Saturn ASTRA 2008 Owner's Manual download pdf (Page 157)

Driving and operating 155

Trailer towing

Trailer loads

The permissible trailer loads are

vehicle and engine-dependent

maximum values which must not be

exceeded. The actual trailer load is

the difference between the actual

gross weight of the trailer and the

actual coupling socket load with the

trailer coupled.

The permissible trailer loads are

specified in the vehicle documents. In

general, they are valid for gradients

up to max. 12 %.

The permitted trailer load applies up

to the specified incline and up to an

altitude of 1000 metres above sea

level. Since engine power decreases

as altitude increases due to the air

becoming thinner, therefore reducing

climbing ability, the permissible gross

train weight also decreases by 10 %

for every 1000 metres of additional

altitude. The gross train weight does

not have to be reduced when driving

on roads with slight inclines (less than

8 %, e. g. motorways).

The permissible gross train weight

must not be exceeded. This weight is

specified on the identification plate

3 211.

Vertical coupling load

The vertical coupling load is the load

exerted by the trailer on the coupling

ball. It can be varied by changing the

weight distribution when loading the

trailer.

The maximum permissible vertical

coupling load (75 kg) is specified on

the towing equipment identification

plate and in the vehicle documents.

Always aim for the maximum load,

especially in the case of heavy

trailers. The vertical coupling load

should never fall below 25 kg.

Rear axle load

When the trailer is coupled and the

towing vehicle fully loaded, the

permissible rear axle load (see

identification plate or vehicle

documents) may be exceeded by

65 kg and the permissible gross

vehicle weight by 45 kg for the

Saloon. For the Station wagon, the

permissible rear axle load may be

exceeded by 60 kg and the

permissible gross vehicle weight by

30 kg. If the permissible rear axle load

is exceeded, a maximum speed of

100 km/h applies.

Towing equipment

Caution

When operating without a trailer,

remove the coupling ball bar.

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