Russell: Mercedes Found Power Unit Calibration Issue Behind Recent F1 Struggles

George Russell says he and Mercedes have traced his recent Formula 1 struggles to a power unit calibration issue, ending the need to fundamentally alter his driving. The Briton explained that incorrect data led the team to believe he needed to adapt his style, but analysis from the Belgian Grand Prix exposed the true culprit.

Why it matters:

Russell endured a nightmare weekend at Spa-Francorchamps, qualifying half a second behind team-mate Kimi Antonelli before colliding with Lewis Hamilton at Turn 5 after a battery depletion issue on the Kemmel Straight. The discovery lifts a mental burden, as Russell had spent recent rounds modifying his throttle inputs to match Antonelli, only to learn the gap stemmed from software rather than technique.

The details:

• Russell said "numbers on the screen were not quite calibrated properly," meaning the power unit was not deploying energy optimally across the lap, a problem Oscar Piastri also encountered.
• The miscalibration masked the hardware's true performance, leading Mercedes to incorrectly conclude that Russell's driving style was the issue.
• At Spa, he ran out of battery approaching Les Combes, contributing to contact with Hamilton after struggling with state-of-charge management.
• He admitted he spent sessions at Silverstone and Spa re-optimizing his technique to compensate for a power unit that was never delivering its full potential.

What's next:

Russell heads to Hungary saying he can now "focus on the simple things" and drive naturally without overthinking power unit management. With Mercedes recalibrating the systems to unlock full potential, he believes the unnecessary tinkering is over and he can concentrate purely on raw pace.