F1 News, Reports and Race Results

Wolff reckons Mercedes engine woes cost 0.5s per lap in Bahrain

Mercedes endured a challenging Bahrain Grand Prix plagued by engine issues that affected both their own cars and those of their customer team Williams, according to team boss Toto Wolff.

Russell enjoyed a promising start, seizing second on lap 4 thanks to an impressive overtake on Charles Leclerc, the Briton running at that point just 1.7s behind future race winner Max Verstappen.

However, Russell was suddenly forced to contend with a power unit issue that required lifting-and-coasting to keep temperatures in check. Hamilton, already battling a cracked seat, was similarly affected.

But Mercedes’ engine concerns also appeared to impact Williams. Both Alex Albon and Logan Sargeant encountered PU problems, while the American also suffered a steering wheel electronics fault that led to a temporary halt out on the circuit.

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The combined effect of these problems was a disappointing performance for both teams. While Russell managed a fifth-place finish, Hamilton concluded his evening in seventh, far from the podium contention they had hoped for.

The team now faces the task of quickly addressing the engine problems to avoid hampering their campaign in the upcoming races.

"[Pre-season] testing was pretty good,” commented Wolff as he reviewed his team’s weekend. “Also, the performances on Thursday and on Friday were encouraging. The car was stable, was good. The drivers like it.

"When we started the race on the soft tyre, everything pretty much [was] to plan. And then, unfortunately, we had to start pulling the engine more than we expected. We can't understand yet where that came from.

“We have one of our customer teams, Williams, who had the same issue. The other two [McLaren and Aston Martin] not. That was unexpected."

According to Wolff, the combined effects of Mercedes’ engine woes and preventive measures resulted in a performance drop exceeding half a second per lap.

"From then on, if you switch 0.3-4s of power unit performance off, then you have to lift-and-coast on top, so I think at times probably altogether it was 5 or 6 tenths of a second that we couldn't take from what the car had in it,” he said.

"Therefore, it just wasn't great fun… At times, we were literally not a few degrees, but like 10 degrees running over what we thought we should be.

"I think, even without traffic, at the beginning, we were already over the limit," he added.

"We don't know because we pretty much run the same cooling levels than on the long runs we did in the days before. It just spiked more than we thought.

"I don't believe that any other team opened the car more [with additional cooling vents] than they did before. So, it's a thing that was probably more with us."

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Phillip van Osten

Motor racing was a backdrop from the outset in Phillip van Osten's life. Born in Southern California, Phillip grew up with the sights and sounds of fast cars thanks to his father, Dick van Osten, an editor and writer for Auto Speed and Sport and Motor Trend. Phillip's passion for racing grew even more when his family moved to Europe and he became acquainted with the extraordinary world of Grand Prix racing. He was an early contributor to the monthly French F1i Magazine, often providing a historic or business perspective on Formula 1's affairs. In 2012, he co-authored along with fellow journalist Pierre Van Vliet the English-language adaptation of a limited edition book devoted to the great Belgian driver Jacky Ickx. He also authored "The American Legacy in Formula 1", a book which recounts the trials and tribulations of American drivers in Grand Prix racing. Phillip is also a commentator for Belgian broadcaster Be.TV for the US Indycar series.

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