🏷️ Basic Information Identification Make: BMW Model: 5 Series (E34) Model Variant: 525i, 535i Years Covered: 1988-1989 Generation Chassis Code: E34 Codes Manual Product Code: # QUALITY (#❶ QUALITY!) 👋 Introduction Market Position Target Audience: Garage owners, service repairers, MOT testers, Parts advisers, Collectors, Enthusiasts. Competitive Analysis Value Proposition: Cost-effective, complete, and intact service manual identical to those used in local repair shops. Key Features Completeness: COMPLETE and INTACT with no missing/corrupt parts or pages. Accessibility: Instant download, no shipping costs, no waiting for CD-ROM. User Friendliness: Easy-to-install, readable, printable, with easily found pages by category and expandable detail. 📋 Manual Details Coverage Areas Primary Coverage: Electrical Troubleshooting Secondary Coverage: Service, Maintenance Page Count Total Pages: 3640 Manual Type Type: Electrical Troubleshooting Manual (ETM) Language Language: English Format Primary Format: PDF Compression Format: ZIP 📖 Manual Coverage Systems Covered Electrical System: Comprehensive coverage of all electrical systems. Wiring Diagrams: Detailed wiring diagrams included. Engine Electrical: Ignition system, fuel injection system, engine lubrication and cooling electrical components. Drivetrain Electrical: Gearbox & Clutch electrical controls, electric starter, alternator/starter clutch. Chassis Electrical: Braking system electrical components, suspension system electrical controls, wheels & tyres electrical sensors, steering system electrical components. Body Electrical: Lights, meters, switches, body & fixtures electrical components, frame/body panels/exhaust system electrical interfaces. Comfort Systems: Climate control, power accessories, interior lighting. Procedures Included Troubleshooting: Extensive troubleshooting guides for electrical faults, including diagnostics. Maintenance: Periodic checks and adjustments related to electrical systems, general vehicle maintenance. Repair: Disassembling, inspecting, and assembling instructions for electrical components. Diagnostics: Fault code diagnostics, specific diagnostic procedures. Calibration: Resetting of service light indicators. Technical Depth Depth: Professional-level detail, equivalent to shop manuals. Diagnostic Tools: Information applicable to using standard automotive diagnostic tools for electrical issues. 📊 Manual Specifications File Format PDF Quality: High quality, readable, and printable. Searchable: Likely searchable PDF content for efficient information retrieval. Print Quality Printability: Printable pages. Binding Type Binding: N/A (Digital PDF format) Paper Type Paper: N/A (Digital PDF format) Os Compatibility Windows: Win95/98/ME/XP/vista/7 (and implied backward/forward compatibility with Win8 and newer) Mac: MAC (OS X and later) Linux: Linux Activation Activation Requirements: No activation codes, encryptions, or passwords. ⚙️ Engine Specifications Primary Engine Engine Options: M20B25 (525i), M30B35 (535i) Engine Displacement 525I: 2.5 Liters (2494 cc) Engine Displacement 535I: 3.5 Liters (3430 cc) Performance Horsepower 525I Approx: 170 hp @ 5800 rpm (DIN) Torque 525I Approx: 225 Nm (166 lb-ft) @ 4300 rpm (DIN) Horsepower 535I Approx: 208 hp @ 5700 rpm (DIN) Torque 535I Approx: 305 Nm (225 lb-ft) @ 4200 rpm (DIN) Fuel System Fuel Injection Type: Bosch Motronic (specific version varies by engine and market) Fuel Type: Unleaded gasoline 🔧 Transmission Standard Transmission Type 525I: 5-speed manual (Getrag 260) Transmission Type 535I: 5-speed manual (Getrag 260) Optional Transmission Type 525I Optional: 4-speed automatic (ZF 4HP22) Transmission Type 535I Optional: 4-speed automatic (ZF 4HP22) Features Clutch Type: Hydraulically actuated single dry plate clutch 📐 Dimensions Exterior Length Approx: 4720 mm (185.8 in) Width Approx: 1751 mm (68.9 in) Height Approx: 1412 mm (55.6 in) Weights Curb Weight 525I Approx: 1500-1570 kg (3307-3461 lbs) Curb Weight 535I Approx: 1590-1670 kg (3505-3682 lbs) 🛡️ Safety Features Ratings Crash Test Era Context: Vehicles of this era were tested under different standards than modern vehicles. Active Features Brakes Front: Vented disc brakes Brakes Rear: Disc brakes ABS: Anti-lock Braking System (ABS) standard on most models/markets. Passive Features Airbags: Driver's side airbag optional or standard depending on market and production date. Seatbelts: Front and rear seat belts. 💡 Technology Features Infotainment Audio System: Factory premium sound systems with cassette player, optional CD changer in trunk. Navigation: Early generation factory navigation systems available on some higher-trim models, typically monochrome CRT displays. Driver Assistance Cruise Control: Standard or optional cruise control system. Climate Control: Manual or automatic climate control systems. 🔧 Maintenance Service Intervals Oil Change Interval Typical: Approximately 10,000-15,000 km (6,000-10,000 miles) or 12 months. Spark Plug Interval: Varies by plug type; often 40,000-80,000 km (25,000-50,000 miles). Fluid Specifications Engine Oil Type 525I: API SG or SH, SAE 15W-40 or 10W-40 (check manual for specific viscosity based on climate). Engine Oil Type 535I: API SG or SH, SAE 15W-40 or 10W-40 (check manual for specific viscosity based on climate). Coolant Type: Ethylene glycol based antifreeze with corrosion inhibitors (e.g., BMW Coolant). Transmission Fluid Manual: API GL-4 or GL-5, SAE 75W-90 or 80W-90 (specific BMW part number recommended). Transmission Fluid Automatic: ATF Dexron II or equivalent (specific BMW part number recommended). Brake Fluid Type: DOT 3 or DOT 4. Known Issues E34 Common Electrical Issues: Failing alternator, starter motor issues, wiring harness degradation (especially engine bay), instrument cluster illumination/functionality, central locking system problems, fuel pump relay failures. E34 Common Mechanical Issues: Cooling system leaks (radiator, hoses, water pump), head gasket leaks, seized heater control valve, worn suspension bushings,...