Sauber have introduced new measures to ensure the problem that meant Hulkenberg was unable to compete in the opening race of the 2013 F1 season will not happen again.
“What happened was that many factors led to the creation of a vacuum in the fuel cell – so it collapsed in on itself,” Sauber team principal Monisha Kaltenborn explained.
“That damaged the fuel cell. The engineers already had a good understanding of it in Melbourne. We tested some things here and had some tests in Hinwil.
“We have introduced a couple of measures and looked at different reasons that should lead us to solve the problem.”
Kaltenborn also said that the problem was disappointing for Hulkenberg as he had qualified well and had a chance to score some points.
“Everything is no speculation in terms of where he could end up,” Kaltenborn continued. “He had a good chance to get in the points and if you see this chance fizzle out maybe two hours before the race, it is particularly disappointing.”
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