There are 1 owner-reported electrical system complaints for the 2002 BMW M5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026