Cayenne S (9PA) V8-4.5L (2003)
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In such cases, the suspension subframe may be shifted slightly.
The suspension alignment of the Cayenne differs insignificantly to that of conventional suspension alignment. This applies to both the front and the
rear axles.
The varying strength spring shim, at the bottom between coil springs and spring seats (on the right and left spring struts on the front and rear axles) is
not intended for changing the vehicle height but for compensating for differences in coil-spring load groups.
If the differences in wheel load are too large, the arrangement of the coil springs (same coil springs left/right) and the arrangement of the shims at the
bottom (same shims at bottom left/right) must be checked. Only coil springs and shims with the same colour coding should be installed at bottom on
left and right.
Due to varying trim variants (additional equipment) a maximum difference in wheel load of 40 kg from left to right is permitted per axle. This is partly
the result of heavier components compared with standard equipment and partly results from additional components that are asymmetrically arranged.
Note!
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In general, the following applies: Max. 40 kg wheel load difference left to right per axle! However, no more than 60 kg difference in total
between front axle and rear axle!
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This means: A maximum of 40 kg at one axle and a maximum of 20 kg at the other axle!
Special notes for vehicles with air suspension
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If the vehicle is a Cayenne with air suspension, it must be adjusted to normal level. The vehicle normal level must be set from the low level. The
vehicle may be aligned and adjusted in this position only.
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If the control module or one of the level sensors was replaced, calibration must be carried out with the Porsche System Tester.
Adjust vehicle to normal level:
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Stop vehicle and apply brake.
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Close vehicle doors.
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Tap the right-hand rocker switch on the centre console in the appropriate direction until vehicle has reached low level. Then set the vehicle normal
level. The middle indicator light next to the rocker switch is on permanently. If a further indicator light should come on, a different level is
adjusted.
To avoid controlling the level of air suspension during the alignment, switch the level control off during alignment and switch it on again after work
has been completed.
Wheel-alignment corrections
Rear axle
Warning! Danger of injury and damage to property due to malfunctions in the PSM control range if the steering angle sensor is not
calibrated or is calibrated incorrectly!
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Calibrate steering angle sensor with wheels in straight-ahead position with the Porsche System Tester!
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The steering angle sensor actual value must be checked after a suspension alignment which resulted in no changes being made to the
wheel alignment values!
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The kinematic toe-in and caster cannot be adjusted!
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Camber and toe can be adjusted via eccentrics!
Front axle
Warning! Danger of injury and damage to property due to malfunctions in the PSM control range if the steering angle sensor is not
calibrated or is calibrated incorrectly!
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Calibrate steering angle sensor with wheels in straight-ahead position with the Porsche System Tester!
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The steering angle sensor actual value must be checked after a suspension alignment which resulted in no changes being made to the
wheel alignment values!
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The steering angle sensor must be calibrated if the previous wheel alignment values (on rear and/or front axle) were changed!
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After adjusting the toe, the lock nuts on the track rods must be tightened to the prescribed tightening torque of 70 Nm (52 ft. lbs.)!
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Use correct tightening torques!
General procedure for suspension alignment
Note! Carry out suspension alignment with an optical or electronic wheel alignment tester!
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The measurement procedures should be taken from the operating instructions for the wheel alignment tester involved!
In order to exclude erroneous measurements, the following preconditions must be met before alignment and the following points should be given
special attention:
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Empty weight of vehicle, i.e. vehicle in running condition, fully tanked with tyre repair kit or spare wheel and tools.
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Ballpoint and wheel-bearing play in order (wheel-bearing play cannot be adjusted).
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Tyre pressure in accordance with regulations, fairly uniform tyre tread.
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Quick-clamping holder for Cayenne (for the measured-value pickups) correctly secured to the wheels.
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Receiving surfaces for the quick-clamping holder on the wheels must be clean and flat. Always check the levelling surface on the wheels precisely