One problem related to software has been reported for the 2004 BMW 5 Series. The most recently reported issues are listed below.
Warning notice on "I drive" system that there was an emergency with the lighting system and the car should be stopped immediately. Directional signals no longer worked, emergency flashers were inoperative and headlights not operating properly. Brought car to dealer the next day and the problem was corrected with an update to the "I drive" software leading me to believe that BMW is aware of this very serious safety issue but has chosen to ignore it until owners experience the problem and then the owner has to pay for the update to correct the software glitch. My cost was $320. 92.
| Electrical System problems | |
| Wiring problems | |
| Software problems | |
| Battery Cable problems |