This BMW E61 with a 3.0-litre diesel engine came in for an inspection and ECU calibration update. Exhaust system changes had already been made elsewhere, and the work included revising the control unit software and increasing power.

After programming, the first dynamometer run recorded 309 hp and 670 Nm. A repeat run produced 308 hp and 669 Nm. The small difference between the two measurements is expected and shows that the result repeated within a similar range.

The video shows the measurements with a manual transmission and the vehicle check after the software changes. The 218 hp and 500 Nm listed in the title refer to the standard version, not to this car's initial dyno measurement.