Renault has vowed to get on top of its reliability issues after both Daniil Kvyat and Max Verstappen suffered ICE failures during the Chinese Grand Prix.

The French firm is coming under increasing pressure to step up its performance having struggled with performance and reliability during pre-season testing and the opening races of 2015.

Though all four of its supplied cars reached the finish line in Malaysia, Red Bull's Kvyat and Toro Rosso's Verstappen both suffered the same race-ending failures, which Renault believes is a result of changing the power units earlier than anticipated.

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"As a company, we hold our hands up when it's our problem, and in the race that was the case," said Cyril Abiteboul. "China did not suit us on a performance level, which we expected, but we also had reliability issues, which we did not. Introducing new Power Units across cars earlier than expected unfortunately meant some issues from the first specification were carried over.

"It created another challenge to manage, but we believed we had them under control. We have already spoken with Red Bull and Toro Rosso and there's not much more to say apart from we have to investigate the reasons for the failures and put in place countermeasures for 100% reliability as quickly as possible."

Due to the short turnaround between races, Abiteboul predicts Renault could endure similar issues in Bahrain too.

"With just five days to go, we know that Sakhir will be another test for us. But we will react to counter the issues, just as we did with the driveability situation encountered in Melbourne; now at its best level of the V6 era just two races later."

The failures come as pressure mounts on Renault to step up its performance, though Red Bull's Christian Horner - who was publically critical after the Australian Grand Prix - says they will work together to find a solution.

"Obviously it has not been a great day," he said. "First of all, you have to understand what has happened, so obviously we had a failure in Daniil Kvyat's car and some sort of failure in Max Verstappen's car, but we have got to the root core of the issue. It is frustrating for us and frustrating for Renault, but the question is how we get ourselves out of this situation."