1. Remove the upper anchor of the front seat belt.
2. Remove the B-pillar lower trim.
3. Turn the seaming welt over.

4. Pull the B-pillar upper trim toward you, then disengage, clip B, and pin C from the body.
5. Disengage hook A from the body, then remove B-pillar upper trim.
6. Install in the reverse order of removal.
B-pillar lower trim removal/installation
Front side trim removal/installationMazda 6 Service Manual: Engine disassembly/assembly
1. Disconnect the engine and automatic transaxle. (ATX) (See AUTOMATIC
TRANSAXLE REMOVAL/INSTALLATION.)
2. Disconnect the engine and manual transaxle. (MTX) (See MANUAL TRANSAXLE
REMOVAL/INSTALLATION.)
3. Remove the intake-air system. (See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION.)
4. Remove ...
Mazda 6 Service Manual: Dual proportioning valve replacement (without abs)
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
Dual Proportioning Valve Installation Note
Install the dual proportioning valve so that the R mark faces the left side
of the vehicle.
...