Charge Air Cooler Installation Note

Remove foreign matter on the O-ring seal surface of charge air cooler and in the pipe furrow O-ring (sand or dust).

Fig 1: O-Ring Seal Surface And O-Ring Forrow
Courtesy of MAZDA
NOTE:
- The color is different between the O-ring on the charge air cooler outlet pipe side and the O-ring on the charge air cooler inlet pipe side. Verify the color before installing the O-ring.
Align the O-ring projection with the pipe furrow and install the O-ring.

Fig 2: Aligning O-Ring Projection With Pipe Furrow
Courtesy of MAZDA

Color of O-ring

Charge air cooler outlet pipe side: Blue color

Charge air cooler inlet pipe side: Black color
Temporarily install the bolts and nuts shown in the figure.

Fig 3: Charge Air Cooler Pipe Bolts And Nuts
Courtesy of MAZDA
Tighten the charge air cooler in the order shown in the figure.

Fig 4: Charge Air Cooler Bolts Tightening Sequence

Courtesy of MAZDA