The first qualifying session began under the threat of rain, so most of the teams tried to set a good lap time before the conditions deteriorated. The Audis and Peugeots swapped the overall pole position several times, and at the end of the session the No. 1 Audi was fastest overall with a time of 3.28.301. The No. 33 Barazi-Epsilon Zytek led LMP2, after an earlier misfiring problem had been repaired. Oreca's Saleens were the fastest two GT1 cars, while Ferrari and Porsche were close to one another in GT2. The session was red flagged about halfway through because of an accident in which the No. 53 JLOC Lamborghini Murciélago, driven by Marco Apicella, hit the wall at the first Mulsanne chicane. The No. 25 Ray Mallock Ltd. Lola and No. 81 LNT Panoz were the only cars not to set a lap time before the session briefly returned to green as rain began. The ACO extended the session by fifteen minutes to compensate for the earlier red flag.