Reference: AUD-A5F5-ACT-TSR
Brand: Audi
Reference: AUD-A4B9-ACT-TA
Brand: Audi
Brand: Retrofit.nu
Reference: AUD-ETGE-RET-HEAT
Brand: Audi
Unlock factory LED taillight animations on compatible Audi A4 B9 / B9.5 Facelift models (2020–2023). Many vehicles equipped with factory LED taillights (PR-8VM) support hidden animation profiles that are not enabled from factory.
This VIN-specific OEM activation is performed using RetroLab Pro — a guided workflow with no manual coding, no scripts, and no remote desktop session required.
After purchase, the activation is assigned to your vehicle’s VIN. Using a Windows PC and an ENet cable, you connect to the vehicle and perform the activation directly in RetroLab Pro. Only functions approved for your vehicle and configuration are shown in the application.
This taillight animation activation is also available for other Audi models equipped with compatible LED taillights.
Below are some common questions about activating taillight animations on Audi A4 B9 models.
Will this work on North American (NAR) vehicles?
Yes. This activation works on Audi A4 B9 / B9.5 Facelift models from all regions including North American vehicles.
Do I need to change my taillights?
No. Your vehicle must already be equipped with factory LED taillights with PR code 8VM. The activation enables animation functions already supported by the existing hardware.
Which animation will my car get?
The available animation depends on the body style. Avant models support both S and RS animations, while Sedan / Limousine models support the S animation.
Is remote coding required?
No. The activation is performed using the RetroLab Pro application with a guided VIN-specific process.
Want to see how it works in practice?
Read the full demo in our blog
Starting from model year 2024, most Audi vehicles are equipped with SFD2 (Schutz der Fahrzeugdiagnose 2) security protection. This system prevents remote coding, dataset uploads and activations outside of authorized workshop environments.
If your vehicle has one of the following PR codes, it is protected by SFD2:
Vehicles with SFD2 cannot be activated remotely.
For these vehicles, we only offer installation and activation at our workshop in Vellinge, Sweden. If you are unsure whether your vehicle has SFD2, please contact us before ordering.
All coding, adaptations and feature activations are performed using RetroLab Pro. No third-party tools, scripts or manual coding are required.
Hardware installation must be carried out according to Audi factory repair manuals and wiring diagrams. We do not provide trim removal or mechanical disassembly guides.
You must be comfortable working on your vehicle or have a professional workshop perform the installation. Remote activation support is available if required (additional cost may apply).
Audi A4 B9.5 taillight animation activation for LED models (PR-8VM). Activated via RetroLab Pro PC app. S and RS sequences supported.