Mercedes prepares ADUO as reliability crisis deepens

Mercedes is facing a reliability crisis as it prepares an upgraded ADUO power unit for the upcoming Monza GP. The team has made changes to key components of the power unit, but championship leader Kimi Antonelli will face a grid penalty due to exceeding the allowed number of engines. Meanwhile, Red Bull is in discussions with the FIA regarding the legality of their engine, and Ferrari is also set to introduce upgrades at Monza.

Toto Wolff has expressed concerns about the team's budget and the urgency of implementing upgrades, especially given the reliability issues faced by both Antonelli and George Russell this season. Wolff is considering the possibility of using previously utilized components to mitigate penalties, while emphasizing the need for improvements in performance and reliability as the season progresses.