TunedMercedes M139 Tune
$2,500.00
⚡ Experience refined performance — effortless power, factory smoothness, TunedMercedes precision.
Description
Wake Up the M139
The AMG 2.0L has plenty left on the table. This calibration tightens torque management, optimizes boost/load, refines throttle mapping, and coordinates better with shifting logic so more of the power reaches the ground—without sacrificing daily reliability.
Expected Output
The M139 easily tunes to 420 HP and 400 TQ (500 nm) in a stage one tune calibration and 462 HP with 442 TQ on a stage 2 car with mods such as air intakes, another 40 HP with 400 cell metallic cats, and an additional 20-50 HP with ethanol blend fuel mix.
Select Your Model Year
Why we ask: software variants and flashing paths differ by year. Choosing the correct Model Year (MY) helps us prepare the right file and instructions.
- MY 2019–2020 — earlier software families
- MY 2021–2022 — mid-cycle updates
- MY 2023+ — latest strategies; we’ll confirm details from your VIN
Add your VIN in Order Notes and we’ll double-check compatibility before we flash.
What You’ll Notice
- Earlier, stronger torque with cleaner delivery through the mid-range
- Faster tip-in and more predictable throttle (less “soft” feel)
- Better ECU ↔ shift coordination so upshifts stay clean at higher load
- Adaptation settles over a few drives; most gains are immediate
Choose Your Fuel & Stage
| Package | Hardware | Fuel | Notes |
|---|---|---|---|
| Stage 1 — 91/93 | Stock hardware | 91 or 93 AKI | Daily-friendly; big mid-range delta. |
| Stage 1 — E30 Blend | Stock hardware | E30 (approx.) | Extra knock headroom; strongest response on stock parts. |
| Stage 2 — 93 | High-flow downpipe | 93 AKI | Lower backpressure; better top-end repeatability. |
| Stage 2 — E30 | Downpipe | E30 (approx.) | Peak street setup for stock turbo; excellent mid-to-top. |
Results vary with health, altitude, fuel quality, temps, and drivetrain. If you track/dyno, we’ll review logs and tailor as needed.
What’s Included
- Custom ECU calibration for your fuel/hardware
- Remote OBD flash (Windows laptop + stable internet)
- Data review & one revision window
- Return-to-stock file on request
How It Works
- Prep: Confirm model year, software variant, fuel, and hardware.
- Read: Connect interface; we remote in and read your file.
- Tune: We build the calibration for your goals.
- Flash & Drive: We write the file and guide first-drive checks; adaptation continues as you put miles on it.
Fitment
M139 2.0L turbo AMG applications (e.g., AMG “45” series using this engine family). Unsure? Add your VIN in Order Notes and we’ll confirm before flashing.
Recommended Supporting Mods
- High-quality 91/93 or correctly mixed E-blend
- Fresh one-step-colder plugs if higher mileage
- Intercooler/heat management upgrades for hot climates
- Intake/inlet and downpipe for Stage 2 paths
FAQ
91 vs 93 vs E30?
We offer safe 91 and stronger 93 files. E30 provides additional knock margin for the best response on stock hardware.
Dealer visits / warranty?
Tuning may affect warranty. Many customers flash back to stock prior to service; we provide return-to-stock support.
Readiness / emissions?
We do not provide emissions defeat. On compliant hardware, street files retain normal readiness behavior.
Policies & Notes
No emissions defeat is provided or implied. Tuning can affect drivetrain wear and dealer warranty. Our liability is limited to the transaction amount.
Later Models Require ECU Unlock
If you have a 2022+ the reason for the additional cost is there is an additional step and process and cost incurred to unlock the 2022+ ECU.
The TCU and CPC Still Hold the Car Back
The TCU can request decrease in torque and will hold the car back unless also tuned. The CPC on 2018+ 9 speed can also decrease torque, timing, revs, and top speed and you may also wish to tune this for a pure driving experience.
Additional information
| Year | 2016-2022, 2022-2024 |
|---|---|
| Stage | Stage 1 | Stage 2 | Stage 3 |
| Platform | A | GLA | SL | GT | Emira | C |
| Method | Remote | Bench |
| Engine Family | M139 |
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