Red Bull Racing's pre-season troubles continued in Bahrain on Saturday where Daniel Ricciardo covered just 15 laps.
Arriving at the Sakhir circuit wanting track-time, Red Bull will now move onto the third test in dire need of laps.
The team covered just 116 laps the entire test of which Ricciardo completed 43.
The Aussie's running was hampered on Saturday morning by a software issue while a mechanical problem in the afternoon meant he didn't do any running in the last three hours of testing.
"In all honesty it wasn't a great day today," said Ricciardo.
"I guess we still need more time. We have four more days coming up and hopefully we can maximise those.
"I have to say that on the run we did today the car did feel better. But unfortunately another problem arose and we couldn't exploit that potential. I hope we can do more running next week.
"I'm happy I'm doing the first two days. At this stage we just need laps and I'm just hanging to get back in the car."
Explaining Saturday's woes, Race Engineering Co-ordinator Andy Damerum revealed that it was more than just one problem.
"On Daniel's install we noticed a software problem and that knocked us back for the morning," he said. "We got out again around lunchtime and put in a 10-lap run but we had to abort that as we had another mechanical issue.
"We brought Daniel back in and discovered some damage on the car, which following investigation was worse than we imagined.
"The guys worked really hard to get everything fixed and we were hopeful of getting out at the end of the day, even if just for an install.
"In the end, though, I don't think it would have been possible as a couple of late red flags ended running for everyone.
"It's been a difficult week: we've made some very good progress, particular on day two, but we've also had a number of problems that have again held us back.
"The engineering team will head back to Milton Keynes now to plan the next moves and we can only look forward and try to get everything in place for T-03 here next week."
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