FIA clamps down on Mercedes and Red Bull's qualifying 'trick'

The FIA has moved to close a regulatory loophole that allowed Mercedes and Red Bull to gain a marginal performance advantage during qualifying sessions. The 'trick', which involved a brief bypass of mandated power unit energy deployment limits, was highlighted to the governing body by rivals Ferrari and existed in a grey area of the technical regulations. While the time gain was reportedly minimal—potentially only hundredths of a second—and Mercedes had already stopped using it, the FIA has issued a formal clarification to all teams banning its systematic use for performance gains.

Why it matters:

This intervention underscores the intense, detail-oriented competition in Formula 1, where teams relentlessly search for even the smallest advantages within the complex rulebook. While the immediate performance impact was negligible, the FIA's proactive step prevents a potential 'arms race' where multiple teams could begin exploiting the same loophole, which was intended for genuine component protection, not lap time gains. It reinforces the principle that performance must come from innovation within the clear spirit of the regulations, not from exploiting ambiguities.

The details:

• The workaround centered on the MGU-K (Motor Generator Unit - Kinetic) and a specific software function in the car's SECU (Standard Electronic Control Unit).
• Regulations require a reduction in energy deployment from the MGU-K along the final straight before the finish line. However, a clause allows teams to bypass this reduction if the MGU-K is deactivated for a genuine technical or safety emergency.
• Teams found they could briefly trigger this 'emergency' mode to maintain full power deployment in qualifying, as the subsequent rule requiring the MGU-K to remain inactive for 60 seconds had no practical consequence in a single-lap session.
• Ferrari brought the tactic to the FIA's attention after observing its use. The governing body has since clarified in writing that the 'continuous offset' software function is strictly for its original purpose—managing real component emergencies—and not as a systematic tool for improving qualifying performance.

What's next:

With the formal directive issued, teams are now explicitly prohibited from using this method in qualifying. The episode is a classic example of F1's technical cat-and-mouse game, where the FIA must constantly monitor and clarify regulations as teams push boundaries.

• The focus now returns to pure car development, with no further advantage to be gained from this particular loophole.
• This swift action likely prevents similar exploits from emerging elsewhere in the power unit software, maintaining a focus on fair competition based on engineering merit rather than regulatory interpretation.