Lock cylinder, removing and installing

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The immobilizer reading coil is integrated with the lock cylinder and cannot be serviced or replaced individually.
Should the reading coil malfunction, replace complete lock cylinder. .
Observe reading coil specifications when replacing lock cylinders → Reader coil, replacing .

Removing

Remove steering column switch module → Steering column switch module, removing and installing
Disconnect electrical connection at reader coil.

Vehicles with automatic transmission:

Move selector lever to "P".

Fig 1: Turn Ignition Key To "Ignition On" Position

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Turn ignition key to "Ignition ON" position - arrow -.
Then lift interlock lever - 1 - slightly and pull locking cable - 2 - out of ignition lock housing.

All models:

NOTE:

The spare key is necessary for removing the lock cylinder, because the following sequence can only be performed using an ignition key with flat key grip, i.e. without illumination and without remote control.

Fig 2: Aligning Recess In Trim

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Turn spare key to ignition "ON" position, thus aligning recess in trim - arrow - with hole in ignition lock.

NOTE:

The illustration shows the correct lock position without the ignition key.

Fig 3: Identifying Steel Wire In Hole, Lock Cylinder And Reader Coil Out Of Steering Lock Housing

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert a steel wire or pin ( approx. 1.5 mm) in hole - 1 - as far as it will go, at the same time pulling lock cylinder - 2 - with reader coil out of steering lock housing - 3 -.

CAUTION: Steering lock must not be operated without the lock cylinder, otherwise it will lock completely. The entire steering lock must then be replaced.

NOTE:

When replacing lock cylinder, note immobilizer reader coil specifications → Reader coil, replacing .

Installing

Install in reverse order of removal, noting the following:

Insert spare ignition key into lock cylinder and turn to ignition "on" position.

Fig 4: Identifying Steel Wire In Hole, Lock Cylinder And Reader Coil Out Of Steering Lock Housing

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Re-insert steel wire/pin - 1 - in hole on end face as far as it will go.
Insert lock cylinder - 2 - with reader coil in steering lock housing - 3 -.
Then pull out steel wire and press in lock cylinder firmly until catch engages audibly.
Connect electrical connector on immobilizer reader coil.

Vehicles with automatic transmission:

Turn ignition key to "Ignition ON" position.
Slide locking cable - 2 - into ignition lock housing until it engages audibly.