Mercedes ends opening test day early
5 February 2013 – Mercedes has been forced to cut short its planned programme for the opening day of testing at Jerez, with the team's F1 W04 chassis suffering an electrical problem. The issue presented itself in the morning session, when Nico Rosberg stopped on-track soon after a section of bodywork at the rear of his new car caught fire.
In order to ensure that a faulty wiring loom is fixed in time for Lewis Hamilton's first full-speed laps in the car tomorrow, the outfit will sit out the rest of Tuesday's running.
"After identifying the cause of the problem, we will not be running again today whilst parts are modified ready for tomorrow," the team said of the problem, which occured at around 10am local time (GMT +1). "The part which requires modification is the wiring loom where the electrical fault originated this morning."
As the afternoon session enters its final two hours, Rosberg sits fifth on the timing screens with a slender total of 11 laps to his name. The German driver is due to alternate with new team-mate Hamilton for the remaining three days of the test.
Rosberg upbeat despite electrical issue