Mercedes prepares ADUO as reliability crisis deepensMercedes is reportedly preparing an upgraded ADUO power unit for Monza as reliability problems and renewed performance pressure threaten its strong start to the 2026 season. FIA found Red Bull-Ford to possess the strongest internal combustion engine, although the legality and application of ADUO remains contentious. Ferrari is also reportedly preparing an ADUO upgrade along with a new low-downforce rear wing for Monza. Sky Deutschland pundit Ralf Schumacher says Mercedes can no longer afford to delay its next major upgrade. Wolff remains hopeful Mercedes can avoid penalties by returning to previously used components, but acknowledged Monza may become the logical place to introduce another engine.