1. Remove the clamps and vacuum hose (power brake unit side).
2. Insert a thin flathead screwdriver at the point indicated by the arrow in the figure, push the ring down and disconnect the vacuum hose from the intake manifold. (L8, LF, L3, L3 Turbo)
3. Pinch open the clip using pliers and disconnect the vacuum hose from the vacuum pump. (MZR-CD (RF Turbo))
4. Remove the vacuum hose.
5. Install in the reverse order of removal.
6. Verify that the vacuum hose is inserted so that the joint contacts the intake manifold ring. (L8, LF, L3, L3 Turbo)