Overview
- Mercedes confirmed George Russell’s late power‑unit retirement in Sepang was a mechanical failure and will fit a replacement that takes him past his allotted engines and triggers a back‑of‑the‑grid penalty for the Singapore Grand Prix.
- The setback leaves Russell 84 points adrift of teammate Kimi Antonelli and sharply weakens his title challenge with seven rounds remaining.
- Mercedes has opened an internal investigation into the power‑unit fault, is weighing whether to bring forward an ADUO upgrade originally planned for Austin, and describes the root cause as still under examination.
- To diagnose why its W17 upgrade lost performance in Malaysia, Mercedes will run a split‑spec on‑track comparison in Singapore that uses the old aero package on one car and the new package on the other.
- The FIA found a wet‑condition software interaction caused power losses at Sepang, has issued an emergency wet‑software configuration to be used if Singapore is wet, and plans further software updates and stronger validation before the United States Grand Prix.