• Second Barcelona Test - Day One

Hydraulic leak limits McLaren to seven laps

ESPN Staff
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McLaren has been forced to end the first day of the final test in Barcelona prematurely, having completed just seven laps.

Jenson Button was in the car on Thursday and recorded the team's first laps since Fernando Alonso's serious crash on the final day of the second test. After an issue-laden winter so far McLaren came into the day with just over 200 laps to its name but Button was limited to only seven more in the morning.

The shutters came down in the garage around midday and after lunch the team confirmed a hydraulic leak had forced a power unit change, enough to end its test for the day. It comes after suffering numerous sensor problems in Jerez and a faulty MGU-K seal in Barcelona last week.

The team's tweet included the hashtag #TestingIsTesting, highlighting its recent stance that it expected teething problems with its new Honda package. However, with just three days of testing left until Melbourne it leaves the team in further trouble.

Jenson Button will be back behind the wheel on Friday but Kevin Magnussen is also on standby as a replacement for Fernando Alonso, who is resting following his accident on Sunday.

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