🏷️ Basic Information Identification Make: BMW Model: 733i / 735i Generation: E23 Production Years Covered: 1983-1985 Codes Chassis Code: E23 👋 Introduction Market Position Segment: Luxury Sedan Bmw Positioning: BMW's flagship luxury sedan of its era, emphasizing performance and comfort. Competitive Analysis Key Competitors: Mercedes-Benz S-Class (W126), Jaguar XJ Series, Cadillac DeVille. Key Features Design Philosophy: Classic BMW styling with a focus on driver engagement and refinement. Engineering Focus: Robust inline-six engines, sophisticated suspension, and driver-oriented cockpit. Manual Value Benefit To Owner: Enables cost-effective maintenance and repair, extending the lifespan of a classic luxury vehicle. 📋 Manual Details Coverage Areas Manual Type: Workshop Repair Service Manual Language: English Format: HTML (requires Internet Explorer), PDF (requires Adobe Acrobat Reader) File Type: ZIP Archive 📖 Manual Coverage Systems Covered Engine: 3.2L (733i), 3.4L (735i) - overhaul, diagnosis, repair Engine Electrical System: Ignition, starting, charging systems, sensors, ECU troubleshooting Fuel System: Fuel injection, fuel pump, injectors, fuel lines, diagnosis Cooling System: Radiator, water pump, thermostat, cooling fan, hoses, diagnosis Exhaust System: Exhaust manifold, catalytic converter, muffler, pipes, inspection Clutch: Clutch operation, adjustment, replacement Transmission: Manual and Automatic transmission overhaul, repair, and maintenance Drivetrain: Propeller shaft, rear axle, front axle, differential repair and inspection Steering: Power steering system, steering column, tie rods, hydraulic components Suspension: Front and rear suspension, shock absorbers, control arms, bushings Brake System: Front and rear brakes (disc/drum), ABS (if equipped), hydraulic system, bleeding procedures Wheels And Tires: Wheel specifications, tire pressure, rotation, alignment Body: Body panel repair, chassis structure, corrosion protection Body Equipment: Doors, windows, locks, mirrors, sunroof operation and repair Interior Trim: Seats, upholstery, dashboard, door panels, headliner Electrical System: Wiring diagrams, fuses, relays, power distribution, lighting Instruments And Gauges: Speedometer, tachometer, fuel gauge, warning lights, diagnostic indicators Lighting System: Headlights, taillights, interior lights, fog lights, bulb replacement Heating And Air Conditioning: HVAC system operation, components, troubleshooting, refrigerant handling Audio System: Radio, speakers, antenna, installation and repair of factory and optional equipment Special Equipment: Cruise control, power windows/seats, central locking, other factory options Procedures Included Maintenance: Routine maintenance, fluid changes, filter replacements, inspection schedules Troubleshooting: Diagnostic procedures, fault finding for all major systems Repair: Detailed step-by-step instructions for component removal, repair, and reinstallation Rebuilding: Complete engine, transmission, and differential overhaul procedures Diagnostics: Electrical system diagnostics, fuel system troubleshooting, engine performance analysis Alignment: Wheel alignment specifications and procedures Technical Depth Depth: Comprehensive: Covers routine maintenance to complete engine and transmission rebuilds. Illustrations: Detailed illustrations, diagrams, and pictures for each procedure. Printability: All pages are printable. Target Audience: Do-it-yourself enthusiasts and experienced professional mechanics. 📊 Manual Specifications File Format Primary Format: HTML Secondary Format: PDF (for some components or as a fallback view) Software Requirements: Internet Explorer (for HTML), Adobe Acrobat Reader (for PDF), WinZip/WinRAR (for extraction) Print Quality Output Quality: High-resolution, clear and readable text and graphics. Binding Type Binding: Digital format (no physical binding) Paper Type Paper: Not applicable (digital format) ⚙️ Engine Specifications Primary Engine 733I Engine: M30B32 - 3.2L (3210cc) Inline-6 SOHC 735I Engine: M30B34 - 3.4L (3430cc) Inline-6 SOHC Performance 733I Horsepower: Approx. 197 hp @ 5500 rpm (Euro spec) 733I Torque: Approx. 214 lb-ft @ 3500 rpm (Euro spec) 735I Horsepower: Approx. 218 hp @ 5200 rpm (Euro spec) 735I Torque: Approx. 232 lb-ft @ 3500 rpm (Euro spec) Fuel System Injection Type: Bosch L-Jetronic or Motronic fuel injection Fuel Type: Unleaded Gasoline Engine Design Configuration: Inline-6 Cylinder Valvetrain: Single Overhead Camshaft (SOHC), 2 valves per cylinder 🔧 Transmission Standard Manual Transmission Offered: Yes (4-speed and 5-speed Getrag options) Optional Automatic Transmission Offered: Yes (ZF 4HP22 4-speed automatic) Features Gearshift Mechanism: Cable-operated or direct linkage, covered in detail. 📐 Dimensions Exterior Wheelbase: Approx. 111.4 inches (2830 mm) Length: Approx. 199.5 inches (5068 mm) Weights Curb Weight: Approx. 3600-3800 lbs (1630-1725 kg) depending on configuration 🛡️ Safety Features Ratings Crash Test Data: No standardized crash test ratings from modern agencies for this era, but built to high standards for its time. Active Features Braking System: Four-wheel disc brakes, optional ABS (Anti-lock Braking System). Passive Features Body Structure: Reinforced passenger cell, crumple zones. Restraints: Seat belts for all occupants. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette player, optional premium sound systems. Driver Assistance ABS: Optional Anti-lock Braking System (ABS) for enhanced braking control. Connectivity No Modern Connectivity: No modern connectivity features like Bluetooth or USB found in contemporary vehicles. 🔧 Maintenance Service Intervals Oil Change: Recommended every 5,000 - 7,500 miles (8,000 - 12,000 km) or annually. Major Service: Significant inspection and component checks recommended around 30,000 miles (48,000 km) and 60,000 miles (96,000 km). Fluid Specifications Engine Oil: API SG or SH, SAE 10W-40 or 15W-50 depending on climate (refer to manual for specific OEM recommendations). Coolant: Ethylene glycol based antifreeze with corrosion inhibitors (50/50 mix with distilled water). Automatic Transmission Fluid:...