Technical Delegate's Report

Document 46 | Date: 04 October 2026

The following parts and parameters have been replaced / changed during the Parc Fermé yesterday and today:

McLaren Mercedes

• Car 81: Driver's cockpit windshield
• Car 01: Driver's cockpit windshield

Ferrari

• Car 44: Low pressure fuel pump

Atlassian Williams Mercedes

• Car 23:
  • LHS front wing flap adjuster mechanism
  • LHS rear view mirror lens
• Car 55:
  • Forward floor stay shroud
  • Forward floor stay beam cover
  • RHS brake drum duct and associated cover

Aston Martin Aramco Honda

• Car 18:
  • Forward chassis puck
  • RHS mirror glass

Audi

• Car 05:
  • LHS rear view mirror lens
  • Gearbox assembly including control hydraulics
  • LHS and RHS rear suspension assemblies
  • Parameter changes associated with the gearbox assembly replacement

Cadillac Ferrari

• Car 11:
  • LHS rear tyre temperature sensor lens cover
  • Slip angle sensor lens cover
• Car 77:
  • LHS rear tyre temperature sensor lens cover
  • Track temperature sensor lens cover

All above listed parts have been replaced with the approval of the FIA technical delegate following a written request from the team concerned, this being in accordance with Article B3.5.4 of the 2026 Formula One Sporting Regulations.

Jo Bauer The FIA Formula 1 Technical Delegate