McLaren has announced it has ended its running for the day with three hours remaining of day three at Jerez.

Fernando Alonso was able to take to the track at 0900 after progress was made with the new Honda power unit late on Monday afternoon, and the MP4-30 quickly completed 32 laps after managing just 12 on the first two days combined.

However, Alonso was confined to the garage at lunchtime after noticing a problem during an out lap and McLaren confirmed via Twitter that a loss of cooling water pressure had proved a major enough issue to curtail its running on Tuesday.

Jenson Button will take over the car on the final day of testing at Jerez before a gap of two weeks between the first and second tests.


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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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