not securely locked in place, indicator lamp will flash and the display message Check trailer hitch lock will appear on the driver's display.

Retracting the ball neck fully electrically
Pull button .

Indicator lamp will flash and the display message Trailer coupling in motion will appear on the driver's display.

The ball neck will retract fully electrically.

Wait until the ball neck has locked in place.

When indicator lamp goes out, the ball neck is securely locked in place.

If the ball neck is not securely locked in place, indicator lamp will flash and the display message Trailer coupling Check lock will appear on the driver's display.

Observe the information about the notifications on the driver's display:
  • Warning and indicator lamps More

  • Display messages More