One problem related to turn signal has been reported for the 2002 BMW 330. The most recently reported issues are listed below.
The contact owns a 2002 BMW 330i. He experienced a recurring failure in which the exterior lights failed. The rear passenger side exterior lights intermittently failed to function until he removed the rear lighting cover in order to shift the wires. He also intermittently received a message indicating that the turn signal bulbs were blown out. When he examined the bulbs he would noticed that they were functioning. The vehicle was taken to an authorized dealer on numerous occasions but the vehicle was never repaired. The failure mileage was 30,000. The current mileage was 92,000.