Audi A4 B9 / B9.5 — Traffic Sign Recognition (TSR) 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
Persistent across software updates and dealer visits

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 15/16/17 + USB-C LAN adapter