Honda says fixes for Aston Martin's 2026 power‑unit woes will take time

Aston Martin's 2026 season is off to a disastrous start, with zero points after three races and a power‑unit problem that’s shaking drivers’ hands and blowing batteries. Honda says its engineers are in Tokyo‑area R&D centre working around the clock, but an immediate fix before the Miami Grand Prix is unlikely.

Why it matters:

• The power‑unit issue threatens the team's ability to score points and meet the new cost‑saving battery limits.
• Driver safety is at risk as extreme vibrations cause battery failures and could lead to nerve damage.
• Honda’s reputation as a supplier hangs in the balance, putting the Aston Martin partnership under scrutiny.

The details:

• Vibrations from the Honda power unit exceed dyno‑test levels, breaking the rigid link between engine, gearbox and MGU‑K, which ruptures the battery.
• At the Australian GP Honda arrived with only four batteries; two failed within the first hour of practice, leaving the cars short of the two‑battery‑per‑season cap.
• Both Honda and Aston Martin acknowledge that chassis integration and design changes are required, not just a software fix.
• Shintaro Orihara, HRC’s trackside GM, said teams have been at the Sakura R&D centre since the Japanese GP, working “around the clock” on counter‑measures.

What's next:

• The next test will be at the Miami Grand Prix, where the teams hope to field a more stable power‑unit package, even if performance is compromised.
• Honda expects incremental updates rather than a full cure, meaning the team may continue to run with limited power and reliability through the early season.
• Long‑term, the partnership will likely redesign the engine‑chassis interface to comply with the two‑battery rule and eliminate harmful vibrations.