One problem related to vehicle overheat has been reported for the 2004 BMW 545. The most recently reported issues are listed below.
The contact owns a 2004 BMW 545i. While driving 65 mph, the vehicle overheated. The contact stated stated that the pump cool pipe was making the vehicle overheat. The contact stated that the vehicle was diagnosed. The manufacturer was notified of the failure. The failure mileage was 140,000.