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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Clutch System) >> Clutch Disc and Cover >> Inspection >> Clutch Disc

Clutch Disc

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
  1. Facing wear

    Measure the depth from the facing surface to the rivet head. Replace if the face is worn locally or worn down to less than the specified value.

    NOTE: Do not wash the clutch disc with any type of cleaning fluid.

    Depth to rivet head: 

    Limit of sinking 

    0.3 mm (0.012 in) 

    Fig 1: Measuring Depth From Facing Surface To Rivet Head
    G07680088Courtesy of SUBARU OF AMERICA, INC.
  2. Hardened facing

    Replace the clutch disc.

  3. Oil soakage on facing

    Replace the clutch disc and inspect the transmission front oil seal, transmission case mating surface, engine rear oil seal and other locations for oil leakage.

    Fig 2: Clutch Facing
    G07680089Courtesy of SUBARU OF AMERICA, INC.
  4. Deflection on facing

    If deflection exceeds the specified value at the outer circumference of the facing, replace the clutch disc.

    Limit for deflection: 

    0.7 mm (0.028 in) at R= 110 mm (4.33 in) 

    ST 499747100 CLUTCH DISC GUIDE

    Fig 3: Measuring Deflection Of Clutch Disc Guide
    G04991056Courtesy of SUBARU OF AMERICA, INC.
  5. If there is spline wear, loose rivets, failed damper springs, etc, replace the clutch disc.
    Fig 4: Spline, Rivet And Damper Spring
    G07680091Courtesy of SUBARU OF AMERICA, INC.