Autotuner One Personal Tuning Device

Autotuner One is a personal-use ECU and TCU tuning device that puts professional tuning within reach, with no workshop visit, no laptop and no complex setup required.

Designed for non-professional users, Autotuner One plugs directly into your vehicle’s OBD port and is operated using the official Autotuner app, available on iOS and Android. The app guides you through reading the vehicle software, securely submitting it to VIEZU’s tuning team and downloading your custom tuning file when it’s ready.

It’s the same high-quality remap service used by VIEZU’s global network of tuners – now made accessible at home, with the confidence of built-in file security, ECU identification, and checksum validation. Whether you’re aiming to improve responsiveness, torque, or fuel efficiency, Autotuner One gives you direct control over your remap – supported by our expert team every step of the way.

VAG ECU and TCU tuning with Autotuner One

Autotuner One supports selected VAG gearbox tuning applications, allowing compatible Audi, Volkswagen, SEAT, Škoda, Cupra and Porsche owners to tune both the engine ECU and gearbox TCU using the same personal tuning device.

ECU tuning can improve power, torque and response, while TCU tuning helps the gearbox make better use of that performance. For many VAG vehicles, combining ECU and TCU tuning gives a more complete result than engine tuning alone.

Supported VAG gearbox families currently include DQ200, DQ250, DQ381, DQ500, DL382 and DL501. Compatibility depends on the exact vehicle, gearbox, ECU and software version, so please contact VIEZU before ordering.

Key Features:

• Fully app-based remapping device (no laptop required)

• Works via your vehicle’s OBD port

• ECU tuning for compatible petrol and diesel vehicles

• Selected TCU tuning now available for supported VAG models

• Secure cloud upload and download of tuning files

• Custom tuning files written by VIEZU’s in-house calibration specialists

• Ability to use multiple tuning file options where available

• Includes original file backup and restore functions

• Built-in ECU and TCU identification features, where supported

• Simple step-by-step interface for safe use at home

Compatible Vehicle Makes Include:

Audi, BMW, Citroën, Dacia, Fiat, Ford, Jaguar, Land Rover, Mercedes-Benz, Mini, Nissan, Opel/Vauxhall, Peugeot, Porsche, Renault, Seat, Škoda, Toyota, Volkswagen, Volvo – and more.

TCU compatibility

Selected TCU tuning is also available for supported VAG applications, including certain Audi, Volkswagen, SEAT, Škoda, Cupra and Porsche models.

VAG TCU support currently includes selected DQ200, DQ250, DQ381, DQ500, DL382 and DL501 gearbox applications. The supported vehicle list may evolve over time, so compatibility must be checked before purchase.

Whether you’re a keen enthusiast or simply want more from your everyday car, Autotuner One lets you take control of your vehicle’s performance safely and conveniently – all from your smartphone.

Please check before purchase:
Compatibility depends on your vehicle’s make, model, and ECU. Contact our team to confirm support.

Choose your tuning files

Autotuner One can be used with multiple tuning file options where available, including your original file and selected VIEZU tuning calibrations. This gives you the flexibility to return the vehicle to standard, load an ECU tune, apply a supported TCU tune, or choose from available tuning options using the Autotuner app, without the need to visit a professional tuner. You can do it all on your own drive way.

• CLASSICME – A very handy reset facility allows you to revert to the original vehicle factory settings whenever you need.
• ECOME – GET MORE MILES WITH LESS FUEL* Up to 20% fuel saving is achievable (*available on diesel engines only). Viezu’s Award-Winning BlueOptimize Fuel Saving Technology is installed on some of the UK’s largest fleets. Now it’s available to you.
• FUSIONME – BEST OF ALL WORLDS; Get more miles with less fuel and yes, more bhp. This DRIVE Setting is only available for diesel or diesel hybrid engines.
• EXCITEME – A thoroughly exhilarating performance DRIVE SETTING designed to unlock the full potential of your motor. Bhp and torque are upgrade, yielding a smoother and significantly faster drive. A more responsive throttle delivers a completely breath-taking driving experience. You just need to try this – words are not enough!
• THRILLME – PURE ADRENALINE! – Track Day Drivers! This is a fun DRIVE Setting. *It’s not for everyday use and if you are taking your car onto a track, make sure you have the appropriate insurance! OK – Small print and nanny-state commentary over; you are going to love this one!
• PARKME – VALET MODE – this DRIVE Setting is suitable only for low speeds and slow vehicle manoeuvres. It’s great if your motor is in the hands of others. Switch to this valet mode to protect your motor.
• BURBLEME – Sound and Tone enhancement using My Genius with or without the addition of Performance Exhaust system. Standard Exhaust System? Burble Activation, on a standard exhaust system, will provide the effect the name suggests, a burbling sound on the overrun. Performance Exhaust System? The sporty, aggressive sound of the burbles is further amplified, creating a deeper, more pronounced exhaust note when the engine goes into overrun strategy. Fitting a high-quality performance exhaust in combination with Burbles Activation, the burbles become, well, more burbley – Pops and Bangs are for off-road & Motorsport Use Only.
• POPBANG & STEALTH MODE – Two options to select from with Pop & Bang, and Stealth Mode*, can you guess what they are? Pop and Bang (anti-lag) Tune | Stealth Mode – quiet yet enhanced performance!  Perfectly sociable tuning: have your Pops and Bangs on your car and keep it stealth when needed! Use the Autotuner One Personal Home Tuning Device to manage your Pops and Bangs Tuning. Protect your engine within Stealth Mode and keep your neighbours happy! See, perfectly sociable. *Pop Bang and Stealth Mode Package is available only on 2ltr and below engines – For Pops, Bangs on a larger engine, please contact The Viezu Technical Team for guidance on pricing and options. *Pops and Bangs are for off-road & Motorsport Use Only.

All tuning files are developed by VIEZU’s in-house calibration specialists, with compatibility checked before files are supplied.

Frequently asked questions

Can Autotuner One tune both the ECU and TCU?
Yes, on supported vehicles. Autotuner One supports ECU tuning for compatible vehicles, and selected TCU tuning is now available for supported VAG models.

Does VAG TCU tuning work through the OBD port?
The new VAG TCU release for Autotuner One is listed by Autotuner as 100% OBD for supported applications.

Can I use more than one tuning file?
Yes, multiple tuning file options may be available depending on the vehicle and package selected. Your original file can also be retained for restore use.

Who writes the tuning files?
VIEZU’s in-house calibration specialists write the tuning files supplied with Autotuner One.

Do I need to check compatibility first?
Yes. Vehicle support depends on make, model, engine, gearbox and software version. Please contact VIEZU before ordering.