Mercedes team principal Toto Wolff says his team must “reassess the root cause” of the apparent recurrence in Russia of the MGU-H problem that blighted Lewis Hamilton’s Chinese Grand Prix qualifying. Mercedes had previously reported that Hamilton’s problem in China was that the MGU-H was “suspected to be associated with the insulation” – but Wolff said it was unacceptable that the same issue seems to have reoccurred in Sochi on Saturday. “It’s a very bizarre situation,” admitted Wolff. “Because it seems like we had the same failure that we had in Shanghai, which looks like we need to reassess the root cause of the failure – [that] it’s not that particular bit in...
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