Audi A4 / S4 / RS4 B9 Mileage Blocker

Overview

The Audi A4 / S4 / RS4 B9 mileage blocker is a dedicated plug-in module that temporarily prevents additional mileage or kilometres from being recorded while the vehicle is moving.

Installed behind the instrument cluster, it connects through OEM-style plugs without cutting or soldering the vehicle’s wiring. When correctly installed, the module operates without warning lights or fault codes and retains normal speedometer and driver assistance functionality.

Connector and display configurations can differ between vehicles. Check your fitted instrument cluster and connector against the product information before selecting a module.

Compatibility

The Smelecom Audi A4 / S4 / RS4 B9 mileage blocker is listed for:

• Audi A4 B9
• Audi S4 B9
• Audi RS4 B9
• Vehicles with the display shown in the product images

Later Audi vehicles can use different 18-pin or 32-pin connectors and analogue or Virtual Cockpit displays. Confirm the exact combination fitted to your vehicle before ordering.

VAG-family connector types can also vary by model and year. If you need help confirming compatibility, contact Smelecom with your VIN and a clear photograph of your dashboard or instrument cluster.

Key Features

• Dedicated B9 fitment: Designed for compatible Audi A4 / S4 / RS4 B9 applications.
• Plug-and-play installation: Fits directly behind the instrument cluster without cutting or soldering the original wiring.
• OEM-style plug connections: Original-type connectors provide a secure, factory-style fit.
• Button-controlled operation: Activate or deactivate the module with a button press, including while the vehicle is moving.
• No active error messages: The module does not trigger warning lights or fault codes when correctly installed.
• No mileage jump after removal: Returning the vehicle to standard does not cause the odometer to catch up or jump forward.
• Last-setting memory: Remembers whether the module was on or off when the vehicle was last used.
• Working speedometer: The speedometer continues to operate normally while the module is active.
• Driver assistance retained: Driver assistance systems continue to function normally.

How Does the Audi A4 / S4 / RS4 B9 Mileage Blocker Work?

A small microcomputer inside the module connects to the wiring behind the instrument cluster. It selectively blocks and filters the mileage signal so that the odometer and related control units do not record additional distance while the module is active.

Correct installation keeps the system stable without warning lights. Deactivating the module restores normal vehicle operation, with mileage recorded in the usual way.

Follow the instructions supplied with your specific module for the correct activation and deactivation procedure.

Quality and Installation

Each unit is programmed and checked in-house before dispatch to ensure correct operation on the specified vehicle type. High-quality components are used for long-term operation in the dashboard environment.

Every kit includes a clear, step-by-step instruction pack. Installation by a suitably experienced auto electrician or specialist is recommended.

Confirm the fitted connector and display before installation, then follow the supplied fitting guide:

1. Switch off the ignition and allow the vehicle’s electrical system to shut down.
2. Access and remove the instrument cluster or Virtual Cockpit using the correct vehicle-specific procedure.
3. Disconnect the original cluster connector.
4. Connect the module inline between the vehicle wiring loom and the instrument cluster.
5. Where a Pin 1 or alignment mark is provided, align it correctly and do not force the connector.
6. On later Audi / VAG harnesses, connect the cluster end first where specified by the supplied fitting guide.
7. Ensure all plugs are fully seated and correctly oriented.
8. Secure the module and wiring so they cannot be trapped, pinched or strained.
9. Refit the instrument cluster and trim.
10. Switch the vehicle back on and confirm normal instrument-cluster and assistance-system operation.

Shipping and Availability

• UK and worldwide shipping available.
• Most in-stock orders are dispatched the same day.
• Next-working-day UK delivery options are available at checkout for eligible in-stock orders.
• International delivery options are available depending on destination.

Important Information

This product is supplied strictly for off-road, motorsport and tuning purposes only.

The customer is responsible for ensuring that use of the device complies with all applicable laws and regulations in their country or region.

For questions about Audi A4 / S4 / RS4 B9 compatibility, connector or display configuration, or installation, contact the Smelecom team before placing your order.