During a check on this BMW X3, the engine reached around 4,550 rpm when the accelerator was pressed while the car was stationary. The video states that the expected maximum for this test was approximately 4,000–4,100 rpm, and the discrepancy prevented a smoke measurement from being carried out.

The engine control unit calibration was adjusted so the stationary rev limit would fall within the required range. After the updated software was written, a repeat check showed the engine reaching approximately 4,000 rpm.

The aim was to correct the rev limit, not to increase engine power. The video does not show a dyno test or an official technical inspection result after the adjustment, so neither should be treated as confirmed.