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Valtteri Bottas

Bottas to use fifth engine at Mexico City GP, beyond 2026 limit

Archive photograph: Valtteri Bottas · 2026-03-01Archive photo · 2026-03-01 · Yu Chu Chin · CC BY-SA 4.0

Jo Bauer’s report also lists a fifth turbocharger and fourth units for the MGU-K, energy store and control electronics, all beyond their 2026 allowances.

GPBeat · Newsroom01 Nov 2026, 15:34 · 1 min

Valtteri Bottas will use his fifth internal combustion engine (ICE) of the 2026 season at the Mexico City Grand Prix, one more than the four allowed. In a report to the stewards dated 30 October, FIA Formula 1 technical delegate Jo Bauer said the engine did not comply with provision B8.2.2(a) of the 2026 Sporting Regulations.

The report also lists a fifth turbocharger, above the four permitted. Bottas will also use his fourth MGU-K, fourth energy store unit (ES) and fourth control electronics unit (PU-CE); three of each are allowed. Bauer said those four components also did not comply with their corresponding provisions.

Sources 01
  1. PRIMARY SOURCEDoc 14 - New PU Elements for this CompetitionFIA F1 decision documents

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