🏷️ Basic Information Identification Make: BMW Model: 7 Series Model Code: E23 Year: 1985 👋 Introduction Market Position Vehicle Class: Full-size Luxury Sedan Era Context: Flagship model for BMW in the mid-1980s, competing with Mercedes-Benz S-Class and Jaguar XJ Competitive Analysis Competitors 1985: Mercedes-Benz W126 S-Class, Jaguar XJ6 Series III, Audi V8 Quattro (emerging) Key Features Vehicle Bmw Philosophy: Ultimate Driving Machine in a luxury package, focus on driver engagement and engineering excellence Key Features Manual Value Proposition: Provides essential, dealership-quality repair information for owners and independent mechanics, saving time and money compared to outsourced repairs. 📋 Manual Details Coverage Areas Primary Coverage: 1985 BMW 7 Series (E23) All Models Repair Scope: Comprehensive A-Z Repairs Page Count Estimated Page Count: Extensive (specific count not provided, implies dealership-level detail) Manual Type Type: Service and Repair Manual Origin: Dealership Technician Original Language Language: English Format Format: Digital PDF Digital Features: Searchable, Printable, Zoomable Images 📖 Manual Coverage Systems Covered Engine Maintenance: Complete overhaul, tune-up, diagnostics, lubrication Engine Mechanical: Engine block, cylinder head, pistons, crankshaft, camshafts, timing systems Fuel System: Fuel pumps, injectors, fuel lines, pressure regulators, fuel injection system service Emission Control: Catalytic converters, EGR systems, evaporative emission control Cooling System: Radiator, water pump, thermostat, cooling fan, hoses, coolant specifications Lubrication System: Oil pump, oil filter, oil cooler, oil specifications and capacities Ignition System: Spark plugs, ignition coils, distributors, ignition timing specifications Charging System: Alternator, voltage regulator, battery maintenance and testing Transmission Auto: Automatic transmission overhaul, fluid service, diagnostics, control systems Transmission Manual: Manual transmission overhaul, clutch service, gearbox repair Drivetrain: Driveshaft, universal joints, differential, axle shafts, bearing service Suspension: Front and rear suspension components, shock absorbers, springs, bushings, alignment specifications Wheels And Tires: Tire pressure specifications, wheel balancing, lug nut torque values Brake System: Front and rear brakes (disc/drum), calipers, rotors, brake pads, hydraulic system, brake fluid specifications Parking Brake: Parking brake mechanism adjustment and repair Steering System: Steering column, steering gear, power steering pump, hoses, fluid specifications, steering linkage Air Conditioning: AC system components, refrigerant handling, diagnostics, service procedures Restraint Systems: Supplemental Restraint System (SRS) components, seat belt mechanisms Body And Interior: Door mechanisms, locks, hinges, glass, mirrors, seats, interior trim panels Electrical System: Wiring schematics, component testing, fuse box diagrams, relays, lighting, power windows, central locking Instrumentation: Instrument cluster diagnostics and repair, warning lights Wipers And Washers: Wiper motor, washer pump, wiper blades, washer fluid system Cruise Control: Cruise control system operation and repair Audio Visual: Radio, speakers, antenna system (for the era) Multiplex Communication: Wiring and diagnostics for any multiplexed systems of the era Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, lubrication Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, testing of components Repair Procedures: Step-by-step instructions for all mechanical and electrical repairs Rebuild Procedures: Detailed instructions for engine, transmission, and differential rebuilds Installation Procedures: Guidance on installing replacement parts and accessories Technical Depth Depth: Factory-level technical detail suitable for professional technicians and advanced DIY enthusiasts Visual Aids: Diagrams, illustrations, and wiring schematics 📊 Manual Specifications File Format Compatibility: Windows (Vista, XP, ME, 98, NT, 2000) and Mac OS Print Quality Printability: Fully printable pages Image Quality: High-resolution images, zoomable for detail Binding Type Binding: N/A (Digital PDF - no physical binding) Paper Type Paper Type Suitability: Printable on standard paper for workshop use ⚙️ Engine Specifications Primary Engine Engine Type: Inline-6 Cylinder, Naturally Aspirated Engine Variants Engine Options: Likely includes 735i and potentially 745i (with turbocharger) variants for 1985 model year, depending on market. Manual will cover all. Performance Displacement: 3.453 cc (for 735i), 3.210 cc (for 745i - Turbocharged) Horsepower Approx: Approx. 218 hp (735i), Approx. 252 hp (745i Turbo) Torque Approx: Approx. 214 lb-ft (735i), Approx. 255 lb-ft (745i Turbo) Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic fuel injection Engine Management Ignition Timing: Electronically controlled, adjustable via diagnostic tools or specified procedures 🔧 Transmission Standard Standard Transmission: 4-speed Automatic (ZF 4HP22) Optional Optional Transmission: 5-speed Manual Transmission (Getrag) Features Automatic Features: Sport mode, electronic control for smoother shifts 📐 Dimensions Exterior Length: Approx. 5024 mm (197.8 in) Width: Approx. 1798 mm (70.8 in) Height: Approx. 1420 mm (55.9 in) Weights Curb Weight Approx: Approx. 1700-1800 kg (3750-3970 lbs) Wheelbase Wheelbase: Approx. 2830 mm (111.4 in) 🛡️ Safety Features Ratings Safety Ratings Era: No standardized crash test ratings like modern NCAP, but engineered to high standards for its time. Active Features Active Safety: ABS (Anti-lock Braking System) often standard or optional on higher trims Passive Features Passive Safety: Reinforced body structure, impact-absorbing zones, dual front airbags (optional or standard on later models/trims) Seat Belts: Front and rear seat belts 💡 Technology Features Infotainment Infotainment Era: Analog radio, cassette player, basic graphic equalizer, often with premium sound system options. Driver Assistance Driver Assistance Features: ABS, cruise control, onboard computer (check control system) displaying basic vehicle...