This comprehensive repair manual provides detailed instructions and technical information for all your electrical repairs on your BMW 735i-Il 750Il (e32) model produced between September 1990 and August 1991. The manual, which is identical to the one used by professional mechanics, offers a wealth of information that will save you money and empower you to maintain your vehicle effectively.

You'll find everything you need to get your car running in top condition, from understanding basic electrical systems to tackling complex repairs. The manual is packed with detailed illustrations, diagrams, technical specifications, and step-by-step explanations that make even the most challenging tasks easy to follow. Even if you are not a seasoned mechanic, the manual's clear and concise instructions will guide you through each repair safely and efficiently.

The extensive coverage includes detailed sections on the following systems:

* **Engine Control System:** This section delves into the intricacies of the engine's electronic control system, including troubleshooting and repair procedures.
* **Charging System:** Learn all about the charging system components, diagnosis, and repair techniques to keep your battery healthy and your car running smoothly.
* **Start System:** Understand the intricacies of your car's starting system, including troubleshooting and repair methods to ensure reliable starts every time.
* **Electronic Transmission Control:** This section provides detailed information on the electronic transmission control system, including diagnostics and repair procedures.
* **Supplemental Restraint System:** Learn how to safely repair and maintain your car's airbag system.
* **Slip Control ABS:** This section covers the Anti-lock Braking System, including diagnostics and repair techniques.
* **Power Mirrors, Central Locking Module, Power Windows, Power Seats, Heated Seats, Power Sunroof, Horn, Wiperwasher Module, Headlight Washer, Windshield Washer Jet Heaters:** These sections cover the operation and repair of various comfort and convenience features.
* **Instrument Cluster, Multifunction Clock, Light Switch Details, Headlights/Fog Lights, Turnhazard Lights, Park/Tail/Underhood Lights, License Plate/Luggage Compartment Lights, Back Up Lights, Brake Lights, Interior Lights, Glove Box Light/Cassette Box Ashtry Lights/Charging Socket, Crash Control Module, Park, Ventilation with HKR, Rear Window Defogger:** This section covers the operation and repair of various lighting and interior comfort features.
* **Integrated Climate Regulation, Radio/CD Player, Radio/Hifi, Cellular Telephone, Cruise Control Tempomat, Anti-theft System, On-board Computer, Component Location Chart, Component Location Views, Splice Location Views, Connector Views:** This section covers the operation and repair of various comfort and entertainment features.

With this manual, you'll have the knowledge and confidence to keep your BMW 735i-Il 750Il (e32) running smoothly and reliably for years to come.

The BMW 735i-Il and 750Il, both part of the E32 generation, were flagship luxury sedans produced by BMW from 1986 to 1994. These models represented the pinnacle of BMW's engineering and luxury, with advanced features and technology for their time. The 735i-Il was powered by a 3.5-liter inline-six engine, while the 750Il boasted a 5.0-liter V12, offering impressive performance for the era. Both models were known for their spacious interiors, luxurious appointments, and advanced handling characteristics. The E32 series was the first generation of the 7 Series to feature a fully independent suspension system, which provided superior ride comfort and handling.

Despite the advanced design and engineering, the E32 model was not without its electrical quirks. The complexity of the electrical system, coupled with the age of the vehicles, often resulted in various electrical issues. These can range from minor annoyances like malfunctioning lights or instrument cluster errors to more serious problems such as intermittent engine starting or complete electrical failure. Addressing these issues can be complex and require a deep understanding of the vehicle's electrical architecture. This guide aims to provide a detailed introduction to the electrical troubleshooting process for the BMW 735i-Il and 750Il (E32), covering common electrical faults, diagnostic procedures, and potential solutions.