Checking adjusting the height

General

Adjust the height on the front axle at the adjustment nuts on the lower spring retainer (as on 964).

For height adjustment on the rear axle, the strut must be removed to allow other spacers to be inserted at the upper spring retainers.

The max. admissible front-to-rear deviation of 10 mm from the specified height must not be exceeded, i.e. the height at the front axle must not be exceeded by 10 mm (full positive tolerance) if the height at the rear axle is 10 mm below the specification (full negative tolerance). The general rule is: Use the mean value of the front-axle measurements vs. the mean value of the rear-axle measurements as a basis for calculation.

Note

The height adjustment feature of the front

1. Correct differences in the left-to-right wheel loads. When the height is correct, the wheel load differences are within a specified range if the coil springs of each axle have an identical installation length (installed spring preload).

Wheel load scales may be used to keep the wheel load differences as small as possible. The left-to-right tolerance on the front and rear axles must be below 20 kg.

2. Any excessive height differences between front axle and rear axle can only be compensated (within the acceptable tolerance range) at the front axle.

Front axle

Park car on a level surface or on the test station to check the ride level height (road-worthy vehicle, fuel tank full, with spare wheel and tools in car). Jounce vehicle and rear and front axle 2 or 3 times and let the springs return the car to its normal height.

Adjusting nut (of front axle)

- turn to the right = vehicle is raised

- turn to the left = vehicle is lowered

Measure distance from road contact surface point to bottom of bolt head of outer cross-member-to-body bolt connection. For front axle and rear axle specifications,

The ride level height at the front axle is adjusted by turning the adjusting nut on the lower spring retainer. Use a hook wrench or Special Tool VW 637/2 (lever) for this adjust-

Rear axle

Measure from road contact surface to rear mating face on the bottom of the suspension subframe! The ride level height of the rear axle is corrected by modifying the spacer thickness at the upper spring retainers. The struts must be removed for this operation.

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