laden, the permitted gross vehicle weight or the
permitted trailer load values will be reduced
accordingly. In this case, you may only partially
load the trailer or the vehicle.
The gross trailer weight (GTW) is calculated on the
basis of the weight of the trailer plus the weight of
its load and equipment. If the trailer is equipped
with a separate braking system, then the maximum
gross trailer weight is 5000 lbs (2268 kg) or
7500 lbs (3402 kg).
The maximum permissible drawbar tongue weight
on the ball head is 500 lbs (227 kg) or 750 lbs
(340 kg). However, the actual tongue weight must
not exceed the value given on the trailer hitch or
trailer identification plates. Where the values differ,
the lowest shall always apply.
The gross combined weight rating (GCWR) is calcu-
lated on the basis of the gross trailer weight plus
the gross vehicle weight, including a driver's
weight of approximately 150 lbs (68 kg). The maxi-
mum permissible gross combination weight is vehi-
cle-specific and equipment-dependent. When driv-
ing with a trailer, you should not exceed the maxi-
mum permissible gross combination weight rating
(GCWR).
The permissible values, which must not be excee-
ded, can be found in your vehicle documents and
on the identification plates of the trailer hitch, the
trailer and the vehicle. The values approved by the
manufacturer can also be found in the "Technical
data" section. Where the values differ, the lowest
shall always apply.
Loading the trailer
Use a tongue weight that is as close as possible to
the maximum permissible tongue weight. Do not
allow the weight to fall below the minimum permis-
sible tongue weight. Otherwise, the trailer may
become detached.
R
Distribute the load over the vehicle and the
trailer so as not to exceed either the maximum
permissible values for the gross vehicle weight
rating (GVWR) and gross trailer weight (GTW),
the gross combination weight rating (GCWR),
or the maximum permissible gross axle weight
rating (GAWR) and tongue weight (TWR) of your
vehicle.
R
Add the drawbar tongue weight (TWR) on the
ball head to the rear axle load. This will ensure
that you do not exceed the permissible gross
axle weight rating (GAWR).
R
Add the vehicle load to the drawbar tongue
weight (TWR) on the ball head. This will ensure
that you do not exceed the permissible gross
vehicle weight rating (GVWR).
Checking vehicle and trailer weight
R
Make sure that the weights of the towing vehi-
cle and the trailer comply with the maximum
permissible values. Have the vehicle/trailer
combination weighed on a calibrated weighing
machine. The vehicle/trailer combination com-
prises the towing vehicle including driver, pas-
sengers and load as well as the laden trailer.
R
Check the maximum permissible gross axle
weight rating of the front and rear axles
(GAWR), the gross trailer weight (GTW), the
gross combination weight rating (GCWR) and
the drawbar tongue weight (TWR).
Incorrect cabling of the connector plug may inter-
fere with other electronic systems in the vehicle.
Mercedes-Benz therefore recommends that you
have the cabling of the connector plug carried out
at a qualified specialist workshop.
You can connect accessories up to a maximum of
240 W to the permanent power supply. Do not
charge a trailer battery using the power supply.
Your vehicle may be equipped with a range of elec-
trical equipment for trailer operation. Depending
on your trailer, you may need an adapter for the
electrical connection between the trailer and your
vehicle.
The trailer socket of your vehicle is equipped with a
permanent power supply at the factory.
The permanent power supply is supplied via trailer
socket pin 4.
Note that the trailer's permanent power supply is
not switched off when the vehicle's on-board elec-
trical system voltage is low. This could completely
discharge your vehicle's starter battery.
Further information on the electrical equipment
currently installed on your vehicle and on installing
the trailer electrics can be obtained at a qualified
specialist workshop.
172 Driving and parking
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Страница 12: ...NJ Brakes yellow 323 O ABS malfunction 323 På ESP deactivated 323 10 At a glance Instrument cluster ...
Страница 21: ...Example spare wheel 265 At a glance Emergencies and breakdowns 19 ...
Страница 213: ... A wheel arch may be subjected to a load of 330 lb 150 kg Transporting 211 ...
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