This comprehensive electrical troubleshooting manual delves into the intricate workings of the BMW 850i (E31) produced between July 1992 and August 1993. The manual provides a detailed roadmap for diagnosing and resolving electrical issues within this prestigious vehicle. It starts with a clear introduction, outlining the symbols used throughout the manual and offering a power distribution chart. A comprehensive fuse chart details each fuse's location and purpose, followed by a detailed explanation of power distribution, ground distribution, and the data link.

The manual dives deep into specific systems like the engine control system, charging system, and starting system. It covers the electronic transmission control, the supplemental restraint system, and the slip control ABS. Furthermore, it delves into the workings of power mirrors, central locking modules, power windows, power seats, heated seats, power sunroofs, horns, and wiper/washer modules.

The manual also addresses the headlights and fog lights, turn hazard lights, parking lights, tail lights, underhood lights, license plate and luggage compartment lights, backup lights, brake lights, interior lights, glovebox lights, cassette box lights, ashtray lights, and charging socket. Additionally, it includes sections on the crash control module, parking and ventilation systems, rear window defogger, integrated climate regulation, radio and CD player, radio/hifi, cellular telephones, cruise control, anti-theft systems, and the on-board computer.

To further enhance troubleshooting, the manual includes component location charts, detailed component location views, splice location views, and connector views. This comprehensive resource equips you with the knowledge and tools to effectively troubleshoot and resolve electrical issues within your BMW 850i (E31) manufactured from July 1992 to August 1993.

The BMW 850i (E31) was a luxurious grand tourer produced by BMW from 1990 to 1999. The 1992-1993 model year saw the 850i continue its reputation for refined performance and opulent design. This generation of the 8 Series featured a powerful 5.0-liter V12 engine, producing 322 horsepower and 369 lb-ft of torque. The engine was mated to a 5-speed automatic transmission, and the car boasted a top speed of over 155 mph. Its advanced technology for the time included an electronically controlled suspension, anti-lock brakes, and traction control. The E31 850i incorporated a distinctive, sleek design with a long hood, flowing lines, and a low-slung profile. The interior was equally luxurious, featuring leather upholstery, wood trim, and a comprehensive suite of amenities. Its spacious cabin offered a comfortable and refined driving experience. The 1992-1993 850i was a true embodiment of the ultimate driving machine philosophy, combining performance, luxury, and innovative engineering.

However, like any complex machine, the 850i's electronics could present challenges. Understanding the workings of the electrical system is crucial for maintaining this sophisticated vehicle. The specific needs of the 1992-1993 850i are addressed in the "BMW 850i (E31) 1992-1993 Electrical Troubleshooting Manual." This manual serves as a comprehensive guide for diagnosing and resolving electrical issues. It contains detailed wiring diagrams, component descriptions, and troubleshooting procedures, enabling technicians to identify and rectify problems efficiently. From basic electrical checks to complex system analysis, the manual provides step-by-step instructions and essential information. By leveraging this valuable resource, automotive professionals can ensure the smooth operation of the 850i's electrical system, preserving its performance and luxury for years to come.