How to remove and install the ignition lock cylinder and ignition switch on Audi A4?

The ignition switch which is found under steering column, with switch on the left and key lock cylinder on the right is a cast-metal housing, ignition lock cylinder, and an electrical component, called switch device. Start by removing the cable of the negative post of the battery and take off the steering column covers and the steering column switch assembly. In the case of automatic transmissions in the model, it is necessary to ensure that the shift linkage is in Park before you can proceed. Insert the key into the lock and switch it to the ON position, and then will have to release the retaining clip to take the park/lock cable out of the ignition switch. In case of a key lock cylinder, to take it out, leave the key in the "ON" position and position the access hole with the mark on the trim. The assembly can be pulled out using a straightened large paper clip, taking into consideration that the reader coil is embedded in the lock cylinder and cannot be removed independently of it. The installation of key lock cylinder is done in the same manner as in the "ON" position, just insert it, until it clips as compared to the paper clip, switch the key to the Lock position and it is removed. In the case of the ignition switch, unscrew the electrical connector of large size on the left hand, scrape the locking coating out of the switch retaining screw heads and loosen the screws without their removal, then withdraw the switch out of the ignition assembly. The method to solve the lock housing is to loosen the steering column mounting bolts and move the column downwards ensuring that the mounting brackets are not damaged. To remove the housing cut slots into the shear bolt heads or drill them out and make sure the installation is opposite to the removal tightening the new shear bolts until the heads break off.

Genuine Audi A4 Ignition Lock Cylinder

Ignition Key Lock Cylinder

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10 Ignition Lock Cylinders found

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Audi A4 Ignition Lock Cylinder Part Number: 8E0-905-855
$142.80 MSRP: $200.00
You Save: $57.20 (29%)
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Product Specifications
- Other Name: Cylinder; Ignition Cylinder
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2002-2003 Audi A4 | Base, Cabriolet | 4 Cyl 1.8 L GAS, 6 Cyl 3.0 L GAS
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Audi A4 Ignition Lock Cylinder Part Number: 107-905-855-CF
$172.54 MSRP: $241.65
You Save: $69.11 (29%)
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Product Specifications
- Other Name: Cylinder; Ignition Lock Cylinder, Lock Cylinder
- Replaces: 107-905-855-CD
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2003-2009 Audi A4 | Base, Cabriolet | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Audi A4 Lock Cylinder Part Number: 107-857-113-JH
$201.11 MSRP: $281.66
You Save: $80.55 (29%)
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Product Specifications
- Other Name: Cylinder
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2017-2020 Audi A4 | Premium, Premium Plus, Prestige, Titanium | 4 Cyl 2.0 L GAS
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Audi A4 Ignition Lock Cylinder Part Number: 4D0-905-855-J
$265.37 MSRP: $371.67
You Save: $106.30 (29%)
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Product Specifications
- Other Name: Cylinder; Cylinder & Keys
- Replaces: 4D0-905-855-B
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1997-2000 Audi A4 | Avant, Base | 4 Cyl 1.8 L GAS, 6 Cyl 2.8 L GAS
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Audi A4 Ignition Lock Cylinder Part Number: 4D0-905-855-G
$308.50 MSRP: $432.06
You Save: $123.56 (29%)
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Product Specifications
- Other Name: Cylinder; Ignition Lock Cylinder
- Replaces: 4D0-905-855-D, 4D0-905-855-E
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1996-2001 Audi A4 | Avant, Base | 4 Cyl 1.8 L GAS, 6 Cyl 2.8 L GAS
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Audi A4 Ignition Lock Cylinder Part Number: 8E0-905-855-C
$318.31 MSRP: $445.82
You Save: $127.51 (29%)
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Product Specifications
- Other Name: Cylinder; Cylinder & Keys, Ignition Cylinder
- Replaces: 8E0-905-855-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2003-2007 Audi A4 | Base, Cabriolet | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Audi A4 Control Module Part Number: 8K0-905-852-D
$493.85 MSRP: $691.67
You Save: $197.82 (29%)
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Product Specifications
- Other Name: Steering Lock; Control Box
- Replaces: 8K0-905-852-A, 8K0-905-852-C
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2012 Audi A4 | Base | 4 Cyl 2.0 L GAS
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Audi A4 Control Module Part Number: 8K0-905-852-E
$493.85 MSRP: $691.67
You Save: $197.82 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Steering Lock; Control Box
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2013-2016 Audi A4 | Base, Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi A4 Ignition Lock Cylinder Part Number: 4D0-905-855-A
$195.64 MSRP: $274.00
You Save: $78.36 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1996 Audi A4 | Base | 6 Cyl 2.8 L GAS
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Audi A4 Ignition Lock Cylinder Part Number: 8E0-898-375-AB
$699.11 MSRP: $903.83
You Save: $204.72 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Lock Cylinder
- Replaces: 8E0-898-375-M, 8E1-800-375-BA, 8E0-898-375-D, 8E1-800-375-BB, 8E1-800-375-EF, 8E1-800-375-EG
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2007-2008 Audi A4 | Base, Cabriolet | 4 Cyl 2.0 L GAS, 6 Cyl 3.2 L GAS

Audi A4 Ignition Lock Cylinder

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Audi A4 Ignition Lock Cylinder Parts and Q&A

Ignition Lock Cylinder
107-905-855-CF
Q: How to remove and install the ignition lock cylinder and ignition switch on Audi A4?
A:
The ignition switch which is found under steering column, with switch on the left and key lock cylinder on the right is a cast-metal housing, ignition lock cylinder, and an electrical component, called switch device. Start by removing the cable of the negative post of the battery and take off the steering column covers and the steering column switch assembly. In the case of automatic transmissions in the model, it is necessary to ensure that the shift linkage is in Park before you can proceed. Insert the key into the lock and switch it to the ON position, and then will have to release the retaining clip to take the park/lock cable out of the ignition switch. In case of a key lock cylinder, to take it out, leave the key in the "ON" position and position the access hole with the mark on the trim. The assembly can be pulled out using a straightened large paper clip, taking into consideration that the reader coil is embedded in the lock cylinder and cannot be removed independently of it. The installation of key lock cylinder is done in the same manner as in the "ON" position, just insert it, until it clips as compared to the paper clip, switch the key to the Lock position and it is removed. In the case of the ignition switch, unscrew the electrical connector of large size on the left hand, scrape the locking coating out of the switch retaining screw heads and loosen the screws without their removal, then withdraw the switch out of the ignition assembly. The method to solve the lock housing is to loosen the steering column mounting bolts and move the column downwards ensuring that the mounting brackets are not damaged. To remove the housing cut slots into the shear bolt heads or drill them out and make sure the installation is opposite to the removal tightening the new shear bolts until the heads break off.