The BMW 5-Series (E28) 518i 1985-1988 Service Repair Manual is a comprehensive guide for maintaining and repairing your vehicle. This official factory manual provides detailed instructions and high-quality diagrams to help you perform repairs and service procedures accurately and efficiently. The manual covers a wide range of topics, including: * **General Information:** Learn about your BMW 5-Series (E28) 518i, including its specifications, safety precautions, and general maintenance tips. * **Periodic Maintenance:** This section outlines regular service schedules, recommended fluids and lubricants, and step-by-step instructions for performing routine maintenance tasks. * **Engine:** Dive into the intricacies of your engine, with detailed information on components, operation, diagnosis, and repair procedures, including overhauls. * **Fuel System and Throttle Body:** Understand the workings of your fuel system, covering fuel injection, fuel lines, fuel pump, and throttle body adjustments. * **Cooling and Lubrication System:** Get comprehensive information on the cooling system, including the radiator, thermostat, water pump, and cooling fan. The manual also covers the lubrication system, including oil changes, oil filter replacement, and lubrication points. * **Chassis:** Detailed information on the chassis, including suspension systems, brakes, steering, and wheels. You'll find guidance on diagnostics, adjustments, and replacement procedures. * **Electrical System:** This section covers the electrical system of your vehicle, including wiring diagrams, battery maintenance, starter, alternator, and lighting systems. * **Servicing Information:** Locate specific information related to servicing your vehicle, such as torque specifications, component identification guides, and special tools. * **Emission Control Information:** Learn about the emission control system of your BMW, including components, operation, and diagnostics. * **Wiring Diagrams:** The manual includes detailed wiring diagrams to help you troubleshoot electrical problems and understand the flow of electrical current within your vehicle. This service repair manual is a valuable resource for both experienced mechanics and DIY enthusiasts. Its comprehensive content and clear instructions empower users to confidently address a wide range of maintenance and repair needs.

The BMW 5-Series (E28) 518i, produced from 1985 to 1988, marked a significant milestone in the evolution of the iconic Bavarian marque. This model, while sharing the same elegant, sophisticated design language as its more powerful siblings, offered a more accessible entry point into the world of BMW luxury and performance. The 518i was powered by a 1.8-liter four-cylinder engine, a departure from the six-cylinder engines typically associated with the 5-Series. This smaller engine was intended to offer a more fuel-efficient option while still providing a satisfying driving experience, particularly for those who prioritized economy and maneuverability over outright power. Despite its smaller displacement, the 518i retained the characteristic BMW handling and roadholding, thanks to a robust chassis and a well-tuned suspension system. The 518i offered a level of comfort and refinement that was unprecedented in its class. Its interior featured high-quality materials, comfortable seating, and sound insulation that ensured a relaxed and enjoyable journey. The 518i also came equipped with a comprehensive suite of features, including power windows, power steering, and a sophisticated audio system. Though its performance was modest compared to its six-cylinder counterparts, the 518i was a refined and capable car that possessed the hallmark BMW attributes of driving pleasure and longevity. It offered a compelling alternative for those seeking a more economical yet still stylish and accomplished driving experience. While not as widely recognized as its larger-engined siblings, the 518i holds a special place in BMW history as a testament to the brand's commitment to offering a diverse range of models to cater to different driver needs and preferences.