This manual covers the BMW 3 Series, specifically the 325i and 325is models from 1986, chassis code E30, powered by the M20B25 engine. Renowned for its exceptional driving dynamics and build quality, the E30 3 Series established BMW's reputation in the compact luxury sports sedan and coupe segment. These vehicles are celebrated for their engaging handling and driver-focused engineering, making them a favorite among enthusiasts seeking a pure driving experience. This generation of BMW represents a significant achievement in automotive design and performance for its era.

This comprehensive service repair manual provides detailed information essential for the maintenance, repair, and restoration of your 1986 BMW 3 Series. It covers all major systems, including engine mechanicals and electrical components, fuel, transmission, brakes, suspension, steering, and the complete electrical system. You will find in-depth procedures for basic maintenance, intermediate, and advanced repairs, along with troubleshooting guides and critical technical specifications. This manual is an indispensable resource for owners and technicians aiming to preserve the performance and longevity of these classic vehicles.