Lock cylinder, disassembling and assembling: Assembling

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

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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

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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

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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

Courtesy of AUDI OF AMERICA, INC.