Doc 54 - Parts and Parameters been replaced and or changed during Parc Fermé
Technical/Scrutineering
Technical Delegate's Report
The following parts and parameters have been replaced or changed during the Parc Fermé yesterday and today (28-29 March 2026):
| Team | Car | Replaced Parts / Parameters |
|---|---|---|
| Mercedes | 63 | LHS bib mounting bracket, Fire extinguisher |
| Ferrari | 44 | Fuel filter |
| Williams | 23 | LCU antenna, PAS rack assembly |
| 55 | Hydraulic power pack, Parameter changes associated with replacement | |
| Racing Bulls | 41 | LHS and RHS rear brake duct mounting brackets |
| 30 | LHS and RHS rear brake duct mounting brackets | |
| Aston Martin | 18 | LHS rear brake duct barrel assembly |
| Audi | 27 | Clutch basket O-rings, Hydraulic heat exchanger PRV |
| 05 | Clutch basket O-rings, Clutch backup seal | |
| Cadillac Ferrari | 11 | Brake master cylinder bellows/cap, Fuel filter |
| 77 | Fuel filter |
Note: All above parts have been replaced with the approval of the FIA technical delegate following a written request from the team concerned, in accordance with Article B3.5.4 of the 2026 Formula One Sporting Regulations.
Jo Bauer
FIA Formula One Technical Delegate