🏷️ Basic Information Identification Make: BMW Model: 5 Series (E34) & 7 Series (E32) Product Type: Electrical Troubleshooting Manual (ETM) Codes Model Code E34: E34 Model Code E32: E32 👋 Introduction Market Position Target Audience: BMW owners of E34 5 Series and E32 7 Series models experiencing electrical problems, professional auto mechanics, and vintage BMW enthusiasts. Competitive Analysis Value Proposition: Provides access to the official BMW ETM, essential for accurate diagnosis and repair, which is often difficult to find or prohibitively expensive in physical form. Key Features Ease Of Use: Designed for easy navigation and viewing on digital devices. Diagnostic Focus: Specifically tailored for troubleshooting electrical faults, making it a critical tool for diagnosing issues beyond basic maintenance. 📋 Manual Details Coverage Areas Primary Coverage: Electrical systems and troubleshooting Specific Systems Covered: Engine management, fuel injection, ignition, lighting, HVAC controls, instrumentation, power windows, central locking, ABS, airbags, audio systems, and all other electronic modules and circuits. Page Count Estimated Page Count: Likely exceeds 300 pages (typical for ETMs of this era). Manual Type Type: Electrical Troubleshooting Manual (ETM) / Wiring Diagram Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Power Distribution: Detailed circuit diagrams for fuses, relays, and power distribution modules. Lighting Systems: Headlights, taillights, interior lighting, fog lights, and related control circuits. Engine Control: Bosch Motronic (various versions), fuel injectors, ignition coils, sensors (e.g., MAF, O2, Crankshaft Position), ECU pinouts, and diagnostic connector information. Transmission Control: Wiring for automatic transmission control modules and sensors. Comfort Systems: Power windows, mirrors, seats, sunroof, central locking, climate control (manual and automatic), cruise control, and interior electronics. Safety Systems: ABS (Anti-lock Braking System), ASC (Automatic Stability Control)/DSC (Dynamic Stability Control) where applicable, airbag systems, and associated sensors and control units. Instrumentation: Instrument cluster operation, warning lights, gauges, and onboard computer (check control panel) wiring. Audio And Telematics: Radio wiring, speaker connections, antenna systems, and potentially early navigation or communication systems. Procedures Included Troubleshooting Methodology: Step-by-step diagnostic procedures for common and complex electrical faults, including symptom-based troubleshooting. Wiring Diagrams: Comprehensive and layered wiring diagrams illustrating component connections, wire routing, and pin assignments. Component Locations: Diagrams and descriptions identifying the location of electrical components, modules, relays, and fuses. Connector Information: Detailed views of electrical connectors, pinouts, and terminal identification. Test Procedures: Specific testing procedures for sensors, actuators, and control modules, often including expected voltage and resistance readings. Schematic Interpretation: Guidance on how to read and interpret the complex electrical schematics. Technical Depth Depth Level: Advanced diagnostics and repair for complex electrical issues, suitable for professional technicians and experienced DIYers. Diagnostic Tools: Information implicitly supports the use of multimeters, oscilloscopes, and diagnostic scan tools relevant to the era. 📊 Manual Specifications File Format Compatibility: Viewable on any device with a PDF reader (PC, Mac, tablet, smartphone). Searchability: Typically features searchable text for quick information retrieval. Print Quality Digital Quality: High-resolution digital reproduction of original technical documentation. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine E34 Engine Variants: 525i (M20B25, later M50B25), 530i (M30B30), 535i (M30B35), 540i (M60B40), M5 (S38B36, S38B38). E32 Engine Variants: 730i (M30B30), 735i (M30B35), 740i (M60B40), 750iL (M70B50). Performance Typical Horsepower Range: 170 hp to 310 hp (depending on engine and model). Typical Torque Range: 200 lb-ft to 350 lb-ft (depending on engine and model). Fuel System Injection System: Bosch Motronic fuel injection (various generations, e.g., Motronic 1.3, 1.5, 2.1, 2.5, 2.7, 2.8, 3.1, 3.3). 🔧 Transmission Standard E34 Transmission: Getrag 260 5-speed manual (on many models). Optional E34 Transmission: ZF 4HP22 4-speed automatic, ZF 5HP30 5-speed automatic (on later M60 models). E32 Transmission: ZF 4HP22 4-speed automatic, ZF 5HP30 5-speed automatic (740i, 750iL). Features Transmission Control: Electronic control for automatic transmissions, managed by the transmission control unit (TCU). 📐 Dimensions Exterior E34 Dimensions: Length: ~188-191 in, Width: ~70 in, Height: ~56-57 in. E32 Dimensions: Length: ~196-204 in, Width: ~72 in, Height: ~57-58 in. Weights E34 Curb Weight: 3400-3800 lbs (approximate). E32 Curb Weight: 3700-4400 lbs (approximate). 🛡️ Safety Features Ratings Fiftystar Impact Test Results: While specific NHTSA ratings for this era are less detailed than modern standards, these vehicles were built to high safety standards for their time. Active Features ABS: Standard or optional on most models, with detailed system wiring in the ETM. Asc: Available on many E34 and E32 models, managing wheelspin. Passive Features Airbags: Driver's side airbag standard on later models, optional on earlier; passenger airbag optional or standard on higher trims/later models. ETM covers airbag system wiring. Seatbelts: Pre-tensioners for front seatbelts on many models. 💡 Technology Features Infotainment Audio Systems: BMW Bavaria C Business/Professional radio units, often with cassette players. ETM details their wiring for power, speakers, and antenna. Driver Assistance Cruise Control: Electronic cruise control systems integral to engine management...