One problem related to tire has been reported for the 2003 BMW 330. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 BMW 330 based on all problems reported for the 2003 330.
Continental sport plus 215/50 zr17 replaced michelin tires with four of this size/brand. Highly unstable at highway speeds. Even more unstable under wet roadway conditions.