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HOMESERVICE MANUALSAUDI1999A8 QUATTROREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEEXTERIOR BODY PANELSHOOD LIDSREAR LID, ADJUSTINGLOCK CYLINDER, DISASSEMBLING AND ASSEMBLINGASSEMBLING
1999 Audi A8 Quattro

Lock cylinder, disassembling and assembling: Assembling

1999 Audi A8 QuattroSECTION Assembling
  • Key inserted in lock cylinder
  • Hold lock cylinder -1- so groove -2- faces technician.
  • After greasing with G 000 400, slide compression spring -6- into lock cylinder.
  • After greasing with G 000 400, place roller -3- into underside of lock cylinder.
  • Install lock cylinder -1- vertically from below into housing -5-.
    NOTE:
    • When installing the lock cylinder -1- in the housing -5-, make sure that both rollers -3- do not drop out of the guides during assembly.
    • Align slot -2- and guide lug -4- during assembly.
    • Fig 1: Identifying Lock Cylinder Components
    G02727675Courtesy of AUDI OF AMERICA, INC.
  • Press lock cylinder with key completely into lock cylinder housing against spring pressure.
  • Place coupling piece -1- onto lock cylinder.
    NOTE: The coupling piece must be placed so that the two guide pins (arrows) for torsion spring are aligned.
    • Fig 2: Placing Coupling Piece Onto Lock Cylinder
    G02727676Courtesy of AUDI OF AMERICA, INC.
  • Turn key to left to stop and keep lock cylinder and key pushed into lock cylinder housing against spring pressure.
  • Place upper roller in newly opened space.
  • Using small screwdriver, push roller into lock cylinder while shifting coupling piece up until impact.
  • Install torsion spring -1- so spring ends (arrows) lie on left and right of guide pins.
    • Fig 3: Installing Torsion Spring
    G02727677Courtesy of AUDI OF AMERICA, INC.
  • Install follower -1- in position -A- or -B-:
    • Position -A-: open
    • Position -B-: closed
    1. Follower
    2. Lock cylinder housing
    • Fig 4: Identifying Follower And Lock Cylinder Housing
    G02727678Courtesy of AUDI OF AMERICA, INC.
  • Attach circlip.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.