Mercedes Prepares Major F1 Power Unit Upgrade Amid Reliability Concerns

Despite leading both Formula 1 World Championship standings, Mercedes continues to face reliability concerns with its power unit. The primary issues have been linked to the electrical systems, particularly the energy store and control electronics, which have contributed to several technical failures throughout the season.According to reports from the Italian media, Mercedes engineers have been developing an upgraded energy store for several months. The revised component is expected to make its debut at the Italian Grand Prix in Monza, even if its introduction results in grid penalties for George Russell and Kimi Antonelli due to exceeding the permitted allocation of power unit components.Mercedes is also reportedly considering replacing additional power unit elements at the same time to improve reliability ahead of a series of circuits where engine performance will be particularly important. Meanwhile, Ferrari is expected to introduce an updated power unit at its home race in Monza, although the Italian team is not anticipated to incur any grid penalties as the change is expected to fall within its allocated component usage.