1. Verify that the joint shaft is not twisted or cracked.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly and freely.

Drive shaft
Joint shaft removal/installationMazda 6 Service Manual: Fuel-Filler Cap
To remove the fuel-filler cap, turn it counterclockwise.
Attach the removed cap to the inner side of the fuel lid.
To close the fuel-filler cap, turn it clockwise until a click is heard.
CAUTION
(U.S.A. and Canada) If the check fuel cap warning light illuminates,
the fuel-filler cap may not ...
Mazda 6 Service Manual: Power steering fluid inspection
Fluid Level Inspection
1. Inspect the power steering fluid level.
Add fluid to the specified level as necessary.
Fluid specification
ATF M-III or equivalent (e.g. Dexron®II)
Fluid Leakage Inspection
1. Start the engine and let it idle.
2. Turn the steering wheel fully to the left and ...