One problem related to trunk wiring has been reported for the 2007 BMW 335. The most recently reported issues are listed below.
Upon car system notification that a headlight malfunction was noted I open the headlight access door on the dynamic projection headlamp to inspect and replace the bulb. At this time I noticed large amounts exposed wiring going from the connector to the main harness. As I continued to inspect the wiring the insulating material around the wires continued to crumble exposing more wiring. This is true for both left and right headlights, both headlamps have sealed access doors and is concerning for. Electrical short or fire hazards in/near the high heat generated from. The lamps and or engine compartment.