FIA Bans Mercedes and Red Bull's MGU-K Qualifying Trick
The FIA has introduced a new regulation banning the deliberate shutdown of the MGU-K system during qualifying to gain a temporary power boost, a tactic used by Mercedes and Red Bull at the Japanese Grand Prix.
Key Points
- FIA bans deliberate MGU-K shutdown during qualifying to gain a power boost.
- Tactic used by Mercedes and Red Bull at Japanese GP for 50-100 kW advantage.
- Ferrari had appealed for clarification after the Japanese Grand Prix.
- New regulation aims to ensure competitive fairness in qualifying.
Full Details
On April 14, 2026, the FIA introduced a special regulation to prohibit the strategy of deliberately shutting down the MGU-K system during qualifying sessions. This tactic, employed by Mercedes, Red Bull, and their customer teams at the Japanese Grand Prix, resulted in an immediate power loss followed by a short-term gain of 50-100 kW compared to rivals. Ferrari had previously appealed to the FIA for an explanation after observing this specific engine mode being used. The new ban aims to ensure a level playing field and prevent teams from exploiting emergency modes for a qualifying advantage. This decision directly impacts the competitive balance ahead of the Miami Grand Prix.
Why It Matters
This ban could significantly alter qualifying strategies for top teams, potentially reshaping the grid order and forcing engineers to develop new approaches for lap-time optimization.
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