New AT Protocol!
Dear Users,
This is an essential update targeting the absolute core of the modern automotive market! We are thrilled to announce that Bosch MG1CS211 ECUs are now officially supported on your AT Tool.
This protocol unlocks tuning capabilities for a massive fleet of hybrid and mild-hybrid powertrains, spanning from the popular 1.4 TSI e-HYBRID / GTE generation up to the absolute latest 1.5 eTSI (MHEV) and 1.5 TSI eHybrid configurations (2019 to 2026 models). Crucially, this release also encompasses multi-purpose vehicles from the VAG-Ford alliance, including the VW Caddy and Ford Tourneo Connect 1.5 eTSI!
🔒 A highly secure workflow (Mail-in ➡️ Bench): To safely bypass the sophisticated factory security layers on these modern electrified configurations, a seamless two-step process is required:
Mail-in Unlock: The ECU must first be sent to our headquarters for a secure hardware unlock by our engineering team.
Bench: Once returned to your workshop, software locks are removed. You gain total Bench access to safely read and write your calibrations directly on your workbench.
Supported Highlights (1.4 & 1.5 TSI / eTSI / eHybrid / GTE Engines):
Volkswagen: Golf 8 (eTSI / GTE), Passat, Tiguan, T-Roc, Taigo, T-Cross, Caddy (1.5 eTSI), and the brand-new Tayron.
Ford (Shared platform): Tourneo Connect (1.5 eTSI).
Cupra & Seat: Formentor (e-HYBRID), Leon (eTSI), and the brand-new Terramar SUV.
Audi: A3 (TFSIe / MHEV), A5, Q3 (TSI eHybrid).
Skoda: Octavia, Superb, Kodiaq.
Update your software today and take ultimate control over Europe's highest volume hybrid tuning segment!
The AT Team
Key Features
- ⚙️ Type: Engine Control Unit (ECU)
- 🔌 Mode: BENCH NR
- 🖥️ MCU: TC387
- ⏱️ Read time: 2min
- ⏱️ Write time: 30sec
- ✅ Checksums correction
- 🔄 Backup creation
- 📦 Mail-in unlock needed
Compatibility List*
🚗 Audi Models: A3 (2019 - 2024) / A5 (2024) / Q3 (2018 - 2025)
🔧 Audi Engines: 40 TFSIe (1.4) / 45 TFSIe (1.4) / 1.5 TFSI MHEV / 1.5 TSI eHybrid
🚗 Cupra Models: Formentor (2020 - 2025) / Leon (2020 - 2024) / Terramar (2025)
🔧 Cupra Engines: 1.4 TSI e-HYBRID / 1.5 TSI eHybrid / 1.5 eTSI
🚗 Ford Model: Tourneo Connect (2021)
🔧 Ford Engine: 1.5 eTSI
🚗 Seat Models: Leon (2020) / Tarraco (2019)
🔧 Seat Engines: 1.4 TSI e-HYBRID / 1.4 TSI Hybrid / 1.5 eTSI
🚗 Skoda Models: Octavia (2020) / Superb (2019 - 2023) / Kodiaq (2023)
🔧 Skoda Engines: 1.4 TSI e-HYBRID / 1.4 TSI E-HYBRID / 1.5 eTSI / 1.5 TSI eHybrid
🚗 Volkswagen Models: Arteon (2020) / Golf (2020 - 2024) / Passat (2019 - 2023) / Tiguan (2021 - 2024) / Transporter / Multivan / Caravelle (2021) / Caddy (2021) / T-Cross (2023) / T-Roc (2025) / Taigo (2025) / Tayron (2025)
🔧 Volkswagen Engines: 1.4 TSI GTE / 1.4 TSI e-HYBRID / 1.4 TSI E-HYBRID / 1.5 eTSI / 1.5 TSI eHybrid / 1.5 TSI
*The list may evolve over time.
