Audi A4 / S4 / RS4 B9 / B9.5 — Traffic Sign Recognition Activation

Unlock the factory Traffic Sign Recognition that's already sleeping in your A4 — speed limits and road signs appear right in the cluster.

€75

One-time · Permanent VIN-verified Same-day confirmation

What You Get

Many Audi A4 B9 / B9.5 vehicles are already equipped with the hardware required for Traffic Sign Recognition (TSR) — front camera, navigation and a supported instrument cluster — but the functionality stays dormant because Audi never enabled it from factory. This activation enables full OEM Traffic Sign Recognition on compatible A4s through a guided, VIN-specific OEM workflow inside RetroLab Pro: no dealer visit, no remote coding session, and no manual scripts required.

How It Changes Behavior

From factorythe front camera still records the world, but the cluster never displays speed limits or warning signs — even though every cable and every byte of cluster firmware is ready for it.

After activationdetected traffic signs appear live in the instrument cluster / Virtual Cockpit, matching the exact OEM look and behaviour as on factory-coded A4 trims.

100% OEM integration — identical to factory-coded A4s
Traffic signs displayed directly in the cluster / Virtual Cockpit
1-Click activation through the RetroLab Pro app
No remote coding session required
Guided, VIN-specific OEM activation workflow
Lifetime VIN licence — reactivate free if a dealer update ever resets it

Requirements

Audi A4 B9 / B9.5 (2016–2023)
Front camera installed (PR-QK1)
Navigation system installed
Instrument cluster with TSR support: PR-9S7 (DIS), PR-9S8 (Virtual Cockpit Pre-FL), or PR-9S9 (Virtual Cockpit FL)
Windows PC + ENet cable, or iPhone 13/14 + Lightning-to-LAN adapter, or iPhone 15/16/17 + USB-C-to-LAN adapter

Compatibility Notes

Not supported: vehicles with the basic instrument cluster PR-9S5
Not supported: A4 B9 / B9.5 without front camera PR-QK1
Not supported: A4 B9 / B9.5 without factory navigation

Compatible Variants

A4 B9, A4 B9.5, S4 B9 / B9.5, RS4 B9 / B9.5 — EU & NAR markets

Frequently Asked Questions

Does this work on the S4 and RS4?

Yes. The S4 and RS4 B9 / B9.5 share the same platform, front camera (PR-QK1) and instrument cluster architecture as the A4 B9. The activation process, pricing (€75), and compatibility requirements are identical across A4, S4 and RS4.

Does TSR work in the UK and Europe?

Yes. Traffic Sign Recognition reads local road signs wherever you drive — UK, German, French, Italian, Spanish, Dutch and other European formats are all supported. The A4, S4 and RS4 B9 are among our most popular TSR requests from European and UK customers. Even EU-spec vehicles sometimes leave the factory with TSR dormant — this activation enables it permanently for €75.

Does TSR work in the USA and Canada?

Yes. NAR-spec (North American Region) Audi vehicles are fully supported. The activation method, price and workflow are identical to the UK and European process.

TSR available on 11 Audi models across EU & UKSee all supported models