Red Bull takes comfort from Ferrari's Formula 1 recovery

Horner's team - which won all the drivers' and constructors' title from 2010-13 and was the only team to beat Mercedes to grand prix victories in '14 - has yet to finish higher than sixth in the opening three races of this year.

In contrast, Ferrari ended a 30-race victory drought in Malaysia last month and has displaced Red Bull and Williams as Mercedes' closest challenger on outright pace.

Horner said Red Bull was taking comfort from what Ferrari had achieved.

"As Ferrari has demonstrated, things can be turned around pretty quickly when you've got a clear direction and a clear focus," he said.

The quality of Red Bull's Renault engine has been a bone of contention this season, while Ferrari's power unit gains are considered crucial to its recovery.

But Horner insisted the two companies will keep working together to find a solution.

"If you look at the facts of where we are, we're not in a great situation," he said.

"But [the Renault factory in] Viry has got a long history of success in Formula 1 and they've still got some very capable people there.

"At the moment, for whatever reason, that's not working.

"The solution is we get our heads down. We work hard.

"Whatever we can do from our side, because we are reliant on each other, in order to assist Renault understand their current issues, there's no bigger priority."