Daniel Ricciardo didn’t complete a lap in the second free practice session after Red Bull Racing had to change his engine in Melbourne.
The Australian was unable to take part in FP2 on Friday because of the mechanical problem he suffered after the first session, in which he was only able to complete nine laps.
The engine change will not cost him a grid penalty.
“The problem kept coming up in FP1 and I had a feeling from early on that we had a problem,” said Ricciardo afterwards. “As far as I know, we’ve saved it so it’s not a massive shot in the foot.
“I’ll try and look to what Daniil (Kvyat) learned on track today and take it into tomorrow. The track felt pretty rubbered in already, and I should be able to get up to speed pretty early on. I just want to get the ants out of my pants!”
Team-mate Daniil Kvyat was able to take part, and managed to complete a promising number of laps - 27 - ahead of Sunday’s race.
The Russian, making his debut for the Tilbrook squad, posted the sixth fastest time of the session in 1:30.016.
Nico Rosberg, who led the first session, also ended the second on top of the pile with a time of 1:27.697, a tenth of a second faster than world champion Lewis Hamilton.