One problem related to car will not start has been reported for the 2002 BMW M5. The most recently reported issues are listed below.
Unknown battery drain causes premature failure of battery and more than average replacement intervals - every two years as opposed to 5-7 yrs. Car will not start if idle for 24-48 hours. I would like to file a claim for the charging system and associated equipment for any BMW M5 (e39) built between 2000-2003.