Breaking news

Formula 1 Austrian GP

Bottas forced to switch back to old-spec engine

Mercedes faced fresh drama with its latest specification power unit in Austria on Friday morning when Valtteri Bottas was forced to switch back to an old power unit after an oil leak was discovered on his Phase 2 version.

Jonathan Noble

Jonathan Noble

Edited: Jun 28, 2019, 4:28 PM

Copy link

Share on Facebook

Share on Twitter

Share on WhatsApp

Share on Linkedin

Share on Pinterest

Share on Viber

Add as a preferred source

Mercedes AMG F1 W10

Shortly before the opening practice session got underway, Mercedes was forced to make a swift change of engine on the Finn's car after the issue was discovered.

It is the latest in a run of niggling issues that have emerged with the Phase 2 engine ever since it was introduced for the first time at the Canadian Grand Prix.

In Montreal, Lewis Hamilton had a nervous build-up to the race when Mercedes discovered an hydraulic leak that needed fixing in the hours before the start of the grand prix.

Read Also:

That was the same weekend that Lance Stroll suffered a fiery failure in his Racing Point during practice, which was eventually traced back to a spark plug problem.

Last week in France, Hamilton's mechanics had to work hard to fix a sensor problem that was discovered before qualifying, while the control electronics and energy store in George Russell's Williams were also changed ahead of qualifying.

Speaking ahead of this weekend, Mercedes boss Toto Wolff was clear the the German car manufacturer had to get on top of the problems with the engine before it hit trouble in an actual race.

"This year, our race finishing record has been good, but it would be complacent to ignore the fact that for two weekends in a row now, our mechanics had to perform the equivalent of "open-heart surgery" on our cars," he said

"We've faced a number of different issues on different components, each of which could have easily caused us to retire, so we need to get on top of those challenges as quickly as possible. "

We want your opinion!

What would you like to see on Motorsport.com?

Take our 5 minute survey.

- The Motorsport.com Team

Read and post comments

Read also :

Share Or Save This Story

Copy link

Share on Facebook

Share on Twitter

Share on WhatsApp

Share on Linkedin

Share on Pinterest

Share on Viber

Previous article F1 teams reject return to 2018-spec tyres

Next article Red Bull drops Ticktum from junior programme

Top Comments

There are no comments at the moment. Would you like to write one?

View More & Comment

More from

Jonathan Noble



Brundle awarded OBE in King’s New Year’s honours

Formula 1

Formula 1

Brundle awarded OBE in King’s New Year’s honours



The new rules dilemma that will define the 2025 F1 season

Formula 1

Formula 1

The new rules dilemma that will define the 2025 F1 season



Verstappen issues Red Bull title warning in push for RB21 progress

Formula 1

Formula 1

Australian GP

Verstappen issues Red Bull title warning in push for RB21 progress

More from

Valtteri Bottas



Colton Herta qualifies for F1 superlicence as Valtteri Bottas remains bullish on 2027 seat

Formula 1

Formula 1

Sao Paulo GP

Colton Herta qualifies for F1 superlicence as Valtteri Bottas remains bullish on 2027 seat



Cadillac to investigate high-speed Mexico GP failure that led to angry Valtteri Bottas reaction

Formula 1

Formula 1

Mexican GP

Cadillac to investigate high-speed Mexico GP failure that led to angry Valtteri Bottas reaction



You Ask The Questions: Valtteri Bottas

Formula 1

Canadian GP

You Ask The Questions: Valtteri Bottas

More from

Mercedes



How Lando Norris prevailed in a swift errors tour of Interlagos

Formula 1

Sao Paulo GP

How Lando Norris prevailed in a swift errors tour of Interlagos



Charles Leclerc penalised for Liam Lawson clash; Kimi Antonelli and Oliver Bearman also punished after F1 Brazilian GP

Formula 1

Formula 1

Sao Paulo GP

11 h

Charles Leclerc penalised for Liam Lawson clash; Kimi Antonelli and Oliver Bearman also punished after F1 Brazilian GP



Kimi Antonelli: "Weird" spin and car instability cost F1 Brazilian GP win

Formula 1

Formula 1

Sao Paulo GP

12 h

Kimi Antonelli: "Weird" spin and car instability cost F1 Brazilian GP win

Latest news



Carlos Ezpeleta: Qatar GP “noise” left MotoGP unnecessarily exposed

MotoGP

MGP MotoGP

Qatar GP

4 min

Carlos Ezpeleta: Qatar GP “noise” left MotoGP unnecessarily exposed



Oscar Piastri splits from Mark Webber management

Formula 1

F1 Formula 1

Sao Paulo GP

28 min

Oscar Piastri splits from Mark Webber management



WEC drivers question lack of full-course yellow after heavy Monza crash

WEC

WEC WEC

Monza

2 h

WEC drivers question lack of full-course yellow after heavy Monza crash



How Formula 1 proved the naysayers wrong – for once

Formula 1

Sao Paulo GP

How Formula 1 proved the naysayers wrong – for once

Feature

Discover prime content



How Formula 1 proved the naysayers wrong – for once

Formula 1

Sao Paulo GP

By Stuart Codling

How Formula 1 proved the naysayers wrong – for once



How Lando Norris prevailed in a swift errors tour of Interlagos

Formula 1

Sao Paulo GP

By Stuart Codling

How Lando Norris prevailed in a swift errors tour of Interlagos



"He really wanted it" – why Russell was furious over aborted Brazil ‘pole’ lap

Formula 1

Sao Paulo GP

By Stuart Codling

"He really wanted it" – why Russell was furious over aborted Brazil ‘pole’ lap



What we learned from Friday practice at the 2026 Brazilian GP

Formula 1

Sao Paulo GP

By Jake Boxall-Legge

What we learned from Friday practice at the 2026 Brazilian GP

Subscribe and access Motorsport.com with your ad-blocker.

From Formula 1 to MotoGP we report straight from the paddock because we love our sport, just like you. In order to keep delivering our expert journalism, our website uses advertising. Still, we want to give you the opportunity to enjoy an ad-free and tracker-free website and to continue using your adblocker.

You have 2 options:

Subscribe now Already subscribed? Sign in here

Already disabled your adblocker?
Reload page

Manage Alerts

Subscribe