Volkswagen is recalling certain model year 2001-2004 Audi A6, model year 2002-2003 S6 and model year 2003 RS6 vehicles equipped with 4.2L engines and manufactured from June 19, 2001, through June 8, 2004. The aging of the plastic material in the fuel tank rollover valve combined with bending stress from the aluminum ventilation line to the rollover valve nipple may lead to cracking of the nipple. If this happens, a fuel leak may result.
Dealers will reinforce the nipple on the rollover valve to prevent leakage or repair the cracking at the nipple. The recall is expected to begin during June 2011. Owners may contact Audi at 1-800-822-2834.