CAUTION:
Do not allow clutch fluid get on a painted surface. Clutch fluid contains properties which can dissolve the paint. If clutch fluid gets on a painted surface, wash it off with water immediately and wipe the area off completely.
1. Remove the aerodynamic under cover No.2..
2. Disconnect the clutch pipe and hose No.2 from clutch release cylinder, and plug it to avoid clutch fluid leakage..
3. Remove the clutch release cylinder.

4. Install in the reverse order of removal.
5. Bleed the air from the clutch system..
Clutch Release Collar Inspection [C66 M R]
Clutch Unit Removal/Installation [C66 M R]Engine SST [Mzr 2.3 Disi Turbo]
1: Mazda SST number
2: Global SST number
Example
1:49 UN30 3328
2:303–328
Rear oil seal replacer
1:–
2:303–507
Crankshaft TDC timing pin
1:49 UN30 310610
2:303–1061
Camshaft
alignment timing tool
...
Blind Spot Monitoring (Bsm) Off Switch Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the switch panel in the direction of the arrow shown in the figure.
3. Disconnect the connector.
4. Remove the BSM OFF switch in the direction of the arrow (2) shown in the figure
while pressing the tabs in the direction of the arrow ...
Oil Control Valve (OCV) Removal/Installation [Mzr 2.3 Disi Turbo]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the charge air cooler..
4. Remove the ignition coils..
5. Disconnect the ventilation hose from the cylinder head cover..
6. Remove the cylinder head cover..
7. Remove in the order indicated in the table.
...