Opel Astra 2004 Manuel D'utilisation page 46

Weights and Payload
The payload is the difference between the
permissible gross vehicle weight rating and
the EC kerb weight.
To calculate the EC standard kerb weight,
enter the data for your vehicle below:
z Kerb weight .............. kg
z Weight of heavy
accessories from Table 2,
Owner's Manual + .............. kg
Total = .............. kg
is the EC kerb weight.
Optional equipment and accessories
increase the kerb weight, which means that
the payload will also change slightly.
Further information – see Owner's Manual.
Note the weights given in the vehicle
papers.
Weights ,
(kg)
1)
Kerb weight
Astra
Astra
with air conditioning
Gross vehicle weight rating
Astra
Astra
with air conditioning
1)
In accordance with EU directive including assumed weights
for driver (68 kg), luggage (7 kg) and all fluids (tank 90 % full).
44
1380
1400
1855
1875