This 2007 BMW E61 has a 2.0-litre diesel engine and an EDC16C35 control unit. It arrived after tuning at another workshop because the driver felt the car accelerating unevenly. The dyno curves showed fluctuations in power and torque with the previous calibration.

The earlier file had recorded 210 hp and 439 Nm. After reviewing it, a corrected calibration was prepared and loaded, followed by another check of the engine parameters. The dyno run was performed in fifth gear with the six-speed manual transmission.

After correction, the dyno recorded 218 hp and 445–446 Nm, with smoother curves. This is a comparison with the previous modified file, not with the factory software. The car accelerated without the earlier fluctuations during the follow-up check.