Tightening Torques - Air Suspension

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Location	Description	Type	Basic value
Mount for compressor	M8 x 50 thread	Tightening torque	20 Nm (15 ftlb.)
Mount for compressor	M8 x 70 thread	Tightening torque	20 Nm (15 ftlb.)
Mount for valve block	M6 thread	Tightening torque	10 Nm (7.5 ftlb.)
Mount for front pressure accumulator	M8 x 16 thread	Tightening torque	20 Nm (15 ftlb.)
Mount for rear pressure accumulator	M6 x 15 thread	Tightening torque	8 Nm (6 ftlb.)
Mount for rear pressure accumulator	M8 x 16 thread	Tightening torque	23 Nm (17 ftlb.)
Pressure line to valve block		Tightening torque	4 Nm (3 ftlb.)
Pressure line to spring strut		Tightening torque	3 Nm (2 ftlb.)

Fig 1: Identifying Front Air Spring Damper Components

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Location	Description	Type	Basic value	Tolerance 1
Residual pressure retaining valve to spring strut	Position 6	Tightening torque	10 Nm (7.5 ftlb.)
Union nut on residual pressure retaining valve		Tightening torque	3 Nm (2 ftlb.)
Mounting saddle to air spring	M8 thread; position 1	Tightening torque	30 Nm (22 ftlb.)
Bearing to shock absorber	M12 x 1.5 thread; position 3	Tightening torque	60 Nm (44 ftlb.)	+/-5 Nm (+/- 3.5 ftlb.)

Fig 2: Identifying Rear Air Spring Damper Components

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Location	Description	Type	Basic value	Tolerance 1
Residual pressure retaining valve to spring strut	Position 6	Tightening torque	10 Nm (7.5 ftlb.)
Mounting saddle to air spring	M8 thread; position 1	Tightening torque	30 Nm (22 ftlb.)
Bearing to shock absorber	M12 x 1.5 thread; position 3	Tightening torque	60 Nm (44 ftlb.)	+/-5 Nm (+/- 3.5 ftlb.)
Protection cap to shock absorber	Position 9	Tightening torque	8 Nm (6 ftlb.)