The 1990 BMW 325i, chassis code E30, represents a pinnacle of compact executive and sports sedan engineering from its era. Renowned for its balanced chassis, rear-wheel-drive handling, and driver engagement, this model offers a pure driving experience powered by a smooth and responsive 2.5-liter M20 inline-six engine. Its iconic E30 design, characterized by subtle yet sporting aesthetics, positioned it as a strong competitor against vehicles like the Mercedes-Benz W201 and Audi 80/90. The 325i was celebrated by automotive press for its build quality and performance, solidifying BMW's reputation for engineering excellence.

This comprehensive factory service and repair manual provides detailed information for the maintenance, troubleshooting, and repair of your 1990 BMW 325i. It covers all major systems, including the M20B25 engine, Getrag 5-speed manual and ZF 4-speed automatic transmissions, drivetrain, suspension, steering, brakes, electrical systems, bodywork, and HVAC. With step-by-step repair procedures, diagnostic flowcharts, and complete electrical diagrams, this manual is an essential resource for owners, mechanics, and technicians aiming to maintain the optimal performance and longevity of this classic vehicle.