WiFENIX DIAGNOSTIC SYSTEM
What does your engine want to tell you?
Now you can listen. WiFENIX – the wireless diagnostic system for your classic Renault.
Plug in. Connect. Go.
WiFENIX plugs into the original 12-pin diagnostic socket and connects via Wi-Fi directly to your laptop. No cable mess, no adapters.
Up and running in two minutes.
Find faults. Without guesswork.
Stored and current faults appear as a clearly named list with status indicators – you can immediately see which sensor is causing trouble.
Plus all inputs and outputs live: from the fuel pump relay to the lambda control.
Your cockpit. Digital.
Round gauges just like the original – plus the displays your dashboard never had: intake manifold pressure (MAP), throttle position, mixture, gear indicator.
Perfect for test drives with a passenger and laptop. Or simply because it looks great.
All values. Live.
RPM, temperatures, intake pressure, injection duration, ignition timing, lambda, battery voltage – clearly grouped and in real time.
WiFENIX even calculates your current fuel consumption.
Adjust. Without flying blind.
Throttle position sensor (TPS) and idle bypass screw can be dialled in to the exact value with WiFENIX: you see the value changing live as you turn – and adjust exactly to target.
And everything stays stock: adjustments are made on the car, not in the software.
See how everything connects.
All values as real-time graphs – freely combinable, with zoom and history.
The sharpest tool for difficult cases: if a sensor drops out for just a second, a connector wobbles, the voltage dips briefly, or a value spikes unexpectedly – you see it immediately in the graph. Even as a beginner.
From now on, no more secrets between the two of you.
Leave it in. Record everything.
The intermittent fault that only shows up when no laptop is around? That's exactly what WiFENIX is made for: it stays permanently in the car and records every journey completely – all data, up to 60 hours. The oldest recordings are then automatically overwritten. Like a black box for your engine.
And you don't need to worry about it: when the ignition is off, WiFENIX enters standby mode, and wakes up automatically at the next start.
Watch your ECU think.
Live 3D maps for injection, ignition and lambda control: you see in real time which operating point your engine is currently working at.
Not even the Renault workshop of the time got to see this.
Made for your Renault.
For almost all Renaults from 1985 to 1999 – whether your car is included, you can see below in the vehicle list.
📦 What's in the box:
- WiFENIX V1.0 diagnostic device (Assembled in Germany)
- Quick start guide
- Windows software as a free download (link below under Software Download)
🔍 Compatible with:
WiFENIX works with vehicles fitted with a 12-pin Renault diagnostic connector and a SIEMENS, FENIX or RENIX ECU (1/3/3B) – model years approx. 1985 to 1999. This is what the socket looks like:
Show vehicle list (26 vehicles)
| Vehicle | Year (approx.) |
|---|---|
| Alpine A610 V6 Turbo 3.0 (Z7X) NEW | 1991–1995 |
| Alpine GTA V6 Turbo 2.5 (Z7U) NEW | 1987–1990 |
| Alpine GTA V6 Turbo 2.5 (Z7U) no cat | 1985–1990 |
| Clio 16V 1.8 (F7P) | 1991–1996 |
| Clio RSi 1.8 (F3P) | 1993–1996 |
| Clio Williams 2.0 (F7R) | 1993–1995 |
| Espace II 2.2i (J7T) | 1991–1996 |
| Laguna 2.0 (F3R) | 1994–1998 |
| Master 2.2i (J7T) | – |
| R5 GTE 1.7 (F3N) | 1986–1991 |
| R5 GTX 1.7 Monopoint (F3N) | 1989–1996 |
| R19 1.7i (F3N) | 1988–1992 |
| R19 1.7 Monopoint (F3N) | 1988–1992 |
| R19 1.8 Monopoint (F3P) | 1992–1996 |
| R19 1.8i (F3P) | 1992–1994 |
| R19 16V 1.8 (F7P) | 1990–1996 |
| R21 2.0i (J7R) no cat | 1986–1993 |
| R21 2.2i (J7T) | 1989–1994 |
| R21 2.2i (J7T) no cat | 1986–1993 |
| R21 Turbo 2.0 (J7R) no cat | 1987–1993 |
| R21 Turbo 2.0 (J7R) | 1991–1993 |
| R25 V6 Turbo 2.5 (Z7U) | 1985–1992 |
| Safrane 2.0i (J7R) | 1992–1996 |
| Safrane V6 3.0 (Z7X) | 1992–1996 |
| Safrane V6 Biturbo 3.0 (Z7X) NEW | 1993–1996 |
| Skoda Favorit 135 GLi 1.3 | 1993–1994 |
Updated: 14 Oct 2026 · 26 vehicles
🚗 Your vehicle isn't listed?
No problem – just write to us. In most cases we can add your vehicle: you record a few drives with your WiFENIX, we build your model profile from them – and everyone gets it as a free update.
Don't drive a Renault? The same ECU families were fitted in other makes at the time – ask us and we'll check your ECU.
📌 Reference numbers / Comparison:
- Modern successor to the Renault XR25 / XR25S diagnostic case (manufacturer: ACTIA) – read only, no write function
- Known in French as: valise XR25 / valise de diagnostic Renault
- Related systems: ACTIA NXR, Renault CLIP (for newer models)
- Part number: R-WiFENIX-SYS
💾 Software Download:
Get the software here – free download ⬇Windows 10/11 (64-bit) · German, English, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Russian
🔧 Technical Specs & Notes:
By the way: For professionals there is an expert mode – with raw data capture, pulse generator, connection statistics, histograms and extended views. In everyday use, the software remains deliberately clean.
❓ FAQ & More Information
More information & FAQ → WiFENIX info page🤝 Part of the Community:
WiFENIX was born from the Renault youngtimer scene for the scene – the result of years of collaboration between Berlin and Argentina: electronics, firmware and software by Victor Preatoni, design, manufacturing, assembly, testing and support by French Youngtimer Parts in Berlin. Developed, tested and assembled by people who drive these cars themselves.
👉 keep legends young.
