Opel Astra J 1.4 Turbo 2019 Owner's Manual page 170

168 Vehicle care
● Never crawl under a jacked-up
vehicle.
● Do not start the vehicle when it is
raised on the jack.
● Clean wheel nuts and thread with
a clean cloth before mounting the
wheel.
9 Warning
Do not grease wheel bolt, wheel
nut and wheel nut cone.
1. Disengage wheel nut caps with a
screwdriver and remove. Pull off
the wheel cover. Vehicle tools
3 159.
Alloy wheels: Disengage wheel
nut caps with a screwdriver and
remove. To protect the wheel,
place a soft cloth between the
screwdriver and the alloy wheel.
2. Fold out the wheel wrench and
install ensuring that it locates
securely and loosen each wheel
nut by half a turn.
Vehicle tools 3 159
The wheels might be protected by
locking wheel nuts. To loosen
these specific nuts first attach the
adapter onto the head of the nut
before installing the wheel
wrench. The adapter is located in
the glovebox.
3. Ensure the jack is correctly
positioned under the relevant
vehicle jacking point.
4. Set the jack to the necessary
height. Position it directly below