Reference: AUD-A5F5-ACT-TSR
Brand: Audi
Reference: AUD-A4B9-ACT-TA
Brand: Audi
Brand: Retrofit.nu
Reference: AUD-ETGE-RET-HEAT
Brand: Audi
Many Audi A4 B9 / B9.5 vehicles are already equipped with the hardware required for Traffic Sign Recognition (TSR). In many cases, the functionality is present but not activated from factory.
This activation enables full OEM Traffic Sign Recognition on compatible vehicles equipped with a front camera (PR-QK1), navigation, and a supported instrument cluster.
Using RetroLab Pro, you can unlock full factory Traffic Sign Recognition functionality through a guided, VIN-specific OEM activation process — no dealer visit, no remote coding session, and no manual scripts 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 using RetroLab Pro. The application automatically detects your vehicle configuration and only allows compatible activations.
This Traffic Sign Recognition activation is also available for other compatible Audi models.
Below are some common questions about Traffic Sign Recognition activation.
Do I need to retrofit extra hardware?
No, as long as the vehicle is already equipped with the required front camera, navigation, and a supported instrument cluster.
Will this work on North American (NAR) vehicles?
Yes. This activation works on supported vehicles from all regions, including North American vehicles.
Where are the traffic signs displayed?
Traffic signs are shown directly in the instrument cluster or Virtual Cockpit, depending on the vehicle configuration.
Is remote coding required?
No. The activation is performed directly in RetroLab Pro using a guided VIN-specific process.
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).
Activate Traffic Sign Recognition on Audi A4 B9/B9.5 using RetroLab Pro. Displays speed limits in the cluster. For vehicles with camera and navigation.