RS 6 V8-4.2L Turbo (BCY) (2003)
Fig 4. Inserting inner sealing lip of dust seal using 3409 wedge.
Note:
Hold piston in front of caliper housing for this procedure.
Fig 5. Screwing piston into brake caliper housing until stop
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Install piston by turning threaded spindle - A - clockwise and knurled section - B - counter-clockwise.
Note:
Outer sealing lip of dust seal will then engage in piston groove.