Auto Hold Hill Start Assist for Audi TT 8S

Auto Hold Hill Start Assist Retrofit Kit For Audi TT 8S

The Audi TT 8S is equipped with an electronic parking brake system, but some vehicles do not include the convenient Auto Hold function from the factory.

This Audi TT 8S Auto Hold Retrofit Kit allows you to add the original-style Auto Hold and Hill Start Assist function without replacing the complete braking system. The kit includes an Auto Hold switch and vehicle-specific wiring harness, providing the required hardware for retrofit installation.

After installation and professional coding, the Auto Hold system automatically stores the final brake pressure when the vehicle comes to a complete stop. The driver can release the brake pedal while waiting at traffic lights, in traffic jams, or during temporary stops.

When driving on slopes, the Hill Start Assist function helps prevent the vehicle from rolling backward or forward during startup, providing a smoother and safer driving experience.

The retrofit maintains the original Audi interior appearance while adding a practical function commonly found on higher-spec Audi models.

 

Compatible Models：

For 2015-2024  Audi TT 8S

 

Packaging content:

1 * Automatic hold switch
1 * Wire harness

Installation & Coding

Installation requires removing the center console switch panel and installing the Auto Hold switch.

The wiring harness needs to be connected according to the supplied installation instructions, including connection to the vehicle brake control system.

After hardware installation, vehicle coding is required to activate the Auto Hold function.

Recommended diagnostic equipment:

• ODIS
• ODIS-E
• 5054A
• 6154A
• DOIP Diagnostic Tools

Professional coding is recommended to avoid incorrect configuration or system errors.

Remote coding service is available separately if required.

Why Upgrade？

Add Missing Factory Auto Hold Function

Many Audi TT 8S models are equipped with electronic parking brakes but do not include Auto Hold from the factory. This retrofit adds the missing convenience feature.

Improve Daily Driving Comfort

Auto Hold eliminates the need to continuously press the brake pedal during traffic stops, making city driving easier and more comfortable.

Safer Hill Starts

Hill Start Assist helps prevent unwanted rolling on slopes, improving confidence when starting uphill.

OEM-Level Retrofit Experience

The kit is designed specifically for Audi TT 8S models, maintaining factory appearance and providing an integrated upgrade solution.

Enhance Driving Convenience

Enjoy a more advanced driving experience with a feature commonly available on higher-spec Audi vehicles.

FAQ：

Does this Auto Hold kit fit Audi TT 8S?

Yes. This retrofit kit is designed for Audi TT 8S models from 2015-2024, including TT, TTS, and TTRS models.

Does installation require coding?

Yes. After installing the hardware, coding is required to activate the Auto Hold function.

Does this replace the electronic parking brake?

No. This kit adds the Auto Hold function and works together with the original electronic parking brake system.

Can I install this kit myself?

The hardware installation can be completed by experienced retrofit installers. However, professional coding equipment and Audi diagnostic knowledge are recommended.

Will Auto Hold remain active after restarting the vehicle?

The system follows Audi factory operating logic. Depending on vehicle coding and configuration, Auto Hold may require activation after each startup.

Is this an original Audi part?

This is an OEM-style retrofit solution designed to add Audi factory Auto Hold functionality while maintaining the original interior appearance.

Do I need to provide VIN before ordering?

Yes. Audi TT 8S models may have different ABS modules and configurations. Providing VIN helps confirm compatibility before purchase.