This comprehensive BMW E23 735i 7 Series 1986 Electronic Troubleshooting Manual is designed for technicians, mechanics, and anyone interested in repairing and understanding the intricacies of this classic car. The manual provides in-depth information covering all aspects of the vehicle, mirroring the original manufacturer's specifications. You'll find detailed circuit diagrams, equipment specifications, and technical data, offering a complete guide to troubleshooting and repair. The manual covers a vast range of topics, including: * **General Maintenance:** Learn about routine maintenance procedures to keep your BMW running smoothly. * **Troubleshooting:** Diagnose and resolve a wide array of potential issues encountered with the E23 735i. * **Engine Service / Repair:** Understand the complexities of the engine, including service procedures and repair techniques. * **Transmission Service / Repair:** Gain insights into the transmission system, its operation, and how to perform maintenance and repairs. * **Brake System:** Learn about the braking system, including components, troubleshooting, and repair methods. * **Wiring Diagram:** Navigate the intricate electrical system with comprehensive wiring diagrams. * **Electrical System:** Gain a comprehensive understanding of the electrical system, including components, troubleshooting, and repair. * **Suspension:** Delve into the suspension system, covering components, maintenance, and troubleshooting. * **Periodic Lubrication:** Learn the importance of regular lubrication and how to properly lubricate various components. * **Steering:** Explore the steering system, its operation, and how to diagnose and repair issues. * **Cooling System:** Understand the cooling system, its components, troubleshooting, and repair techniques. * **Fuel Injection:** Explore the fuel injection system, including components, troubleshooting, and repair methods. * **Fuel System:** Gain a comprehensive understanding of the fuel system, its components, and how to troubleshoot and repair issues. * **Emission System:** Learn about the emission control system, its operation, and how to diagnose and repair problems. * **Heater/ Air Conditioning:** Understand the heating and air conditioning system, its components, troubleshooting, and repair techniques. * **Engine Control System:** Dive into the complexities of the engine control system, including diagnostics and repairs. * **Chassis / Body:** Gain insights into the chassis and body structure, including maintenance and repair. * **Restraint System:** Learn about the safety features, including components, diagnostics, and repairs. * **Interior:** Understand the interior components, their operation, and how to repair various issues. * **Differential / Drive:** Explore the differential and drive system, including components, troubleshooting, and repair methods. * **Axle:** Gain insights into the axle system, its components, and how to diagnose and repair issues. This comprehensive manual provides a wealth of information to help you successfully maintain and repair your BMW E23 735i.

The BMW E23 735i, a flagship sedan produced from 1982 to 1986, stands as a testament to the German automaker's commitment to luxury and performance. This second-generation 7 Series model, codenamed E23, pushed the boundaries of automotive engineering with its sophisticated design and advanced technology. Under the hood, the 735i housed a powerful 3.4-liter M30 inline-six engine, delivering a smooth and exhilarating driving experience. Its luxurious interior featured plush leather seats, wood trim, and advanced amenities like power windows, air conditioning, and a premium sound system. The E23 735i's timeless elegance and refined driving experience solidified its position as a symbol of prestige and comfort. Beyond its luxurious attributes, the E23 735i introduced several groundbreaking innovations. It was one of the first vehicles to feature an on-board computer, providing the driver with real-time information about fuel consumption, driving range, and other vital statistics. The car also boasted an advanced electronically controlled suspension system, allowing for a more comfortable and responsive ride. However, the complexity of its electronics also presented challenges for owners, necessitating specialized manuals like the "BMW E23 735i 7 Series 1986 Electronic Troubleshooting Manual" to diagnose and repair any electrical issues. This manual, designed for both experienced mechanics and enthusiastic owners, provides detailed schematics, component descriptions, and troubleshooting procedures, assisting in pinpointing and resolving electrical problems in the E23 735i.