Early Honda problem interrupts McLaren's first day of F1 testing
McLaren's opening day of pre-season Formula 1 testing got off to a troubled start when its new car stopped with a Honda oil system issue after just one installation lap
The team had successfully completed a 100 kilometre filming day at Barcelona on Sunday, ahead of the proper start to testing on Monday.
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But although Fernando Alonso got out of the garage early on to prepare for the day's programme, Honda discovered a problem on the MCL32 after he had returned from his initial installation lap.
A Honda spokeswoman said: "We have an oil systems issue which requires a full investigation.
"We plan to run again today, but due to the difficult access location it will take several hours to resolve."
Honda has introduced an all-new engine for 2017, adopting the split turbine and compressor concept that Mercedes has put to great use under the new turbo hybrid rules.
McLaren was not the only team to hit trouble on the opening morning of running, with Red Bull's Daniel Ricciardo bringing out the first red flag of the test.
The Australian stopped with a sensor issue after completing four laps in the Renault-powered car.
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