Red Bull team principal Christian Horner has called for Renault to highlight "a clear direction" in order to help improve on a poor start to the season.

Renault started 2015 with drivability issues in Australia, with reliability also a problem throughout the opening races as Daniil Kvyat will use the third of his four power units this weekend in Bahrain. Horner has been vocal in his criticism of Renault after an uncompetitive start to the year, while Cyril Abiteboul claims a recovery plan can be put in place using the tokens available to the engine manufacturer.

Horner believes making that plan a clear one is key to any future success. Asked if he still has faith in Renault, Horner replied: "If you look at the facts of where we are, we're not in a great situation.

"But Viry has got a long history of success in Formula 1 and they've still got some very capable people there. At the moment, for whatever reason, that's not working.

"As Ferrari has demonstrated, things can be turned around pretty quickly when you've got a clear direction and a clear focus. Whatever we can do from our side, because we are reliant on each other, in order to assist Renault understand their current issues, there's no bigger priority."

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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.

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