The BMW 323 / 323i, designated by the E21 chassis code, represents a significant era in compact executive sedan engineering, produced from 1975 through 1984. This model was celebrated for its rear-wheel drive platform, balanced chassis, and a refined inline 6-cylinder, 2.3-liter M20 engine, delivering approximately 143 horsepower. Known for its driver-focused interior, premium build quality, and sporty handling, the 323i competed effectively in its segment, embodying BMW's commitment to performance and driving pleasure. Its design introduced signature BMW styling cues, cementing its place as a desirable modern classic.

This comprehensive workshop service repair manual provides detailed information for the BMW 323 / 323i (E21). It covers essential maintenance procedures, including oil changes and fluid checks, alongside in-depth repair and overhaul instructions for all major vehicle systems. Topics include engine mechanicals, fuel injection, transmission, suspension, steering, braking, and electrical systems. Diagnostic procedures and technical specifications are also included, offering a complete resource for owners and technicians to maintain, troubleshoot, and repair these vehicles, ensuring their longevity and optimal performance.