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Assembling spring strut

NOTE: When replacing the air spring, always replace the boot/bellows.

If the rolling piston slips out of the outer guide during disassembly, it must be correctly positioned again.

When sliding in the rolling piston, the roller must lie evenly between the outer guide and rolling piston (roll fold).
Make sure that everything remains absolutely clean. The smallest impurities can cause leakages.
Clean the contact surfaces of the sealing rings with a lint-free cloth.
Lightly grease sealing rings with Syntheso Glep 1 (ET No. 000.043.204.68).

If the shock absorber is not replaced, the sealing ring must be replaced.

Fig 1: Shock absorber sealing ring

GP00010306

Courtesy of PORSCHE OF NORTH AMERICA, INC.

1. Replace sealing ring on shock absorber -Arrow- (figure shows rear shock absorber). See Fig 1.

2. Pull boot/bellows completely over the collar of the shock absorber, so that it engages (small diameter downward, 2nd worker required).

3. Fit rubber stop (small diameter downward).

Fig 2: Roll fold

GP00010307

Courtesy of PORSCHE OF NORTH AMERICA, INC.

4. Position the air spring on the shock absorber. Grasp the rolling piston and push it downward by turning it slightly to the left and right. If the rolling piston has slipped out of the outer guide, it must be pushed back in again while forming a circumferential uniform roll fold on the rolling boot -Arrows- . See Fig 2.

Fig 3: Sealing ring

GP00010305

Courtesy of PORSCHE OF NORTH AMERICA, INC.

5. Clean the surfaces -2- on the mounting saddle and on the air spring with a lint-free cloth. Replace sealing ring -1- on the air spring. See Fig 3.

Fig 4: Residual pressure retaining valve

GP00010333

Courtesy of PORSCHE OF NORTH AMERICA, INC.

NOTE: To align the air spring, carefully turn the rolling piston in order to not damage the roller.

6. Fit and align the air spring. While doing so, the residual pressure retaining valve -1- must be located exactly at the imaginary axis of symmetry -Arrow- of the air-spring strut. The residual pressure retaining valve must be facing in the opposite direction to the CDC valve. See Fig 4.

7. Fit bellows at the top.

Fig 5: Removing/fitting spring-strut mount

GP00010311

Courtesy of PORSCHE OF NORTH AMERICA, INC.

8. Fit spring-strut mount using socket wrench insert 3353 and arm bracket P9630.

Fig 6: Fitting mounting saddle

GP00010336

Courtesy of PORSCHE OF NORTH AMERICA, INC.

9. Fit mounting saddle -Screws A- and align it so that the upper arm of the bearing -B- points to the residual pressure retaining valve. See Fig 6.

Fig 7: Aligning the mounting saddle

GP00010334

Courtesy of PORSCHE OF NORTH AMERICA, INC.

10. Align the air spring again so that the residual pressure retaining valve is located exactly at the axis of symmetry -Arrow- of the air-spring strut. See Fig 7.

11. Fill the air-spring strut. → 43 01 IN Filling specification for air-spring strut - as of MY 2003 (All Models Except Cayenne S TIO Titan) .