How to remove and reinstall the Ignition Switch from the steering lock housing on Audi TT Quattro?

Pull out the adjustable steering column as far as possible and center the steering wheel in a straight-ahead position. Disconnect the negative battery cable and cover the battery terminal to prevent accidental contact. Remove the driver's airbag, then take out the steering wheel. Next, remove the left side under-dash panel and then the steering angle sensor along with the steering column switches. Disconnect the electrical harness connector from the ignition electrical switch, remove locking fluid from the mounting screw holes, loosen the mounting screws slightly, and pull the ignition electrical switch out of the steering lock housing. Install in reverse order of removal, ensuring the ignition switch is in the on position and applying locking fluid to the mounting screws.

Genuine Audi TT Quattro Ignition Switch

Starter Ignition Switch

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3 Ignition Switches found

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Audi TT Quattro Ignition Switch Part Number: 4B0-905-849
$91.04 MSRP: $127.49
You Save: $36.45 (29%)
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Product Specifications
- Other Name: Switch
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000-2006 Audi TT Quattro | ALMS Edition, Base, Special Edition | 4 Cyl 1.8 L GAS, 6 Cyl 3.2 L GAS
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Audi TT Quattro Ignition Switch Part Number: 1K0-905-849-B
$95.24 MSRP: $133.38
You Save: $38.14 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2008-2015 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS, 6 Cyl 3.2 L GAS
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Audi TT Quattro Power Switch Part Number: 8S1-905-217
$103.52 MSRP: $144.98
You Save: $41.46 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch; Start Button
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016-2023 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS

Audi TT Quattro Ignition Switch

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Audi TT Quattro Ignition Switch Parts and Q&A

Ignition Switch
4B0-905-849
Q: How to remove and reinstall the Ignition Switch from the steering lock housing on Audi TT Quattro?
A:
Pull out the adjustable steering column as far as possible and center the steering wheel in a straight-ahead position. Disconnect the negative battery cable and cover the battery terminal to prevent accidental contact. Remove the driver's airbag, then take out the steering wheel. Next, remove the left side under-dash panel and then the steering angle sensor along with the steering column switches. Disconnect the electrical harness connector from the ignition electrical switch, remove locking fluid from the mounting screw holes, loosen the mounting screws slightly, and pull the ignition electrical switch out of the steering lock housing. Install in reverse order of removal, ensuring the ignition switch is in the on position and applying locking fluid to the mounting screws.