This manual covers the BMW 733i and 735i models, chassis code E23, produced between 1983 and 1987. These luxury sedans, powered by the robust M30 inline-six engine in 3.2L (733i) and 3.4L (735i) configurations, represented BMW's commitment to performance and advanced engineering. Known for their refined driving dynamics and high-quality construction, these vehicles were designed for discerning drivers and competed with other premium marques of the era. Notable features included Bosch Motronic fuel injection, available automatic climate control, and optional Anti-lock Braking System (ABS).

This comprehensive service and repair workshop manual provides detailed guidance on all aspects of mechanical, electrical, and bodywork maintenance and repair. It covers essential procedures such as routine maintenance, major repairs, and diagnostic troubleshooting for key systems including the engine, transmissions (manual and automatic), fuel, ignition, cooling, braking, suspension, and electrical systems. With over 800 pages of information, this English-language manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, diagnose, and repair their E23 BMW, ensuring optimal performance and longevity.