Service Information: Threaded connections of rubber bushings and control arms

 Due to recent events we would like to inform you once again that the threaded connections of the rubber bushings and control arms must be tightened with the vehicle in the "ready to drive" state only, as stated in the corresponding documents.

This applies to components like:

- Spring control arms

- Transverse control arms

- Cross struts

- Torque struts

- Thrust arms

- Camber struts

- Track rods

The "ready to drive" state means that the vehicle's gas tank is full (extra weight is added if necessary) and the vehicle is resting with its full weight on all four wheels (on the lifting platform or pit).

If the threaded connections of the rubber bushings or control arms are tightened with the vehicle raised (suspension not under full weight of vehicle), then after the vehicle is lowered and under its full weight, the rubber bushings will be under high torsional pressure which could result in some serious disadvantages:

 The useful life of the bushings will be considerable reduced.

 The vehicle dynamics will be negatively affected (altered elastokinematics).

 The height of the vehicle may be too high.