1. Remove the master cylinder. (See MASTER CYLINDER REMOVAL/INSTALLATION.)
2. Remove the wiper arm. (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION.)
3. Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION.)
4. Remove the wiper motor. (See WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION.)
5. Remove the cowl panel. (See COWL PANEL REMOVAL/INSTALLATION.)
6. For L.H.D., remove the A/C bracket.
7. For L.H.D., remove the ABS/TCS HU/CM or DSC HU/CM . (See ABS (ABS/TCS) HU/CM REMOVAL/ INSTALLATION.) (See DSC HU/CM REMOVAL/INSTALLATION.)
8. For R.H.D., remove the alternator cover.
9. For R.H.D., remove the insulator.
10. For R.H.D., remove the vacuum pipe bracket.
11. Remove in the order indicated in the table.
12. Install in the reverse order of removal.
Mazda 6 Service Manual: Thermostat
THERMOSTAT REMOVAL/INSTALLATION
1. Remove the plug hole plate.
2. Disconnect the negative battery cable.
3. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.)
4. Remove the drive belt. (See DRIVE BELT REPLACEMENT.)
5. Remove the washer tank.
6. Remove the P/S oil pump.
Note
...
Mazda 6 Service Manual: Dtc c1148, c1158, c1168, c1178, c1233, c1234, c1235, c1236
Caution
When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness
connector, the SST (49 G066 001) must be used. (See ABS (ABS/TCS) HU/CM
INSPECTION.)
Diagnostic procedure
...