Mazda 2008 Mazda3 4-Door Owner's Manual page 251

To remove the spare tire
(4 Door)
1. Remove the trunk mat and trunk board.
2. Turn the tire hold-down bolt
counterclockwise with the lug wrench.
(5 Door)
1. Remove the trunk mat, trunk board and
cargo sub-compartment.
(Type A)
2. Turn the tire hold-down bolt
counterclockwise with the lug wrench.
In Case of an Emergency
Flat Tire
(Type B)
7-7