Place sealing washer or similar seal "2" into the groove of the wheel bearing housing (the sealing washer or similar gasket must be precisely matched to the groove width). Screw in bolt "1" until it touches the back of the sealing washer or similar part. Screw in bolt "1" further (half a turn), to widen the spline of the hub bearing housing. Remove the ball joint from the hub bearing housing.
Installation
Installation in reverse order. In this case, the following must be taken into account: insert the suspension joint "1" up to the support surface of the "arrow" into the hub bearing housing "2".
If the suspension joint "1" does not touch the support surface of the "arrow", this may cause damage in the area of the bolted connection on the hub bearing housing "2". Install the support arm. Tighten the wheel. Need to adjust the installation angles.
[The original source of the article can be found on the website AUDImanual.ru]