Lewis Hamilton took no part in Thursday’s Formula 1 test running in Barcelona after an electrical issue forced Mercedes to miss most of the morning session.
Hamilton has split testing commitments with Mercedes teammate Valtteri Bottas this week, with each driver taking half a day behind the wheel.
Hamilton had been due to run in the morning when the track was wet, made so artificially to allow Pirelli to gain data for its compounds.
Mercedes confirmed that its running had been compromised by an electrical issue on the W08 EQ Power+ car, leading to the decision to bench Hamilton for the day.
The issue on the car was resolved to allow Bottas to get out later in the day, adding to Mercedes’ mammoth mileage racked up through the first three days of testing.
Hamilton will return to the track next week, with the second pre-season test at the Circuit de Barcelona-Catalunya starting on March 7.