19/09/2026
Mercedes-Benz ML 320 CDI (OM642) | Stage 1 ECU Calibration 📈
When it comes to tuning heavy SUVs, torque is everything. This 2008 Mercedes-Benz ML 320 CDI, powered by the legendary 3.0L V6 OM642 turbo diesel engine, rolled onto the dyno for a custom Stage 1 calibration to wake up its performance.
On the baseline run, the heavy ML put down a very healthy 221 HP and 508 Nm on the stock software, tracking almost perfectly with Mercedes' factory claims of 224 HP and 510 Nm. While 500+ Nm is decent, the 3.0L V6 has a massive amount of headroom hidden within the factory ECU mapping.
We dialed in a custom Stage 1 calibration, safely optimizing the boost delivery, injection timing, and fuel rail pressure. The result is a staggering 278 HP and 671 Nm 🔥! That is a massive gain of +163 Nm of torque over the baseline. For a heavy 4x4, this extra pulling power completely transforms the driving experience—delivering effortless highway overtaking, eliminating sluggish throttle response, and making towing a breeze.
Calibration Details:
✅️ Platform: 2008 Mercedes-Benz ML 320 CDI (3.0L V6 Diesel)
✅️ Factory Claim: 224 HP / 510 Nm
✅️ Measured Baseline: 221 HP / 508 Nm
✅️ Stage 1 ECU Calibration: 278 HP / 671 Nm 🔥
✅️ Total Gains: +57 HP / +163 Nm over baseline 🚀
✅️ Real-World Benefit: Effortless overtaking and significantly improved towing capacity for the heavy chassis
Turn up the volume and watch this ML put the power down in the video below 🔊🎥.
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