Opel ASTRA 2014 Owner's Manual page 276

274 Vehicle care
Vehicles equipped with a temporary
spare wheel:
Secure a damaged full size wheel
outside up with the wing nut in the
spare wheel well after exchanging the
thread bolt by an extension bolt,
placed in the tool bag 3 257. To
replace the bolt:
1. Install the hexagon key of the
wheel wrench ensuring that it
locates securely on the bolt.
2. Turn the wheel wrench
anticlockwise to loosen the bolt.
Remove the bolt.
3. Take the extension bolt from the
tool bag 3 257 and screw it in
hand-tight using the hexagon key
of the wheel wrench.
4. Store the tool box and the
damaged wheel outside up in the
spare wheel well and secure it by
turning the wing nut clockwise on
the bolt.
The floor cover can be placed on the
projecting wheel.
Replace the extension bolt with the
short bolt before placing the
temporary spare wheel in the well
after renewing or repairing the
defective wheel.
Stowing the spare wheel back in
the well after replacing the
damaged wheel
1. Open the floor cover, untwist and
remove wing nut.
Only 3-door hatchback: open floor
cover, remove rear storage,
untwist and remove wing nut and
conus.
2. Only Sports tourer and 4-door
notchback with temporary spare
wheel: replace the extension bolt
with the short bolt by using the
hexagon key of the wheel wrench.
3. Place the tools in the tool box or
the tool bag 3 257.
4. Place spare wheel outside up in
the wheel well and secure by
turning the wing nut right back.