1. Remove the screws.

2. Pull the meter hood toward you, then detach the column cover.
3. Install in the reverse order of removal.
Column cover removal/installation
Lower panel removal/installationMazda 6 Service Manual: Foreword
Outline
The OBD (on-board diagnostic) test inspects the integrity and function
of the headlight auto leveling system and output the results when reqested
by the specitic tests.
OBD test also:
- Provides a quick inspection of the headlight auto leveling system.
- Is usually perfor ...
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
...