Trailer Operation - Mercedes-Benz Metris 2021 Operating Instructions Manual

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you steer actively, e.g. swerve to avoid an
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obstacle or change lane quickly.
you cut the corner on a sharp curve.
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Trailer operation

Notes on trailer operation
& WARNING Risk of accident and injury if
the tongue weight is exceeded
The carrier system may detach from the vehi‐
cle, thereby endangering other road users.
Always comply with the permissible
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tongue weight when using a carrier.
& WARNING Risk of accident due to
unsuitable ball neck
If you install an unsuitable ball neck, the
trailer hitch and the rear axle may be overloa‐
ded.
This can significantly impair the driving char‐
acteristics and the trailer may become loose.
There is a risk of fatal injury.
Only install a ball neck that complies
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with the permissible dimensions and is
designed for the requirements of trailer
operation.
Do not modify the ball neck or the
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trailer hitch.
You can find specifications regarding the ball
neck on the trailer's identification plate. You can
find specifications regarding the trailer on the
towing vehicle's identification plate and in the
technical data (
page 233).
/
& WARNING Risk of accident and injury
due to an incorrectly installed ball cou‐
pling
If the ball coupling is not installed and
engaged correctly, it may become detached
during travel and endanger other road users.
There is a risk of fatal injury.
Install and secure the ball coupling as
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described in the ball coupling manufac‐
turer's installation instructions.
When the ball coupling has been instal‐
#
led, ensure that it is correctly secured
before every trip.
Driving and parking 131
& WARNING Risk of accident due to an
incorrectly installed and secured ball
coupling
If the ball coupling has not been correctly
installed and secured, the trailer can become
detached.
Install and secure the ball coupling as
#
described in the ball coupling manufac‐
turer's installation instructions.
When the ball coupling has been instal‐
#
led, ensure that it is correctly secured
before every trip.
You can attach carrier systems such as a bicycle
rack or load-bearing implement to the ball neck.
When using carrier systems on the ball neck, the
maximum load capacity is 165 lb (75 kg).
Be sure to comply with the operating instructions
of the manufacturer of the trailer coupling and
the ball neck.
Place your vehicle/trailer combination on surfa‐
ces that are as even as possible and secure it
against rolling away (
page 108). Couple and
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uncouple the trailer carefully.
Note the following regarding the tongue weight:
Make full use of the maximum tongue weight,
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where possible.
Never fall below a legally prescribed minimum
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tongue weight; the tongue weight must
always be positive.
Do not exceed or fall below the permissible
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tongue weights – this must be observed dur‐
ing loading and unloading of the trailer.
Do not exceed the following values:
Permitted braked or unbraked towing capa‐
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city
The maximum permissible towing capacity for
unbraked trailers is 1,653 lbs (750 kg).
Permissible rear axle load of the towing vehi‐
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cle
Permissible gross weight of the towing vehi‐
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cle
Permissible gross weight of the trailer
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Permissible gross combination weight
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Maximum permissible speed of the trailer
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