1. Disconnect the negative battery cable.
2. Disconnect the EGR valve connector.
3. Remove in the order indicated in the table.


4. Install in the reverse order of removal.
Water Hose Removal Note
EGR Valve Removal Note
1. Remove the air hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION)
2. Remove the upper radiator hose. (See RADIATOR REMOVAL/INSTALLATION.)
Purge solenoid valve inspection
Egr valve inspectionMazda 6 Service Manual: Maintenance Monitor
The following maintenance period notifications can be displayed by turning the
Maintenance Monitor on.
Scheduled Maintenance
Tire Rotation
Oil Change
For the setting method and indications for the maintenance monitor, refer to
the Maintenance Monitor.
The maintenance monitor displays ...
Mazda 6 Service Manual: On-board diagnostic test
DTCs Reading Procedure
1. Perform the necessary vehicle preparation and visual inspection.
2. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector located as
shown in the figure.
3. Retrieve DTCs by WDS or equivalent.
Pending Trouble Code Access Procedure
1. Perform the necessary ...