Renault is ready to invest more in order to get out of the difficult situation it is in following a disastrous start to the 2015 Formula 1 season.
The Renault-powered Red Bull and Toro Rosso teams have managed 35 points between them in four races, with a couple of sixth-place finishes as their best result so far.
The French manufacturer has struggled both with reliability and performance, and has been criticised openly by Red Bull's bosses.
But Red Bull team principal Christian Horner says Renault has acknowledged the need to seriously react.
Renault chief executive Carlos Ghosn has admitted the problem and has guaranteed additional funds to rectify the situation.
"Last week, after the Chinese Grand Prix, I was in Paris where we had very constructive discussions with Renault representatives," said Horner.
"Renault wants to change the situation, they want to succeed in Formula 1, because the situation at the moment is not good for them.
"Of course, that cannot be achieved for free. They understand that and seem to have found a solution."