One problem related to exterior lighting has been reported for the 2007 BMW 3 Series. The most recently reported issues are listed below.
Insulation failed on wiring inside headlamp assembly, crumbling off and creating multiple exposed bare copper wiring. Discovered during lamp replacement procedure Nov 21, 2015. I overlaid all accessible wires with electrical tape in hopes to prevent a short and fire. Since then I've read of similar problems reported by several BMW owners on bimmerforums. Com, with attached correspondences from BMW denying any problem. Dealers and reputable independent repair shops are very aware of this issue.
| Headlights problems | |
| Exterior Lighting problems | |
| Turn Signal problems | |
| Tail Light Switch problems |