Marko: What annoyed us is that Renault were not open, now there is a constructive cooperation 17 April, 2014 Helmut Marko with Remi Taffin Renault’s 2014 V6 turbo power unit crisis began to ease when the French manufacturer became more open, according to outspoken Red Bull senior man Helmut Marko. He revealed during an interview with the Austrian news agency APA that when the depth of the pre-season crisis became clear, he began a series of emergency visits to France. “We found many errors,” Marko said ahead of the Chinese Grand Prix. “What annoyed us is that [Renault] were not open. Now there is a constructive cooperation,” he revealed. “We are working hard with both Renault and Toro Rosso. The basic mistake was that Renault started work much too late.” Marko is now hoping the problems were not discovered too late to stop Mercedes from walking away with the title. Renault powered teams were plagued with problems during preseason testing “We are optimistic,” he said, “because we know we are still not optimal with the engine in some areas. We know to what degree it works and to what degree it does not. “So it all depends on the development. On the chassis side, we have done our part.” Marko has already claimed that Red Bull’s disadvantage to the field-leading Mercedes V6 is as much as 80 horse power. “We are used to winning with less horse power if you’re clever in the other areas,” he explained. “But 80 is too much, especially if you are also significantly worse in the driveability. And Mercedes is also coming to the finishing line with 6 kg left in the tank, while we measure what is left in grams,” said Marko. (GMM) Subbed by AJN. Content on GrandPrix247.com by: staff & contributors, Reuters syndication, GMM service, Getty Images, Formula 1 teams, sponsors & organisations.