1. Disconnect the negative battery cable.
2. Jack up the vehicle.
3. Remove in the order indicated in the table.


4. Install in the reverse order of removal.
5. Adjust the headlight zeroset. (See HEADLIGHT ZEROSET)
Front auto leveling sensor removal/installation
Parking light bulb removal/installationMazda 6 Service Manual: Contact Authorized Mazda Dealer and Have Vehicle Inspected
If any of the following warning lights or the indicator light turns on/flashes,
the system may have a malfunction. Contact an Authorized Mazda Dealer to have your
vehicle inspected.
...
Mazda 6 Service Manual: Nonreturn valve inspection
1. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION.)
2. Siphon the fuel from the fuel tank.
Note
Nonreturn valve is integrated in the fuel tank.
The nonreturn valve is normally closed by the spring force.
3. Verify that the nonreturn valve is closed.
If the nonretu ...