Opel ASTRA Owner's Manual page 228

226 Vehicle care
9 Warning
Do not drive faster than 80 km/h.
Do not use for a lengthy period.
Steering and handling may be
affected.
If you have a flat tyre:
Apply the parking brake and engage
first gear, reverse gear or P.
The tyre repair kit is on the right side
in the load compartment behind a
cover.
1. Remove the sealant bottle.
2. Insert the thumb into the opening
and pull out 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.