Renault believe they have the majority of the issues of with their power units, but admitted that more problems might surface at the week's Malaysian Grand Prix. The French engine manufacturer had to deal with numerous issues during pre-season and at the season-opening Australian Grand Prix earlier this month. Although reigning World Champion Sebastian Vettel's early retirement was the most high-profile failure, both Caterham and Lotus cars also retired early in the race. In fact, only three Renault-powered cars reached the finish line in Melbourne and one of them - Daniel Ricciardo - was subsequently disqualified. Nevertheless, Renault head of track operations Remi Taffin believes the...
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