Article To news overview © Mercedes Mercedes may be hiding engine reliability concerns with their power units, suspects RacingNews365.com F1 journalist Dieter Rencken. This follows a weekend in which Valtteri Bottas was forced to take a new power unit for a second consecutive race weekend, after taking a new engine and grid penalty at Monza. After just one race, he had to take another new one in Russia, with the previous unit being sent back to Mercedes engine headquarters at Brixworth for analysis as the team confirmed they had discovered an issue. With Williams also forced to change a Mercedes engine for Nicholas Latifi, Rencken suspects there may be something bubbling under the...
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