AlphaTauri have carried out further power unit changes at the Saudi Arabian Grand Prix, with Yuki Tsunoda taking on an array of new power unit elements.
Tsunoda rolled out of the pits at the Jeddah Corniche Circuit for final practice with five new elements fitted, though none of these will trigger a grid penalty.
He is running a fresh Internal Combustion Engine, Turbocharger, MGU-H, MGU-K and Exhaust System in his Red Bull Powertrains-badged Honda power unit.
It comes after the Japanese driver stopped out on track in FP2 on Friday night, which the team put down to "an issue with the driveline".
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No grid penalties for AlphaTauri, yet...
All of the aforementioned elements have a season limit of three and, with Tsunoda moving onto his second of each, no grid penalties are forthcoming at this stage.
AlphaTauri encountered further issues during Saturday's final practice session, with Pierre Gasly - who also took on a range of new PU elements after his fiery retirement in Bahrain - stopping at the pit exit with an apparent driveshaft problem.
Meanwhile, Haas have replaced the Control Electronics on Kevin Magnussen's car (his second of two permitted for the campaign), following an unspecified stoppage in FP2.
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