Lock cylinder, removing and installing: Removing

• Steering column switch, removing. See Steering column switches, removing and installing .

For vehicles with automatic transmission, locking cable must be disengaged 

• Place selector lever in position "P."
• Switch ignition key in position -B- to "Ignition ON." See Fig 1.
• Then lift interlock lever -1- slightly and pull locking cable -2- from ignition lock housing.
  NOTE: Spare key/valet key is required to remove lock cylinder. The following procedure is only possible for ignition keys with flat key grip, i.e. without illumination and without remote control.
Fig 1: Switching Ignition Key, Lifting Interlock Lever & Pulling Locking Cable From Ignition Lock Housing
Courtesy of AUDI OF AMERICA, INC.
• Insert spare key/valet key in ignition lock and turn to position "Ignition ON", this will reveal the opening/hole in front of the lock next to the ignition key slot.
• Insert length of steel wire -1- (approx. 1.5 mm) as far as it will go, as shown. Then pull lock cylinder out of steering lock housing -2- in direction of arrow -B-.
Fig 2: Inserting Steel Wire & Pulling Lock Cylinder Out Of Steering Lock Housing
Courtesy of AUDI OF AMERICA, INC.