Mercedes explains Hamilton's engine settings problem

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Toto Wolff has revealed both Mercedes drivers had engine settings problems during the Grand Prix of Europe but Lewis Hamilton was unable to work out how to rectify his.

Hamilton was complaining over team radio that his engine was "de-rating everywhere", slowing his pace as he tried to fight through the field from fifth position. Mercedes could see the reason for Hamilton's lack of pace but was not allowed to tell him due to radio restrictions.

Wolff explained both cars had trouble, but team-mate Nico Rosberg was able to retrace his steps immediately whereas Hamilton did not have the same luxury.

"We had a configuration setting problem, electronical setting problem but with engine modes, which cured on both cars," Wolff said. "Because by regulations we’re not allowed to tell the driver, they needed to figure it out themselves.

"Nico was in the more fortunate situation that he did a switch change just before which kind of led him on the right path. So within half a lap he went back into the right mode. Lewis because he didn’t have that right path, it took him a while to figure it out, 12 laps. And this is what for sure affected his race.

"We don’t know how much it is, we need to analyse how much it is. As per the data it is 0.2 seconds per lap but it must affect much more because the engine was de-rating between Turn 2 and 3 where you expect the biggest boost, and that probably subconsciously affects him."

And Wolff says the problem arose from some errors on Friday while the team was getting to grips with a new circuit.

"The settings were wrong because we had a messy Friday where we couldn’t configure it in the way we should have done. So it was preset in the wrong way. And it happened a little bit earlier on Lewis’ car than on Nico’s car, I think it was three laps earlier.

"You’re permanently trying to optimise the modes and this was an optimisation which we felt we needed to have on the car and which needed the right calibration."

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Andrew Lewin

Andrew first became a fan of Formula 1 during the time when Michael Schumacher and Damon Hill were stepping into the limelight after the era of Alain Prost, Nigel Mansell and Aryton Senna. He's been addicted ever since, and has been writing about the sport now for nearly a quarter of a century for a number of online news sites. He's also written professionally about GP2 (now Formula 2), GP3, IndyCar, World Rally Championship, MotoGP and NASCAR. In his other professional life, Andrew is a freelance writer, social media consultant, web developer/programmer, and digital specialist in the fields of accessibility, usability, IA, online communities and public sector procurement. He worked for many years in magazine production at Bauer Media, and for over a decade he was part of the digital media team at the UK government's communications department. Born and raised in Essex, Andrew currently lives and works in south-west London.