🏷️ Basic Information Identification Make: BMW Model: 5 Series (E34) Model Variants Covered: 525i, 535i, M5 Model Years Covered: 1990, 1991 👋 Introduction Market Position Target Audience: Technicians, Mechanics, DIY Enthusiasts Key Features Accuracy: Official factory complete information, technical data preserved as original Completeness: Hundreds or thousands of pages, comprehensive coverage of electronic troubleshooting and repair Value Proposition Benefit 1: Low price Benefit 2: Great quality Benefit 3: Instant access Benefit 4: Customer support for download/content issues 📋 Manual Details Coverage Manual Title: BMW E34 525i 535i M5 5 Series 1990 1991 Electronic Troubleshooting Manual Manual Type: Electronic Troubleshooting & Service Repair Manual Language: English Format: PDF (printable) Delivery Method: Instant Download Requirements: Adobe PDF Reader, WinZip 📖 Manual Coverage Systems General Maintenance: Included Troubleshooting Diagnostics: Comprehensive Electronic Troubleshooting Engine Service Repair: Detailed Procedures Transmission Service Repair: Detailed Procedures Brake System: Coverage Included Wiring Diagrams: Extensive Electrical Schematics Electrical System: In-depth coverage Suspension: Coverage Included Periodic Lubrication: Included Steering System: Coverage Included Cooling System: Coverage Included Fuel Injection System: Detailed Diagnostics and Repair Fuel System: Coverage Included Emission Control System: Coverage Included HVAC System: Heater/Air Conditioning Troubleshooting and Repair Engine Control System: Detailed Electronic Control Unit (ECU) information Chassis Body: Coverage Included Restraint System: Safety Systems Coverage Interior Components: Coverage Included Differential Drive Axle: Coverage Included Procedures Diagnostic Procedures: Systematic troubleshooting guides, fault code interpretation Repair Procedures: Step-by-step instructions for various component repairs Maintenance Procedures: Scheduled maintenance tasks, fluid changes, filter replacements Wiring Troubleshooting: Identification of circuit faults, connector diagnostics Technical Depth Depth: Factory-level technical data, circuits, diagrams, equipment specifications 📊 Manual Specifications File Details File Format: PDF Print Quality: High Quality, Printable Searchability: Implied Searchable PDF content Binding Type: Digital Download (not physically bound) Paper Type: Digital (not applicable) ⚙️ Engine Specifications Variants Covered Engine Variants: M20B25 (525i), M30B35 (535i), S38B36 (M5) 525I Engine Code: M20B25 Engine Type: 2.5L Inline 6-cylinder Horsepower Approx: 168 hp @ 5800 rpm Torque Approx: 164 lb-ft @ 4300 rpm 535I Engine Code: M30B35 Engine Type: 3.5L Inline 6-cylinder Horsepower Approx: 208 hp @ 5700 rpm Torque Approx: 225 lb-ft @ 4000 rpm M5 Engine Code: S38B36 Engine Type: 3.6L Inline 6-cylinder Horsepower Approx: 310 hp @ 6900 rpm Torque Approx: 265 lb-ft @ 4750 rpm Fuel System Type: Electronic Fuel Injection (Bosch Motronic) 🔧 Transmission Variants Covered Transmission Types: Manual and Automatic Transmissions Features Transmission Options: 5-speed manual, 4-speed automatic (ZF) 📐 Dimensions General Chassis Code: E34 Weights Curb Weight Approx Kg: 1550-1750 kg (model dependent) 🛡️ Safety Features Features Passive Safety: Front airbags (driver and passenger), ABS (Anti-lock Braking System), Crumple zones Active Safety: ABS, Limited Slip Differential (optional/standard on M5) 💡 Technology Features Engine Management ECU: Bosch Motronic electronic engine management system Features Comfort Features: Automatic climate control (optional/standard on some models), power windows, central locking, cruise control Infotainment Audio System: Factory AM/FM stereo with cassette player (options for CD changer) 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific interval (typically 7,500-15,000 miles or 12-24 months) Fluid Specifications Engine Oil Type: Refer to manual for specific viscosity (e.g., 5W-30, 10W-40 synthetic) Coolant Type: Ethylene Glycol-based coolant, typically a BMW blue or green coolant Transmission Fluid Type Auto: Refer to manual for specific ATF type (e.g., Dexron II) Transmission Fluid Type Manual: Refer to manual for specific gear oil specification Known Issues Common Problems: Cooling system (radiator, water pump, hoses), Oil leaks (valve cover gasket, oil pan gasket), Fuel pump failure, ABS sensor issues, Idle control valve problems, Heater control valve failure Checklist Items Typical Checks: Belts, hoses, fluid levels, brake pads/rotors, tire pressure, exhaust system condition 📚 Vehicle History Model Evolution Generation: Second generation of the BMW 5 Series Production Period Years: 1987-1996 (E34 platform) Brand Heritage Bmw Philosophy: Focus on driving dynamics, performance, and build quality