🏷️ Basic Information Identification Make: BMW Model: 7 Series Chassis Code: E32 Specific Models Covered: 735i, 735iL, 750iL Years Covered: 1991, 1992 Manual Title: BMW E32 735i 735iL 750iL 7 Series 1991 1992 Electronic Troubleshooting Manual 👋 Introduction Market Position Target Audience: Professional BMW technicians, independent repair shops, and advanced automotive enthusiasts specializing in E32 models. Value Proposition: Provides in-depth electronic diagnostic and troubleshooting expertise specifically for the complex systems of the 1991-1992 BMW E32 7 Series. Competitive Analysis Uniqueness: Focuses specifically on electronic troubleshooting, a critical but often underserviced area for older luxury vehicles. Key Features Diagnostic Focus: Prioritizes fault identification and resolution for electronic control units (ECUs) and related components. Comprehensiveness: Covers a wide array of the vehicle's electronic systems, offering a holistic diagnostic approach. Practicality: Aimed at facilitating efficient and accurate repair of electronic issues, reducing diagnostic time and cost. 📋 Manual Details Coverage Areas Primary Coverage: Electronic Troubleshooting Secondary Coverage: Diagnostic procedures, fault finding, electrical system analysis Page Count Estimated Page Count: Detailed (Exact count not provided in product info, but expected to be extensive for electronic troubleshooting) Manual Type Type: Electronic Troubleshooting Manual Language Language: English Format Format: Electronic (Likely PDF, CD-ROM, or digital download) 📖 Manual Coverage Systems Covered Engine Management: Detailed coverage of DME (Digital Motor Electronics), fuel injection, ignition timing, idle control, emission control systems. Transmission Control: Troubleshooting for automatic transmission control modules (EGS). Chassis Electronics: ABS (Anti-lock Braking System), ASC (Automatic Stability Control), EDC (Electronic Damper Control) diagnostics. Body Electronics: Climate control, central locking, power windows, mirrors, seat adjustment, interior lighting, warning indicators. Instrumentation: Diagnosis of instrument cluster functions, warning lights, and onboard computer (BC). Infotainment And Comfort: Radio, cassette, CD changer, and climate control system fault finding. Lighting System: Headlights, taillights, interior lights, fog lights, and associated control modules. Diagnostics Tools: Information on using BMW diagnostic tools (e.g., GT1, MoDiC) relevant to the E32 generation. Wiring Diagrams: Extensive wiring diagrams for all covered electronic systems. Procedures Included Troubleshooting Methodology: Systematic diagnostic flowcharts and step-by-step troubleshooting procedures for common and rare electronic faults. Component Testing: Procedures for testing sensors, actuators, control modules, and wiring harnesses using multimeters and oscilloscopes. Fault Code Interpretation: Explanation of diagnostic trouble codes (DTCs) and their probable causes. Component Replacement: Guidance on safe and correct removal and installation of electronic components, including control modules. System Reset And Recalibration: Procedures for resetting learned values and recalibrating electronic systems after component replacement. Technical Depth Depth: Advanced diagnostic and repair procedures, suitable for professional technicians and experienced DIYers with electronics knowledge. Diagnostic Tools Reliance: Emphasizes the use of specialized diagnostic equipment alongside manual testing methods. 📊 Manual Specifications File Format File Type: Likely PDF (Portable Document Format) Searchability: Expected to have searchable text for quick access to information. Printability: Designed for printing individual pages or sections as needed. Print Quality Visuals: High-quality diagrams, schematics, and illustrations. Binding Type Binding: Not applicable for electronic format; if printed, typically spiral-bound or comb-bound for lay-flat usability. Paper Type Paper Quality: Not applicable for electronic format; if printed, typically high-quality, durable paper. ⚙️ Engine Specifications Primary Engine 735I 735Il Engine Code: M30B35 Engine Type: SOHC Inline-6 (Gasoline) Displacement: 3.5 Liters (3430 cc) Bore X Stroke: 92 mm x 86 mm Compression Ratio: 8.0:1 (Typically) Horsepower: 208 hp @ 5700 rpm (Approx.) Torque: 224 lb-ft @ 4000 rpm (Approx.) Fuel System: Bosch Motronic ML-S (Electronic Fuel Injection with Engine Management) Ignition System: Distributorless ignition system with individual spark coils (later M30 variations). Emissions Control: Catalytic converter, EGR (Exhaust Gas Recirculation) system, Lambda sensor. Primary Engine 750Il Engine Code: M70B50 Engine Type: SOHC V12 (Gasoline) Displacement: 5.0 Liters (4988 cc) Bore X Stroke: 84 mm x 75 mm Compression Ratio: 8.8:1 (Typically) Horsepower: 296 hp @ 5200 rpm (Approx.) Torque: 332 lb-ft @ 3900 rpm (Approx.) Fuel System: Bosch Motronic M7.1 (Dual DME systems for V12 operation) Ignition System: Dual ignition system with two spark plugs per cylinder, controlled by two DME units. Emissions Control: Catalytic converters, Lambda sensors (multiple), EGR. 🔧 Transmission 735I 735Il Standard Transmission: 4-speed Automatic (ZF 4HP22 EH - Electronic Control) Optional Transmission: 5-speed Manual (Getrag 265/5 - Less Common) Transmission Fluid Type: BMW ATF LT3 (or equivalent such as Dexron III/Mercon) 750Il Standard Transmission: 4-speed Automatic (ZF 4HP24 EH - Electronic Control) Optional Transmission: None (Exclusively Automatic) Transmission Fluid Type: BMW ATF LT3 (or equivalent such as Dexron III/Mercon) General Features Electronic Control: Both automatic transmissions feature electronic control for smoother shifting and optimal performance. Sport Mode: Available Sport mode for more aggressive shifting points. 📐 Dimensions 735I Wheelbase: 2,830 mm (111.4 in) Length: 4,965 mm (195.5 in) Width: 1,855 mm (73.0 in) Height: 1,400 mm (55.1 in) 735Il Wheelbase: 3,070 mm (120.9 in) Length: 5,205 mm (204.9 in) Width: 1,855 mm (73.0 in) Height: 1,400 mm (55.1 in) 750Il Wheelbase:...