E46

The E46 is the internal chassis code for BMW's fourth generation of the 3 Series, produced from 1998 to 2006. It followed the E36 and preceded the E90 family. The E46 aimed to improve driving dynamics and interior quality, offering a more refined ride and greater perceived quality for a compact luxury sedan.

The E46 was available in multiple body styles, including sedan, coupe, convertible, and wagon (Touring). It featured a longer wheelbase and wider track than the E36, with improved body stiffness and interior space. The design emphasized a balance of sporty proportions and everyday usability, while delivering a more composed ride and refined road manners.

Powertrain options included petrol inline-fours and inline-sixes, plus diesels in European markets. Displacements generally ranged from about 1.8 to 3.0 liters. In North America, common choices included 2.5- and 3.0-liter six-cylinder engines. Transmissions included five- and six-speed manuals and five- and six-speed automatics; the high-performance M3 variant offered a six-speed manual and, in some configurations, SMG II.

Notable variants included the M3, powered by the S54 inline-six, recognized for high-revving performance and precise handling. Diesel models such as the 320d and 330d were popular in Europe. Across the range, features included ABS, airbags, and stability control, with options such as xenon headlights and run-flat tires on select models.

The E46 is widely regarded for its balanced handling and refined ride, contributing to the 3 Series’ reputation as a driver-focused compact luxury sedan. Maintenance considerations for aging examples often center on cooling-system components and general electronics, factors that influence long-term ownership. Production ended in 2006, yielding to the next generation.