Lewis Hamilton received a new-spec MGU-K element to kick off the British Grand Prix weekend, with Mercedes insisting the change is a precautionary measure.
Mercedes was initially planning to change the component at next weekend's 70th Anniversary Grand Prix at Silverstone, but decided to bring forward the change to ensure a better level of reliability and after "anomalies" were observed in Hungary.
All other Mercedes-powered drivers - including Hamilton's teammate Valtteri Bottas - will receive the updated Motor Generator Unit - Kinetic at next week's round at Silverstone.
"It's a precautionary change one race earlier than planned due to some data anomalies after Hungary," a Mercedes representative told Motorsport.com.
"It's an updated spec of MGU-K for reliability reasons, which will be on all cars from next weekend."
As a reminder, drivers are allowed a total of three MGU-K elements for the entire season.
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
Red Bull-Ford has retained its position as Formula 1’s power unit benchmark after the FIA…
Spain’s new Madring has yet to host its first Formula 1 race, but FIA F3…
Mark Webber’s role in Oscar Piastri’s career is not simply about managing the McLaren driver’s…
Had Niki Lauda been given the good fortune to read the next day's newspaper on…
Few places in Formula 1 carry as much emotional weight for Ferrari as Monza, and…
Red Bull has been forced to confront an uncomfortable reality after the Dutch Grand Prix,…