SPIELBERG, Austria, June 22 (Reuters) - Formula One champions Red Bull called for change at engine partners Renault after an 'unacceptable' performance in Sunday's Austrian Grand Prix.

Quadruple world champion Sebastian Vettel retired from the race at Spielberg with an electronics problem, his third failure to finish this season due to an issue with the new V6 turbo hybrid power unit.

Sebastian Vettel gets some pit-stop assistance during the Austrian F1 Grand Prix Credit:Reuters

"The reliability is unacceptable. The performance is unacceptable. There needs to be change at Renault," team principal Christian Horner told reporters.

"It can't continue like this. It's not good for Renault and it's not good for Red Bull."