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Home >> Audi >> 2021 >> S6 Premium Plus >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Suspension (3 Of 3) >> 42 Rear Suspension >> Description And Operation >> Rear Suspension Strut Overview, Sport, S4/S6 >> Notes

Rear Suspension Strut Overview, Sport, S4/S6: Notes

CAUTION:
  • As assembled, the coil spring is compressed and under load. Avoid personal injury by using a suitable spring compressor tool when servicing the coil spring assembly.
  • If the tools shown in the illustrations are unavailable, spring compressor US 1117 or an equivalent tool can be used.
  • Always follow the manufacturer's instructions for the tool you are using.
NOTE:

Install suspension strut in spring compressor : VAG1752/2  or equivalent to disassemble REAR SUSPENSION STRUT .

Fig 1: Rear Suspension Strut Overview, Sport
GWWV42-0937Courtesy of AUDI OF AMERICA, LLC
  1. Self-locking nut
    • Always replace
    • 50 Nm (37 ft lb)
  2. Stop plate
  3. Stop ring
  4. Strut adapter
    • Left and right sides different
    • Attached marking tab (left side: rounded, right side: square) points outward
  5. Rubber mounting
    • Insert locating knobs in adapter recess during installation
  6. Upper spring seat
  7. Shock absorber bracket ring
  8. Damping ring
  9. Bump stop
    • Note different types
    • Imprint on data plate indicates: 1BE = Sports version
  10. Protective sleeve
  11. Coil spring
    • Can be replaced individually
    • Note different types
    • Refer to vehicle data plate for spring type before replacing
    • Color code on spring points to lower spring seat
    • Install on lower spring seat so the end of spring coil contacts spring seat stop
    • Spring end of coil spring must cover all three holes in upper spring seat
  12. Protective cap
    • Install on shock absorber
  13. Lower spring seat
  14. Gas pressure shock absorber
    • Can be replaced individually
    • Note different types
    • Shock absorber shaft thread size: M12
    • Use proper disposal procedures for removed shock absorbers before scrapping

      Checking gas-filled shock absorbers (removed)

      -- Compress shock absorber by hand.

      -- Resistance must be even and smooth over entire stroke

      -- Release shock absorber shaft.

      If gas pressure in the shock absorber is adequate, piston rod will return by itself to the starting position.

      If not, the shock absorbers do not necessarily need to be replaced. Unless there has been a significant loss of oil, a gasfilled shock absorber will continue to perform in the same way as a conventional shock absorber.