🏷️ Basic Information Identification Make: BMW Model: 535i Year: 1991 Chassis Code: E34 Product Type: Factory Service Repair Manual 👋 Introduction Market Position Vehicle Class: Executive Sedan / Luxury Mid-Size Sedan Competitive Analysis Competitors 1991: Mercedes-Benz W124 E-Class, Audi V8 Quattro, Lexus LS 400, Cadillac DeVille Key Features Bmw Philosophy: Sporty handling, driver-focused interior, refined engineering 📋 Manual Details Coverage Areas Primary Coverage: Complete Factory Service and Repair Page Count Estimated Pages: Hundreds (exact count not specified, but described as 'COMPLETE') Manual Type Type: Service Manual / Workshop Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, exhaust system, cooling system Drivetrain: Transmission (automatic and manual), driveline, differential, axles Chassis: Suspension (front and rear), steering system, brake system (including ABS) Electrical: Wiring diagrams, lighting, instrumentation, power distribution, starter, alternator, battery Body And Interior: Body panels, doors, windows, locks, seats, climate control (HVAC), interior trim Diagnostics And Troubleshooting: Diagnostic procedures, fault codes, common issues, step-by-step troubleshooting guides Emission Control: Exhaust Gas Recirculation (EGR), Oxygen Sensors (Lambda Sensors), catalytic converter operation and diagnostics. Instrumentation And Gauges: Diagnosis and repair of speedometer, tachometer, fuel gauge, temperature gauge, warning lights. Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, tune-ups, fluid checks Repair: Engine component removal and installation, transmission overhaul, brake caliper replacement, suspension arm replacement Diagnostics: Component testing, electrical system diagnosis, emissions system troubleshooting Disassembly And Assembly: Detailed instructions for component breakdown and reassembly Wheel Alignment: Specifications and procedures for front and rear wheel alignment. Lubrication Points: Detailed information on chassis lubrication and greasing points. Body Repair: Procedures for dent repair, panel replacement, rust mitigation, and door/window mechanisms. Technical Depth Depth: Comprehensive: Covers basic maintenance to complex internal component repairs and diagnostics. Diagnostic Codes: Includes OBD I (On-Board Diagnostics) codes and their meanings relevant to the 1991 model year. Specific BMW diagnostic codes are covered. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: High-resolution, printable pages (user can print entire manual or specific sections). Binding Type Binding Type: N/A (Digital PDF - printing and binding by user) Paper Type Paper Type: N/A (Digital PDF - user choice for printing) Searchability Search Functionality: Likely searchable text within PDF (standard for factory manuals). ⚙️ Engine Specifications Primary Engine Engine Code: M30B35 Engine Type: Inline-6 Cylinder, SOHC Displacement: 3.430 cc (3.4 L) Performance Horsepower: 208 hp @ 5700 rpm Torque: 225 lb-ft @ 4000 rpm Fuel System Induction: Bosch Motronic Fuel Injection (e.g., Motronic 1.3) Fuel Type: Unleaded Gasoline (Premium) Engine Management Ignition System: Electronic Ignition with Knock Control Engine Layout Configuration: Inline 6-cylinder Timing System Valve Actuation: Single Overhead Camshaft (SOHC) per bank, driven by a duplex timing chain. 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (ZF 4HP22) Optional Transmission Type: 5-Speed Manual (Getrag 260/5) Features Transmission Fluid Spec Auto: BMW LT-2 or equivalent ATF (e.g., Dexron II) Transmission Fluid Spec Manual: API GL-4, SAE 75W-90 Gear Oil 📐 Dimensions Exterior Length: 4780 mm (188.2 in) Width: 1751 mm (68.9 in) Height: 1410 mm (55.5 in) Wheelbase: 2799 mm (110.2 in) Weights Curb Weight Auto: Approx. 1630 kg (3593 lbs) Curb Weight Manual: Approx. 1580 kg (3483 lbs) Wheels And Tires Standard Tire Size: 205/65VR15 or 225/55VR15 (depending on trim/options) Wheel Bolt Pattern: 5x120 mm Wheel Offset: ET 19 to ET 22 (typical range) 🛡️ Safety Features Ratings Crash Test Info: Specific NHTSA/IIHS ratings for 1991 models may vary, but E34 chassis known for solid construction. Active Features ABS: Standard Anti-lock Braking System (ABS) Passive Features Airbags: Driver airbag (standard), passenger airbag optional or unavailable depending on market and build date. Seatbelts: Front and rear seat belts 💡 Technology Features Infotainment Audio System: BMW Bavaria C or Professional II cassette stereo systems; optional CD changer. Climate Control: Manual or automatic climate control (ECC - Electronic Climate Control). Driver Assistance Cruise Control: Standard or optional cruise control. Connectivity Connectivity Features: Limited by era; no modern Bluetooth or USB. Onboard computer may offer basic trip data. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or 6-12 months, depending on driving conditions and oil used. Manual will specify exact BMW recommendations. Spark Plug Replacement: Refer to manual; typically around 30,000 miles for original plugs, or when needed based on performance. Coolant Flush: Every 2-3 years or 30,000 miles, check manual for BMW coolant specification. Fluid Specifications Engine Oil Type: Synthetic or Synthetic Blend, SAE 5W-30 or 5W-40 recommended (check manual for exact BMW LL-01 or specific OE approval). Engine Oil Capacity: Approximately 6.5 liters (6.9 US quarts) with filter change. Coolant Type: BMW Blue Coolant (G48) or equivalent G11 type antifreeze/water mixture. Brake Fluid Type: DOT 4 Power Steering Fluid: BMW Power Steering Fluid (or equivalent Pentosin CHF 7.1 / ATF Dextron II in some cases, check manual) Known Issues Common...