In 2002 his secondment to Minardi came to an end, and so he headed back to Renault. He spent a year there as a test driver, and in 2003 was given his full racing colours after Jenson Button moved to BAR. On his debut with Renault he finished seventh in Australia, and went on that same year to become the youngest driver to achieve a pole position. That was at the Malaysian GP, and he was 21 years old. 2003 was also the year when he suffered the worst accident of his career, colliding with a wheel after Mark Webber had suffered an accident in the Brazilian GP.