George Russell will require a replacement power unit for the 2026 Hungarian Grand Prix after a heavy impact with the Turn 4 exit kerb caused a water leak during his final Q3 attempt. Mercedes confirmed that the damaged engine will be replaced before the race, although the British driver will avoid a grid penalty because the new unit remains within his seasonal allocation.
The failure added another frustrating technical setback to George Russell’s recent run. After a software issue slowed him at Spa, the Mercedes driver encountered further trouble during the closing stages of qualifying at the Hungaroring and was instructed to stop the car immediately after completing his final lap.
George Russell suffers water leak after Turn 4 kerb strike
“If something can go wrong, it will.” Murphy’s law has begun to sound like an unfortunate warning for George Russell at this stage of the season, with technical problems again affecting his qualifying performance in Hungary.
The incident occurred when George Russell ran heavily over the kerb at the exit of Turn 4 and reached its aggressive outer section. The triangular kerb is deliberately designed to discourage drivers from exceeding the track limits, and the impact triggered a water leak on the Mercedes.
According to George Russell, droplets of water may also have reached the rear tyres, lowering their operating temperatures and reducing the car’s overall grip. In any case, he would not have been able to improve his qualifying position because he aborted the lap at the final corner after encountering yellow flags caused by Max Verstappen’s spin.
“We had a water leak and I hit a bump at Turn 4,” George Russell explained after the session. “The lap was going well up to that point, and then suddenly it wasn’t. I didn’t think too much about it, and the team told me that water was getting onto the tyres. As soon as we saw the water loss in the data, the rear tyre temperatures suddenly dropped.”
The problem followed the deployment difficulties that affected George Russell in previous qualifying sessions, adding another complication to a weekend in which Mercedes had hoped for a cleaner performance.
Mercedes confirms George Russell engine change
A top-three starting position appeared to be beyond George Russell’s reach, but his objective was at least to qualify ahead of Max Verstappen and Oscar Piastri. The more serious consequence, however, was not his grid position.
Despite George Russell stopping the car immediately after finishing the lap, the water leak caused the engine to fail. Mercedes team principal Toto Wolff confirmed to Sky Sport Italia that the power unit would have to be replaced before the race.
George Russell has used three engines so far this season, meaning he still has a fresh unit available within his permitted allocation. Mercedes will therefore install his fourth power unit of the campaign without triggering a grid penalty.
“During George’s final lap in Q3, we detected a loss of water pressure on his car and told him to stop as a precaution once he had completed the lap,” Mercedes explained after qualifying.
“Following further checks, we have decided to replace his power unit ahead of tomorrow’s race, moving to his fourth unit of the season and therefore remaining within his allocation. As the change involves replacing a damaged component with one of the same specification, George will not receive a grid penalty.”
The engine change comes after Toto Wolff had sought to reassure the driver as Mercedes targeted a trouble-free weekend, with the team hoping to move beyond the recent issues covered in its pre-Hungarian GP preparations.
Russell believes Mercedes race pace is stronger than qualifying form
Assessing Mercedes’ performance, George Russell said the W17 had behaved more competitively over longer runs. He explained that the team’s main limitation over a single lap was finding the correct operating window for the tyres, while the rear axle could be managed with greater control over a race distance.
That assessment supports Mercedes’ belief that the W17 could be more competitive during the Hungarian GP than its qualifying position might suggest. However, starting from seventh means a significant recovery is likely to be difficult unless unusual circumstances affect the race.
“I think our assessment after FP2 yesterday was that we were around seven tenths off on qualifying pace, while we had the fastest race pace,” George Russell said. “That tells you it isn’t a car problem, but a tyre problem.
“I think tomorrow we will get the answer as to whether we have found the right balance between warming up the tyres for qualifying and preparing them for the race.”
George Russell will therefore begin the 2026 Hungarian Grand Prix from seventh with a fresh Mercedes power unit. His prospects will depend on whether the stronger long-run pace seen by the team can compensate for the difficult starting position and the tyre warm-up limitations that affected qualifying.
Leave a Reply