Mercedes’ 2026 engine lead in doubt after start‑up glitch rumor

Rumors have surfaced that Mercedes’ 2026 power unit may struggle to start, a glitch flagged by former driver Johnny Herbert. The team, long‑favoured to dominate the upcoming regulation shift, could see its advantage evaporate if the issue proves real.

Why it matters:

• Mercedes is the front‑runner for 2026; a start‑up fault could erode its edge and reshuffle the title fight.
• Reliability problems would hit George Russell directly, whose consistency is key to Mercedes’ comeback.
• Early engine issues often cascade, forcing redesigns that compromise chassis and aerodynamic development.

The details:

• Herbert says he heard of units that won’t fire when fitted to the car’s rear, hinting at a basic start‑up glitch.
• Mercedes HPPT has stayed silent, with teams “keeping heads down” while testing new components under the new rules.
• The problem emerges as all teams are fixing “little problems” from the 2026 hybrid and aero overhaul, as Russell and rookie Kimi Antonelli gear up.

What's next:

• Mercedes aims to begin on‑track testing of the 2026 unit later this year; any start‑up faults will be addressed before the season launch.
• Pre‑season testing will reveal whether the “Silver Arrows” can deliver a reliable power unit and stay on the front row of the championship.
• If the glitch isn’t resolved, Mercedes could lose its front‑row advantage, handing the championship race to rivals.