This comprehensive service and repair manual is your complete guide to maintaining and repairing your BMW 5-Series (E34) 520i, covering models from 1988 to 1991. The manual provides detailed, step-by-step instructions and exploded diagrams to ensure even the most complex repairs are achievable.

The manual covers all aspects of vehicle maintenance, starting with a detailed maintenance schedule to help you keep your car in peak condition. You'll also find in-depth information on:

* **Engine**: Learn how to diagnose and repair engine issues, covering everything from basic tune-ups to complex engine rebuilds.
* **Engine Electrics**: This section covers the electrical systems within your engine, from ignition and fuel injection to starting and charging systems.
* **Fuel System**: From fuel tanks and lines to fuel preparation and control systems, this section offers a detailed understanding of the entire fuel system.
* **Exhaust System**: Learn the intricacies of your exhaust system and how to maintain its functionality.
* **Transmission and Clutch**: This section covers both manual and automatic transmissions, and includes detailed information on clutch repair and adjustments.
* **Front Fork and Steering**: This section delves into the intricacies of steering and suspension systems, including repairs and adjustments.
* **Rear Wheel Drive**: Comprehensive information on the rear wheel drive system, providing guidance on repairs and maintenance.
* **Brakes**: Learn about brake system components, diagnosis, and repair techniques.
* **Wheels and Tires**: This section covers wheel maintenance, tire replacement, and balancing.
* **Frame and Body**: Learn about frame and body repairs, including rust removal and repair procedures.
* **Equipment**: This section covers the vehicle's equipment, such as air conditioning, heating, and audio systems.
* **Seats**: Learn how to maintain and repair your vehicle seats.
* **General Electrical Systems**: This section covers the electrical systems in your car, including lighting, instruments, and accessories.
* **Instruments**: Understanding and troubleshooting the instrument panel.
* **Lights**: This section covers repairs and adjustments to the vehicle's lighting system.

This manual also includes a troubleshooting section, designed to help you diagnose and solve common problems with your BMW 5-Series. With this manual, you'll have the complete information you need to keep your vehicle running smoothly for years to come.

The BMW 5-Series (E34) 520i, produced from 1988 to 1991, marked a significant chapter in the evolution of BMW's mid-size luxury sedan. It built upon the success of its predecessor, the E28, while introducing a host of advancements in both styling and engineering. The E34 520i boasted a more aerodynamic profile, characterized by a prominent grille, sharper lines, and a more rounded rear end, giving it a sophisticated and modern aesthetic. Under the hood, the 520i was powered by a 2.0-liter naturally aspirated inline-four engine, producing 129 horsepower and 127 lb-ft of torque. This engine, mated to a 5-speed manual or a 4-speed automatic transmission, delivered a blend of smooth performance and fuel efficiency, making it a practical choice for daily driving.

Beyond the engine, the E34 520i offered several key features that cemented its reputation as a high-quality luxury car. These included a refined interior with high-quality materials, a spacious cabin, and a comprehensive suite of comfort and convenience features. Notably, the E34 520i was the first 5-Series to offer an optional anti-lock braking system (ABS), further enhancing safety and driver confidence. The combination of its stylish design, capable performance, and sophisticated features made the E34 520i a highly sought-after model, further solidifying BMW’s position as a leading manufacturer of luxury automobiles. Today, the E34 520i remains a classic example of German engineering, appreciated for its timeless design, enduring reliability, and the driving experience it offers.