McLaren was forced to end its running after 51 laps on day three of pre-season testing due to a hydraulic leak.
Jenson Button was at the wheel of the MP4-31 on Wednesday and had enjoyed a largely productive morning following Fernando Alonso's 119 laps on Tuesday. However, the 2009 world champion then stopped at the end of the pit lane early in the afternoon, causing the pit lane to be closed while running continued on track.
Racing director Eric Boullier confirmed a hydraulic leak was the cause, and while he downplayed the severity of the stoppage at the time, McLaren was unable to run again and ended its day early.
Alonso will be back in the car on Thursday for the final day of the first test in Barcelona, though there is a threat of rain for the morning session.
Follow live coverage and timing from pre-season testing here
Who is driving when during the first pre-season test
GALLERY: Pre-season testing day three
Keep up to date with all the F1 news via Facebook and Twitter
Formula 1 is now believed to be on the brink of confirming the cancellation of…
F1 fans on Shanghai witnessed another commanding performance from Mercedes in Friday’s Sprint qualifying, with…
Mercedes team principal Toto Wolff made no effort to hide his satisfaction after Sprint qualifying…
Charles Leclerc did not hide his anger after sprint qualifying at the Chinese Grand Prix,…
Max Verstappen did not bother to sugarcoat his performance after sprint qualifying for the Chinese…
There was a sense of bafflement lingering in the Shanghai paddock after Sprint qualifying for…