🏷️ Basic Information Identification Make: BMW Model: 5 Series Model Variants: 535i, M535i Year: 1987 Codes Chassis Code: E28 👋 Introduction Market Position Segment: Executive Sedan / Sports Sedan Positioning: Premium European luxury sport sedan, competing with Mercedes-Benz E-Class and Audi 100/200 Competitive Analysis Key Competitors 1987: Mercedes-Benz W124 E-Class, Audi Quattro Sedan, Volvo 700 Series, Jaguar XJ6 Key Features Driving Dynamics: Renowned for balanced handling, rear-wheel drive, and driver-focused experience Engine Performance: Powerful inline-six engines offering smooth power delivery and excellent torque Build Quality: Exceptional German engineering and build quality, contributing to longevity and refinement 📋 Manual Details Coverage Areas Coverage Scope: Complete official factory service and repair Page Count Estimated Page Count: Hundreds of pages (specific number not provided, but typical for factory manuals of this era) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical, fuel injection (Bosch L-Jetronic/Motronic), ignition, cooling, lubrication, exhaust Transmission Systems: Manual and automatic transmissions, clutch, driveshafts, differentials Chassis Systems: Suspension (front McPherson strut, rear trailing arm/semi-trailing arm), steering, brakes (disc front/rear, ABS on some models), wheels and tires Electrical Systems: Wiring diagrams, lighting, instrumentation, starting and charging system, body electronics, power accessories Body And Interior: Body structure, exterior panels, doors, windows, seats, interior trim, HVAC system Procedures Included Maintenance Procedures: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tune-ups Repair Procedures: Engine overhaul, transmission rebuild, brake system repairs, suspension component replacement, electrical diagnostics and repair Troubleshooting: Diagnostic charts, symptom-based troubleshooting guides, common issue identification Technical Data And Specs: Torque specifications, clearances, fluid capacities, diagnostic values Technical Depth Depth: Comprehensive factory-level detail, suitable for professional technicians and advanced DIYers 📊 Manual Specifications File Format PDF Quality: Likely high-resolution scans of original factory documents, ensuring clarity and readability Print Quality Printable: Designed for full or partial printing by the user Binding Type Binding For Printed Version: N/A (Digital Download - PDF) Paper Type Paper Type For Printed Version: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Engine Code 535I: M30B34 Engine Type 535I: 3.4L SOHC Inline-6 Cylinder Engine Code M535I: M30B34 Engine Type M535I: 3.4L SOHC Inline-6 Cylinder Performance Horsepower 535I: Approximately 182-189 hp @ 5400 rpm (depending on market/catalytic converter) Torque 535I: Approximately 224-230 lb-ft @ 3600 rpm Horsepower M535I: Approximately 218 hp @ 5700 rpm (Euro spec) Torque M535I: Approximately 225 lb-ft @ 4000 rpm (Euro spec) Fuel System Fuel Delivery System: Bosch L-Jetronic or Motronic electronic fuel injection Fuel Type: Unleaded Premium Gasoline (91+ octane) Engine Management ECU Type: Bosch Motronic 🔧 Transmission Standard Transmission 535I: Getrag 260 5-speed manual transmission Transmission M535I: Getrag 280 5-speed manual transmission (often preferred over Getrag 260) Optional Transmission Optional 535I: ZF 4HP22 4-speed automatic transmission Transmission Optional M535I: ZF 4HP22 4-speed automatic transmission Features Clutch Type: Hydraulically actuated single dry plate clutch Rear Axle Ratio Manual: Typically 3.25:1 or 3.46:1, varies by model and market 📐 Dimensions Exterior Length E28: Approximately 188.0 inches (4775 mm) Width E28: Approximately 68.7 inches (1745 mm) Height E28: Approximately 55.1 inches (1400 mm) Wheelbase E28: Approximately 104.5 inches (2654 mm) Weights Curb Weight 535I: Approximately 3500-3700 lbs (1588-1678 kg) Curb Weight M535I: Approximately 3600-3800 lbs (1633-1724 kg) 🛡️ Safety Features Ratings NHTSA Ratings 1987: NHTSA testing data for this era is limited, but generally considered safe for its time Active Features ABS: Anti-lock Braking System (ABS) available as an option on some models Passive Features Airbags: Driver-side airbag not standard on most 1987 E28 models; available on later E28s or optional Seatbelts: 3-point front seatbelts, rear lap belts Body Construction: Unitized body construction with significant crumple zones 💡 Technology Features Infotainment Audio System: Factory cassette player with AM/FM radio, optional CD player on later models Speakers: Typically 4 or 6 speakers, depending on trim level Driver Assistance Cruise Control: Standard on most 535i and M535i models Climate Control: Manual or optional automatic climate control (ECC - Electronic Climate Control) Connectivity Connectivity Features: N/A (no modern connectivity features like Bluetooth or USB) 🔧 Maintenance Service Intervals Oil Change Interval Synthetic: Typically 7,500 - 10,000 miles with synthetic oil Oil Change Interval Conventional: Typically 3,000 - 5,000 miles with conventional oil Spark Plug Replacement: 15,000 - 30,000 miles, depending on plug type (e.g., copper vs. platinum) Timing Belt Replacement: Not applicable (OHC Inline-6 engines use a timing chain) Fluid Specifications Engine Oil Type: SAE 10W-40 or 15W-40, API SG rated or higher (check manual for specific viscosity based on temperature) Coolant Type: Ethylene glycol-based antifreeze with water (typically 50/50 mix) Transmission Fluid Manual: API GL-4 or GL-5 gear oil, SAE 75W-90 Transmission Fluid Automatic: Dexron-III (or equivalent) ATF Brake Fluid Type: DOT 3 or DOT 4 brake fluid Known Issues Common Problems: Cooling system (radiator, hoses, water pump), fuel pump failure, electrical...