The 2003-2004 BMW 540i Sedan, the final year of the E39 generation, is described as an extraordinary motor vehicle that combines sports car agility with luxury. Reviewers hail it as potentially "the best sedan ever made," appreciated for its acceleration, handling, comfort, and classy look compared to the subsequent E60 model. It's famous for its V8 power and excellent dynamics. Infamously, it is a maintenance "hog," with parts like the final stage unit, cooling system components, and timing chain guides commonly failing. Today, it is best suited as a cherished enthusiast car or weekend driver, particularly for those willing and able to perform their own maintenance.
The 2003-2004 BMW 540i (E39) has high operating costs due to reliability concerns like oil leaks, cooling system issues, and suspension wear (tension strut bushings). Maintenance is expensive, potentially requiring thousands yearly. Insurance is generally above average.
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