Mercedes has confirmed the cause of the technical issue that forced George Russell to park his W17 immediately after the end of Q3 in Hungary, as the Briton is set to start Sunday's race from seventh on the grid. Speaking to GPblog among other media after qualifying, Russell revealed that a water leak compromised his final Q3 lap after he hit a bump at Turn 4. The Mercedes driver explained that the issue caused water to spray onto the rear tyres, rapidly dropping their temperature and costing him performance. While he admitted a place in the top three was never realistic, Russell believed the problem likely cost him a few positions on the grid.
"We had a water leak. I hit a bump at Turn 4. The lap was feeling good until then, and then suddenly the lap wasn't. So I didn't think much of it. The team told me the water was spraying over my tyres because as soon as we saw it in the data, the water leak, suddenly my tyre temperatures got really cold on the rear. I don't think much more. Top three, definitely not possible, but maybe a few positions higher would have been."
Asked whether he was concerned about the engine's reliability following the issue in qualifying, Russell admitted it is still too early to draw any conclusions: "I think it's okay at the moment, but until we see it, we'll either be okay or we won't. We'll find that out this evening."
Following additional checks carried out after qualifying, Mercedes decided to fit Russell's car with a fresh power unit for Sunday's race. As it is his fourth engine of the season, the change remains within the permitted allocation. Since the replacement involves a damaged component being swapped for another of the same specification, Russell will not receive a grid penalty.
Antonelli faces stewards investigation after Hungarian GP qualifying
Mercedes' qualifying took another twist after the chequered flag, as
Kimi Antonelli came under investigation for an alleged yellow-flag infringement after securing a fourth place on the grid.
The investigation stems from Max Verstappen's spin at the final corner during his last Q3 run, an incident that brought out yellow flags and forced George Russell to abandon his final flying lap.
Antonelli nevertheless found more time on the same lap, securing fourth on the grid behind polesitter Lando Norris and Ferrari pair Lewis Hamilton and Charles Leclerc.