Audi A4 B7 Switch ESP Brake Traction Control Button Unit 8H2927134A

Audi A4 B7 Switch ESP Brake Traction Control Button Unit is an original component from the Switches, control elements and ignition locks group, designed to operate the electronic stability program and functions related to traction and the braking system. It is a factory-fitted button module from the center console, which allows for convenient and precise control of safety functions in your Audi.

Specifications and technical data

• SKU: RHD-8H2927134A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H2927134A
• Substitutable numbers: 8H2927134A, 8H2 927 134 A
• Category: Switches & Controls

Function and application of the ESP switch in Audi A4 B7

The presented switch is responsible for controlling the ESP system as well as traction and braking control functions in the Audi A4 B7 generation model. Located in the center panel, it provides quick access to key settings for driver assistance systems. Thanks to its factory design, it works seamlessly with the vehicle's electrical installation and original control modules, allowing for full functionality of safety systems to be maintained.

This component is particularly useful when replacing a damaged button panel, repairing the interior after a collision, or restoring the car to its factory configuration. Original craftsmanship guarantees a proper fit in the console and correct operation of the backlighting and pictograms.

Construction and integration with the control system

The Audi A4 B7 Switch ESP Brake Traction Control Button Unit is an integrated button module that communicates with the vehicle's electronics via a dedicated connector. The design provided by the manufacturer allows for:

• stable mounting in the center panel without the need for modifications,
• secure connection to the electrical harness,
• clear labeling of functions related to ESP and traction.

As a result, the replacement is carried out in an orderly manner, and the module can be recognized by the existing vehicle controllers after correct installation. Consistency with the factory control system reduces the risk of communication errors and diagnostic issues.

Benefits of using an original switch

Using an original ESP switch in the Audi A4 B7 allows you to maintain compliance with the vehicle's factory specifications. In practice, this means:

• correct operation of the ESP and traction control system on/off functions,
• aesthetic match with other center console elements,
• no need for mechanical or electrical adaptation.

This solution is particularly beneficial for vehicle repairs where visual and functional interior consistency is important, as well as for servicing fleet vehicles, where the repeatability and predictability of component operation are key.

Characteristics of the used component

The offered switch comes from disassembly and is a used component, which allows you to reduce repair costs while maintaining the original manufacturer's specifications. This type of part is a good choice when you care about a factory fit while avoiding the investment in a new panel. A used button module can also be a beneficial solution for older Audi A4 B7 models, where the priority is restoring full functionality of safety systems.

Related categories and additional information

If you are planning a comprehensive repair or upgrade of the cockpit area in your Audi and need other elements from the same group, such as button panels, control modules, or ignition lock assemblies, check the available parts in the Audi Switches, control elements and ignition locks category.

If you are considering a wider use of disassembled components in your car and want to learn practical tips on selecting premium used parts, read the article Used parts for Mercedes – original parts from disassembly, which discusses the advantages of using original components from the secondary market in premium segment vehicles.