One problem related to engine exhaust system has been reported for the 2004 BMW 545. The most recently reported issues are listed below.
Tl- the contact owns a 2004 BMW 545i. The contact stated that while at a complete stop, he attempted to accelerate and a large cloud of smoke emitted from the exhaust. The vehicle was taken to the dealer where it was found that the valve stem seals had failed. The vehicle was not repaired. The manufacturer was contacted about the failure. The failure mileage was 94,000. The VIN was not available. Kmj.