The Vito W447 is the go-to compact van for tradespeople, airport transfer operators and camper-van converters. The OM654 is a refined engine with a cautious factory calibration; a custom map improves mid-range pull for loaded city driving and reduces fuel consumption on high-kilometre weekly runs.
The 2 L 4-cylinder in the Mercedes-Benz Vito is a performance diesel — high injection pressure, a variable-geometry or twin turbocharger, and a tight calibration that was set for global emissions targets rather than for what the engine can actually sustain. That's the gap a custom dyno-developed map closes: not more hardware, just a calibration that matches the engine's real capability.
Our dyno-developed map for the Mercedes-Benz Vito adds an average of 24 kW (25%) at the wheels and 95 Nm (25%) of engine torque. At this level the car genuinely changes character — overtaking on single-lane highways stops being a commitment, and the mid-range pull from around 1,500 to 3,000 rpm is transformed. You notice it most on the highway on-ramp and in the first third of an overtake.
In practical terms, that works out to around 7 fewer tanks of diesel over 40,000 km. At a typical 15,000 km annual mileage, most Mercedes-Benz Vito owners save roughly 176 L and $316 per year at the pump — purely from improved combustion efficiency at part-throttle, where diesels spend most of their time.
This Mercedes-Benz Vito variant ran from 2015–2025 — long enough that the factory calibration was revised more than once during that run. Before we flash anything, we identify the exact year and ECU revision, read and back up the original file, and then apply the map built for that specific version.
Mercedes-Benz OM654
The OM654 (post-2016, 2.0 inline-four) is one of the cleanest, smoothest diesels on sale. We hold our tunes conservatively here — there is calibration headroom, but the factory map is already very close to the engine's sweet spot.