🏷️ Basic Information Identification Make: BMW Model: 535i / M535i Year: 1985 Codes Chassis Code: E28 Engine Codes: M30B34 (535i), M30B35 (M535i) 👋 Introduction Market Position Positioning: The BMW 535i/M535i (E28) represented the pinnacle of BMW's mid-size luxury sport sedan offering in the mid-1980s, competing with Mercedes-Benz E-Class and Audi models. Competitive Analysis Key Competitors: Mercedes-Benz W124 (300E), Audi 100/200 Quattro, Jaguar XJ6. Key Features Performance Focus: Known for its powerful inline-six engines, refined handling, and driver-oriented cockpit. The M535i offered enhanced performance and styling cues. Manual Purpose Purpose: To provide technicians and owners with the complete information required to diagnose, maintain, and repair the BMW 535i and M535i E28 models. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service, repair, and maintenance for BMW 535i and M535i models. Secondary Coverage: Troubleshooting, diagnostics, technical specifications, wiring diagrams. Page Count Estimated Page Count: Likely 500-800 pages (typical for a comprehensive workshop manual of this era). Manual Type Type: Service and Repair Workshop Manual Language Language: English Format Format: Likely Printed; digital formats (PDF) also common for historical manuals. 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel injection, ignition, exhaust, transmission (manual & automatic). Chassis: Suspension (front & rear), steering, brakes (hydraulic & ABS if equipped), drivetrain (driveshaft, differential). Electrical: Complete wiring diagrams, lighting, instrumentation, accessories, starter, alternator, battery. Body: Body panels, doors, windows, seats, interior trim, HVAC system. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, lubrication. Repair: Engine overhaul, cylinder head, crankshaft, pistons, valve train, fuel system diagnosis & repair, transmission overhaul, brake caliper rebuild, suspension component replacement. Diagnostics: Troubleshooting guides, symptom-based diagnostics, electrical fault finding procedures. Special Tools: Identification and usage of special tools required for specific procedures. Technical Depth Depth: Detailed, professional-level coverage suitable for experienced mechanics and serious DIY enthusiasts. Includes torque specifications, clearances, and diagnostic values. 📊 Manual Specifications File Format Digital Quality: If PDF, expect searchable text and clear image reproduction of diagrams. Scan quality may vary if from an original print. Print Quality Original Print: High-quality paper and printing typical of OEM manuals from the era, featuring detailed line drawings and schematics. Binding Type Original Binding: Typically a sturdy, sewn or glued binding suitable for frequent use in a workshop environment. Paper Type Original Paper: Durable, often matte-finish paper to reduce glare and withstand shop conditions. ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-Cylinder, SOHC (M30 family) Displacement 535I: 3.430 cc (3.4 L) Displacement M535I: 3.453 cc (3.5 L) Performance Horsepower 535I: Approx. 182 hp @ 5400 rpm (varies by market/emission controls) Torque 535I: Approx. 214 lb-ft @ 3600 rpm Horsepower M535I: Approx. 192 hp @ 5400 rpm (varies by market/emission controls) Torque M535I: Approx. 219 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic (depending on specific build date/market) Electronic Fuel Injection Fuel Type: Unleaded premium gasoline (91+ octane recommended) Cooling System Coolant Type: BMW Blue Antifreeze/Coolant or equivalent ethylene glycol-based, silicate-free coolant. Lubrication Oil Type: SAE 20W-50 or 15W-40 (API SF or SG rated) recommended for general use; consult manual for specific temperature ranges. Oil Capacity: Approx. 6.5 liters (6.9 US quarts) with filter change. 🔧 Transmission Standard Transmission Type 535I: Getrag 260 5-speed manual transmission Transmission Type M535I: Getrag 280 5-speed manual transmission (specific for M-Sport) Optional Transmission Type Optional: ZF 4HP22 4-speed automatic transmission Features Transmission Fluid: Dexron II or equivalent for automatic; Manual transmission fluid (MTF) specification in manual. 📐 Dimensions Exterior Length: Approx. 4,620 mm (181.9 in) Width: Approx. 1,700 mm (66.9 in) Height: Approx. 1,415 mm (55.7 in) Weights Curb Weight: Approx. 1,450-1,550 kg (3,197-3,417 lbs) depending on options. Wheelbase: Approx. 2,795 mm (110.0 in) Wheels Tires Wheel Bolt Pattern: 5x120mm Standard Tire Size: 205/70VR14 or 220/55VR390 (Michelin TRX for some models) 🛡️ Safety Features Ratings Crash Testing: No official NHTSA/Euro NCAP ratings from this era. Safety was primarily passive (seatbelts, crumple zones). Active Features ABS: Optional ABS (Anti-lock Braking System) was available on some models. Passive Features Restraints: Three-point inertia-reel seatbelts, front and rear. Optional driver's airbag was not standard for this model year. Construction: Reinforced passenger cell, energy-absorbing steering column, crumple zones front and rear. 💡 Technology Features Infotainment Audio System: Optional premium sound systems, often with cassette player and analog tuning. Climate Control: Manual or optional automatic climate control (ECC - Electronic Climate Control). Driver Assistance Cruise Control: Standard or optional cruise control system. Trip Computer: Basic trip computer functions often integrated into the instrument cluster. Connectivity OBD: No standard OBD-II or advanced electronic diagnostics. Diagnostics rely on early analog systems and manual troubleshooting. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, whichever comes first. Consult manual for specific recommendations. Transmission Fluid Change Auto: Recommended every 30,000-50,000 miles (48,000-80,000 km), or based on driving conditions. Coolant Flush:...