Opel ASTRA Owner's Manual page 196

194 Vehicle care
The tyre repair kit is in the stowage
compartment under the floor cover in
the load compartment.
1. Take the pouch with the tyre
repair kit from the compartment.
Carefully remove the components
from the pouch.
2. Remove the compressor.
3. Remove the electrical connection
cable and air hose from the
stowage compartments on the
underside of the compressor.
4. Screw the compressor air hose to
the connection on the sealant
bottle.
5. Fit the sealant bottle into the
retainer on the compressor.
Set the compressor near the tyre
in such a way that the sealant
bottle is upright.
6. Unscrew valve cap from defective
tyre.
7. Screw tyre inflation hose to valve.
8. The switch on the compressor
must be set to §.