Mercedes-Benz CLS Operator's Manual page 243

240 Driving and parking
Further information can be obtained at a qualified
specialist workshop.
Observe the following notes on the tongue weight:
Do not use a tongue weight that exceeds or
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falls below the permissible tongue weight
Use a tongue weight as close as possible to
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the maximum tongue weight
Do not exceed the following values:
Permissible towing capacity
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Permissible rear axle load of the towing vehi-
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cle
Permissible gross weight of the towing vehicle
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Permissible gross weight of the trailer
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Maximum permissible speed of the trailer
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Ensure the following before starting a journey:
The tyre pressure on the rear axle of the tow-
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ing vehicle is set for a maximum load
The lighting of the connected trailer is opera-
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tional
Vehicles without LED headlamps or MULTI-
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BEAM LED headlamps: the headlamps have
been set correctly
In the event of increased rear axle load, the car/
trailer combination must not exceed a maximum
speed of 100 km/h for reasons concerning the
operating permit. This also applies in countries in
which the permissible maximum speed for car/
trailer combinations is above 100 km/h.
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When you are reversing with a trailer, remem-
ber to use the Trailer Manoeuvring Assist
function ( page 237).
/
Extending and retracting the ball neck fully electri-
cally
& 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
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engages and locks into place.
* NOTE Damage to the all-electric trailer
hitch due to additional pressure
The all-electric trailer hitch could be mechani-
cally damaged by applying additional pressure
when the ball neck is being extended or
retracted.
Do not make the ball neck extend/
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retract faster by applying additional pres-
sure.
* NOTE Increased risk of damage to prop-
erty due to folded-out ball neck
When the trailer is not coupled or the
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bicycle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball neck.
* NOTE Damage to the vehicle due to incor-
rect use of the trailer hitch
If a trailer hitch is used to recover the vehicle,
the vehicle or the trailer hitch itself may be
damaged in the process.