Mercedes confirms the cause of Lewis Hamilton’s Malaysia engine failure

Mercedes have confirmed that Lewis Hamilton's power unit suffered a "big-end bearing" failure during the Malaysian Grand Prix, which led to a loss of oil pressure and his subsequent retirement from the lead of the race.

"Our analysis has shown that Lewis’ engine suffered a big-end bearing failure in Malaysia," the team confirmed. "This happened without warning after 618km and was preceded by a loss of oil pressure in Turn 15."

This weekend Hamilton will revert to the engine he used in Singapore.

Mercedes also confirmed they would revise their engine parameters to minimise a repeat of the issue, whilst the planned introduction of an upgraded customer unit for Williams, Force India and Pascal Wehrlein will be delayed until Austin.

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Speaking on Thursday, Hamilton said he'd moved past the disappointment: "I haven’t been thinking about the last race. Usually when I leave the racetrack I think about a lot of other things. I have a lot of other stuff going on.

"I was in Tokyo, enjoying my time. I love being in Tokyo. One of my favourite cities, it’s in my top three favourite cities in the world. That’s about it."