Renault is confident it can introduce "permanent fixes" to the problems which have plagued Red Bull and Toro Rosso this season in time for the Spanish Grand Prix.

There is pressure on Renault to bring an updated power unit to Barcelona after Daniel Ricciardo blew his third engine in spectacular style at the Bahrain Grand Prix. Drivers can use four before incurring penalties, something both Red Bull drivers have said are inevitable sooner rather than later.

Renault Sport F1 managing director Cyril Abiteboul admitted Bahrain was not an ideal outcome but insisted the manufacturer can make a step forward in time for the next race.

"Another engine problem is definitely not what we wanted to see, but I will take as a positive sign that it was at the very end and did not impact the final result of Daniel," Abiteboul said after Sunday's race. "Reliability has been our Achilles Heel since the last two races, but with 18 days to go before the first session in Spain, we have the time to introduce the more permanent fixes we have in the pipeline and start making the performance steps we are all keen to make.

"It wasn't a memorable weekend for us in any way, but we did what we needed to do. We came aware of the risks from the previous race, and considering the starting positions, sixth and ninth is the best we could have hoped for with Red Bull. Toro Rosso did not fulfil the potential, and a double retirement is a disappointment after the strong performances of the first few races."

His statement was echoed by director of operations Remi Taffin.

"With three weeks to the next race we will look in detail at the first four races - the positive, as well as the negative. We will also look at more permanent fixes to the problems experienced and take further steps forward on all fronts."