Honda is working to improve the quality of its components to help with reliability ahead of the first race of the season in Australia.

An encouraging start to the second test on Thursday was brought to an abrupt end when Honda discovered a faulty MGU-K seal, with a replacement part needing to be produced. Speaking exclusively to F1i, Honda motorsport chief Yasuhisa Arai explained that the quality of certain parts needs to be improved over the coming weeks.

“It’s a quality issue, not design related,” Arai said. “So our design is part of a very tight package for aerodynamics and it’s a very good design, but some sealing parts have some not so good quality so that’s the seal problem we had. Yesterday we got another part and put it on the car and made it run very well.”

When asked about the new part that was introduced on Friday, Arai said it was not a permanent replacement but just an adjustment to allow the team continue testing.

“It’s not the final part, it’s just a temporary fix. We’re still investigating how we can improve the quality with the target of Australia.”

McLaren's running on Saturday was limited to just 12 laps in the morning session after Button stopped on track when the engine shut down.

Click here for live coverage of testing from Barcelona

Feature: A closer look at the McLaren MP4-30

Click here for the gallery from day three of the second test

Keep up to date with all the F1 news via Facebook and Twitter

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.

Recent Posts

Sainz reveals ‘not ideal’ reality shared with Alonso

Carlos Sainz has lifted the lid on a private paddock conversation he enjoyed with Fernando…

57 mins ago

Horner names the true culprits of his Red Bull exit

Christian Horner has offered a revealing look back at his dramatic exit from Red Bull…

3 hours ago

McLaren Majesty: When Prost and Lauda stood alone

Alain Prost follows Niki Lauda by just two days on the February birthday calendar, the…

4 hours ago

Coulthard on why Bottas has the edge over Perez at Cadillac

Sergio Perez’s Formula 1 comeback with Cadillac is already under the microscope – and he…

5 hours ago

‘Not pure Formula 1’: Verstappen fires fresh salvo at 2026 cars

After pre-season testing in Bahrain gave F1’s drivers their first real taste of the sport’s…

6 hours ago

‘In Her Corner’: Australian GP celebrates women shaping F1

In a first for Formula 1, the Australian Grand Prix Corporation has announced that Turn…

8 hours ago