Doc 89 - Infringement - Car 18 - PU Elements changed under Parc Ferme

Lance Stroll (Car 18) required to start the race from the pit lane due to unapproved Power Unit element changes under parc fermé conditions.

Lance Stroll's Aston Martin team replaced his 4th Energy Store (ES) and 4th Control Electronics Unit (PU-CE) during parc fermé without prior approval from the FIA Technical Delegate. This violates B8.2.2 (read with B8.2.3) and B3.5.3 of the FIA F1 Regulations. Normally, such changes incur a grid drop, but because approval was not sought, the penalty escalates to a mandatory pit lane start under B3.5.3. The decision emphasizes strict adherence to technical delegation protocols during restricted periods like parc fermé.