BMW's chassis code system is one of the most recognizable naming conventions in the automotive world. While marketing names change with every generation, the chassis code is the definitive identifier used by engineers, enthusiasts, and parts suppliers. Our new Chassis Library tool covers every production chassis in BMW history.
Understanding the System
BMW chassis codes follow a simple pattern: a letter prefix followed by two digits. The letter indicates the generation era: E (Entwicklung/Development) for classic through 2000s models, F (Folge/Sequel) for 2010s models, G (Generation) for current models, and U/NA for the upcoming Neue Klasse platform.
The Eras
The library organizes chassis codes into five eras: Neue Klasse & New Class (1962-1977), E-Chassis Golden Era (1975-2013), F-Chassis Modern Era (2010-2019), G-Chassis Current Generation (2018-present), and the forthcoming Neue Klasse Electric Era (2025+).
What's Included
Each chassis entry includes production years, body style, platform details, notable engines, and key model variants. Whether you're identifying a car at a meet, researching a purchase, or settling a debate about which generation 3 Series is best, the Chassis Library has you covered.
Access it from the Tools menu or directly at chassis-library.php.