Renault is confident that the issues experienced with its new V6 Turbo power-unit at the opening winter test in Jerez have been solved, although it is still behind schedule.
The French supplier suffered a nightmare start to the new F1 era at the first test two weeks ago, with the three Renault customers in attendance completing a total of just 151 laps over the course of the four-day event.
Numerous power-unit and ERS problems prevented Red Bull, Toro Rosso and Caterham from completing more running at the Spanish circuit. However, Renault has been working flat-out to solve the issues – with some of the repairs being tested successfully at the Lotus E22 shakedown last week.
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