Date Thursday February 19 2015
Driver Jenson Button
Location Circuit de Barcelona-Catalunya (4.655km)
Best lap-time 1m28.182s
Programme The team kicked off this week’s Barcelona test with a series of short runs to evaluate some mechanical balance changes. After concluding the third run of the morning, and with the team getting into the programme, a broken seal on the MGU-K caused a problem that ended running for the day. Despite the stoppage and the limited running, Jenson was upbeat about the car’s balance, handling and predictability.
Honda R&D senior managing officer – chief officer of motorsport
“We had to stop running this morning after discovering a faulty seal on the MGU-K. That faulty part then caused an issue that requires full replacement of the power-unit – and the time needed to make those changes effectively ends today’s programme.
“We’ll need to run a re-designed component to avoid a potential repeat of the problem. Unfortunately, we won’t be in possession of that updated part until Saturday, which means that we may face the same problem when we run again tomorrow.
“Such issues are all part of testing, but we’ll make the best changes we can overnight, and will plan for a productive day of running – with Fernando behind the wheel – tomorrow.
“Hopefully, with a bespoke solution ready for Saturday, both drivers will have an opportunity to get some useful laps under their belts, with Jenson driving on Saturday, and Fernando concluding the test on Sunday.”
Today’s unofficial testing times
1 Pastor Maldonado Lotus 1m25.011s 69 laps
2 Kimi Raikkonen Ferrari 1m25.167s 74 laps
3 Daniel Ricciardo Red Bull 1m25.547s 59 laps
4 Sergio Perez Force India 1m26.636s 34 laps
5 Felipe Nasr Sauber 1m27.307s 79 laps
6 Max Verstappen Toro Rosso 1m27.900s 94 laps
7 Jenson Button McLaren-Honda 1m28.182s 21 laps
8 Pascal Wehrlein Force India 1m28.329s 32 laps
9 Pascal Wehrlein Mercedes 1m28.489s 48 laps
10 Susie Wolff Williams 1m28.906s 86 laps
11 Lewis Hamilton Mercedes 1m30.429s 11 laps
What’s next Second day of the test – first day in the car for Fernando. With the prospect of limited mileage, the team will look at undertaking some time-intensive bigger set-up changes in a bid to maximise learning about the car’s balance – so expect lengthy breaks between runs throughout the day.
Test dates Four days (February 19-22).