Mail-In ECU Unlock Service

Bosch MDG1 (2020+ BMW / MINI / Supra / Mercedes / Lotus / Range Rover)

Unlock the full potential of your 2020+ vehicle equipped with the Bosch MDG1 ECU.

Modern MDG1 ECUs are factory-locked and cannot be tuned through OBD. Our professional unlock service removes these restrictions, giving you full read and write access for complete tuning freedom.

No subscriptions.
No hidden fees.
No platform lock-in.
Just full control of your ECU.

What This Unlock Provides

• Full bench unlock of Bosch MDG1 ECU
• Complete read & write capability
• Freedom to tune with your preferred platform
• Supports Stage 1, Stage 2, flex fuel, burble tuning, ethanol setups, and custom calibrations
• One-time unlock — no recurring costs

Once unlocked, your ECU is ready for professional performance tuning.

How the Service Works

Mail-In Unlock – USA Facility

• We provide a prepaid shipping label
• You remove the ECU and ship it to our USA unlock facility
• OR have a local dealer remove and ship the ECU on your behalf

Fast shipping to our USA location.
Same-day turnaround once received.
The ECU is shipped back to you directly after unlocking.

This service is handled through our USA facility for speed and efficiency — not our Canada location.

Supported Applications (2020+ Bosch MDG1)

BMW / MINI / Toyota Supra

B48, B58, S58, N63, S63 (2020+)

Mercedes-Benz (2020+)

M260, M264, M256, M177, M178 and other MDG1-equipped engines

Lotus (2020+)

Emira and other MDG1 applications

Select Range Rover / Land Rover (2020+)

Not sure if your vehicle has an MDG1 ECU?
Send us your VIN and build date and we’ll confirm for you.

Important Notes

• ECU removal is required
• Applies only to Bosch MDG1 ECUs
• Vehicle must be in proper mechanical condition
• Professional tuning recommended

Unlock your MDG1 ECU the right way and gain full tuning freedom.

Contact Custom Tunez to start your unlock process today.