AutoTuner Update: Unlocks 2025 Audi RS3 8Y MG1CS164

 VAG Bosch MG1CS164 (2.5 TFSI): Live on Bench!

Get ready to make one of the most iconic engines in automotive history sing! We are extremely proud to announce official support for the Bosch MG1CS164 ECU on your AutoTuner Tool.

This exclusive protocol grants you access to the mythical 2.5 TFSI (5-cylinder) engine powering the absolute latest beasts from the VAG group: the new Audi RS3 8Y facelift (2025) and the exclusive Cupra Formentor VZ5 (2026). You now have the ultimate solution to deliver monumental power gains to these ultra-sporty vehicles and push the limits of this fabulous engine block.

Exclusive Coverage:
Audi: RS3 8Y facelift (2025)
Cupra: Formentor VZ5 (2026)

Method: Bench (After Mail-in Unlock). Send Autotuner the ECU for a highly secure unlock.
Once returned, confidently read and flash this solution via Bench right in your shop!

Key Features:
Type: Engine Control Unit (ECU)
Mode: BENCH NR
MCU: TC387
Read time: 2min
Write time: 1min
Checksums correction
Backup creation function
Mail-in Unlock required

Compatibility List*:
Audi Model: RS3 8Y facelift (2025)
Audi Engine: 2.5 TFSI
Cupra Model: Formentor VZ5 (2026)

Cupra Engine: 2.5 TFSI


Autotuner Update 2025 2026 VAG MG1CS164 ECU Mail-in Unlocking

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