Checking rectangular rings item - 16 - for wear

WARNING: This page is about a different car, the 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Checking Rectangular Rings For Wear

Courtesy of VOLKSWAGEN UNITED STATES, INC.

NOTE:

Always replace rectangular rings. However, conclusions can be drawn from the signs of wear of the rectangular rings regarding the quality of contact surface for rectangular rings. Evaluating the rectangular rings for wear is therefore essential.

If rectangular rings show strong axial wear of more than 0.3 mm - arrow 1 - (slight wear of outer edges is normal):

Replace stator shaft.

If rectangular rings show strong radial wear of more than 0.3 mm - arrow 2 - (for comparison, measure thickness of new rectangular ring):

Replace cylinder "B".