The latest addition means it now offers a range of chassis parts for the T5, including control arms, stabiliser links and rubber-bonded metal mounts.
ZF says wear damage on the suspension-strut mount often occurs on this vehicle due to the undersized ball bearing in the initial design. VW replaced the component with a version with a larger bearing, although both versions can still be found in the market. ZF Aftermarket offers both types, but advises customers to upgrade to the new version where the initial version is still fitted.
When removing the affected parts, the technician must always note which of the two variants is fitted to the vehicle. A damaged spring plate on the earlier bearing variant means having to replace the entire assembly as new spring plates are no longer available. The workshop must therefore install a new suspension-strut mount, spring plate and ball bearing. ZF Aftermarket also recommends always replacing these parts per axle to ensure consistent vehicle handling on both sides.
Certain points need to be considered when replacing the T5 control arm. After removing the old part, the supporting surface of the ball stud on the steering knuckle should be cleaned with sandpaper, followed by a suitable cleaning agent. Otherwise, it says, rust and dirt particles may penetrate the joint of the new control arm via the ball stud, resulting in rapid wear.
Do not tighten the mounting bolts and nuts with the suspension still in the fully unloaded state, or the rubber bearings will be deformed when lowering the vehicle on to the wheels.
The next step is to lower the vehicle until the chassis is fully compressed. There may, however, be regulations governing the position in which the bolts and nuts are tightened depending on the vehicle model – so note the manufacturer’s installation instructions. Finally, check and set the wheel alignment according to the manufacturer’s specifications.