🏷️ Basic Information Identification Make: BMW Model: 7 Series Model Designation: E32 Specific Models Covered: 735iL, 750iL Model Years Covered: 1990-1991 Codes Chassis Code: E32 Engine Codes Likely Covered: M30B35 (735iL), M70B50 (750iL) 👋 Introduction Market Position Target Audience: BMW owners, independent repair shops, automotive technicians specializing in European vehicles. Competitive Analysis Value Proposition: Enables significant cost savings on repairs by empowering DIY diagnostics and repairs, mirroring professional workshop resources. Key Features Usability: Designed for understanding by individuals with basic mechanical knowledge, featuring clear explanations and illustrations. Content Type: Technical information, illustrations, diagrams, and step-by-step procedures. 📋 Manual Details Coverage Areas Overall Coverage: Comprehensive electrical systems troubleshooting and repair for the specified BMW E32 models. Specific Systems Coverage: Power distribution, fuses, ground distribution, engine control, charging, starting, transmission control, supplementary restraint system (SRS), ABS, power mirrors, central locking, power windows, power seats, heated seats, power sunroof, horn, wiper/washer systems, headlight washers, windshield washer jet heaters, instrument cluster, multi-function clock, lighting systems (headlights, fog lights, turn signals, hazard lights, parking/tail/underhood lights, license plate/luggage compartment lights, backup lights, brake lights, interior lights, glove box light, cassette box/ashtray lights, charging socket), crash control module, parking/ventilation (HKR), rear window defogger, climate control, audio systems (radio/CD player, radio/Hi-Fi), cellular telephone, cruise control, anti-theft system, onboard computer, component locations, splice locations, connector views. Page Count Estimated Page Count: Likely 100-300 pages (typical for dedicated electrical troubleshooting manuals). Manual Type Type: Electrical Troubleshooting Manual / Repair Manual Language Language: English (inferred from description, likely originally German for a BMW manual). Format Format: Digital (PDF) or Printed Copy (as suggested by 'what will be send to you'). 📖 Manual Coverage Systems Covered Electrical Systems: All major electrical and electronic systems as detailed in 'specific_systems_coverage'. Procedures Included Troubleshooting Methodology: Step-by-step troubleshooting guides, diagnostic procedures, wiring diagram interpretation. Repair Instructions: Detailed repair steps for electrical components and circuits. Maintenance Procedures: Electrical system checks and basic maintenance tasks. Technical Depth Diagnostic Capability: Advanced diagnostic information, including fault code interpretation (if applicable to the era's systems) and signal tracing. Component Level Detail: Detailed explanations of component functions, operation, and testing. Wiring Diagrams: Inclusion of comprehensive wiring diagrams, power distribution charts, and component location views. 📊 Manual Specifications File Format Digital Quality: Searchable text (ideal for PDF), high-resolution clear diagrams and illustrations. Print Quality Printed Materials: High-quality paper, durable binding (likely perfect binding or spiral for ease of use in a workshop). Binding Type Physical Format: Perfect bound or Spiral bound (for shop use). Paper Type Paper Quality: Durable, likely semi-gloss or matte finish paper suitable for workshop environments. ⚙️ Engine Specifications Primary Engine 735Il Engine: 3.5L Inline-6 SOHC (M30B35) 750Il Engine: 5.0L V12 SOHC (M70B50) Performance 735Il Horsepower: ~208 hp @ 5700 rpm 735Il Torque: ~214 lb-ft @ 4000 rpm 750Il Horsepower: ~295 hp @ 5200 rpm 750Il Torque: ~332 lb-ft @ 3900 rpm Fuel System Fuel Delivery: Bosch Motronic electronic fuel injection (EFI) for both models. 🔧 Transmission Standard 735Il Transmission: 4-speed automatic (e.g., ZF 4HP-22) 750Il Transmission: 4-speed automatic (e.g., ZF 4HP-24) Optional 735Il Transmission Optional: 5-speed manual (less common in North America) Features Electronic Control: Electronic transmission control (ETC) present on automatic transmissions, managed by a dedicated control unit. 📐 Dimensions Exterior Wheelbase 735Il: 117.4 inches (3.0 m) Wheelbase 750Il: 120.1 inches (3.05 m) Weights Curb Weight 735Il: approx. 3,900 lbs (1,769 kg) Curb Weight 750Il: approx. 4,500 lbs (2,041 kg) 🛡️ Safety Features Active Features ABS: Anti-lock Braking System (ABS) standard on both models. Passive Features Airbags: Driver's airbag standard; passenger airbag may have been optional or introduced later in the E32 run. Srs: Supplementary Restraint System (SRS) management for airbags. 💡 Technology Features Infotainment Audio Systems: BMW Bavaria or BMW Professional radio/cassette systems, optional CD player, optional Hi-Fi sound systems. Driver Assistance Cruise Control: Cruise Control ('Tempomat') is a standard feature. Climate Control: Integrated climate regulation, often dual-zone or multi-zone, with automatic temperature control. Connectivity Telephone: Optional integrated cellular telephone system. Onboard Systems Onboard Computer: On-Board Computer (OBC) providing vehicle status, trip data, and diagnostic information. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500-10,000 miles or 12 months (refer to specific owner's manual for exact recommendation). Fluid Specifications Engine Oil 735Il: SAE 15W-40 or 10W-40 API SG or higher (check for specific BMW LL-98 or LL-01 approvals for later models, but for 90-91, SG is typical). Engine Oil 750Il: SAE 15W-50 or 10W-40 API SG or higher (V12 may prefer slightly heavier oil due to its complexity). Transmission Fluid Automatic: Dexron III or equivalent for ZF 4HP-22/24 transmissions. Known Issues Electrical Common Problems: Corrosion in wiring harnesses (especially at connectors), failing ABS sensors and modules, EML (Electronic Throttle Control) issues (if applicable, though less common on these specific models compared to later ones), headlight wiper motor failures, OBC (On-Board Computer) pixel degradation, power seat module...