Opel 2015 Astra Owner's Manual page 270

268 Vehicle care
Apply the parking brake and engage
first gear, reverse gear or P.
The tyre repair kit is in a compartment
under the floor cover in the load
compartment or, on version with rear
carrier system, in the drawer under
the passenger seat 3 63.
The illustrations show different
versions.
1. Take the tyre repair kit from the
compartment.
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.