This Mercedes-Benz came in for testing because the owner suspected it had already been tuned. Dyno runs made it possible to compare three setups: the file found in the car, the original software and an AutoChip-developed Stage 1 calibration.

Previous file and original software

With the previous file, the dyno recorded 130 hp and 263 Nm. After restoring the original software, it recorded 125 hp and 266 Nm. The previous file therefore added only a small amount of power, while torque was slightly lower than with the original calibration.

AutoChip Stage 1 results

The first run after the AutoChip calibration produced 145.5 hp and 339.3 Nm. A repeat run recorded 144.8 hp and 335.3 Nm. Compared with the original-software run, that is approximately 20 hp and 69–73 Nm more.

Data logs and engine protection

During calibration, the team reviewed data logs and engine operating parameters, including turbocharger operation, temperatures and pressures. The technician said the temperature limiters were left in place. The two repeat runs produced similar power and torque figures.

In this case, the dyno provided a direct comparison between the previous file, the original software and the new Stage 1 calibration on the same vehicle. The video does not identify the Mercedes model, year or engine code.