Kevin Magnussen returns to the cockpit for his final day in the car before Melbourne.
Jenson’s run programme was affected by a gearbox issue – just as he was about to begin a late-morning race simulation run.
Speaking at the end of the day, Jenson said: “We had a problem within the gearbox – it took a while to change, as anything within the power-unit does these days – but we got back out at the end, and everything ran smoothly, which was good. It was a shame to lose that time – it’s the first major issue we’ve had this winter; but it’s better to suffer it here, rather than at a race weekend.
“We were still able to do a long-run on high-fuel this afternoon. The basic car is good, and there’s a great deal of potential there, but there’s still a lot of work to do. We have a good understanding of the power-unit, and we know how to race it, but, in terms of balance and grip, the car isn’t quite there yet.
“But I know we’ve got some good improvements in the pipeline – and they should help us close the gap to the front of the grid.”
1 Sergio Perez - Force India 1m 35.570s - 108 laps
2 Fernando Alonso - Ferrari 1m 35.634s - 122 laps
3 Daniel Ricciardo - Red Bull Racing 1m 35.743s - 66 laps
4 Felipe Massa - Williams 1m 36.507s - 103 laps
5 Jenson Button - McLaren Mercedes 1m 36.901 - 52 laps
6 Jules Bianchi - Marussia 1m 38.092s - 75 laps
7 Lewis Hamilton - Mercedes 1m 39.041s - 89 laps
8 Jean-Eric Vergne - Scuderia Toro Rosso 1m 39.636s - 61 laps
9 Esteban Gutierrez - Sauber 1m 39.976s - 106 laps
10 Pastor Maldonado - Lotus 1m 41.613s - 31 laps
11 Marcus Ericsson - Caterham 1m 42.516s - 55 laps