🏷️ Basic Information Identification Make: Mercedes-Benz Model: W123 280SE Production Years: 1976-1985 👋 Introduction Market Position Target Audience: Mercedes-Benz W123 280SE owners, independent repair shops, DIY enthusiasts Positioning Statement: The definitive guide for maintaining, troubleshooting, and repairing the iconic Mercedes-Benz W123 280SE, empowering owners and technicians with factory-level knowledge. Competitive Analysis Manual Value: Offers significant cost savings on repairs compared to professional shop rates Key Features Usability: Easy-to-follow numbered instructions, bold figure numbers for quick illustration matching, enlarged insets for detail Delivery Method: Instant Download, no shipping costs or waiting time Completeness Guarantee: Complete and intact, no missing or corrupt parts/pages 📋 Manual Details Coverage Areas Vehicle Coverage: All W123 280SE models, engines, trims, and transmission types Page Count Estimated Page Count: Hundreds of pages (specific number not provided, but indicated as comprehensive) Manual Type Type: Workshop Repair Service Manual Language Language: English Format Digital Format: PDF Download 📖 Manual Coverage Systems Covered Engine Service And Repair: Complete engine diagnostics, overhaul, and component repair Transmission Service And Repair: Automatic and manual transmission service, overhaul, and troubleshooting Brake System: Brake component service, hydraulic system, and ABS troubleshooting (if applicable) Electrical System: Comprehensive wiring diagrams, component testing, and electrical troubleshooting Suspension And Steering: Front and rear suspension, steering components, alignment procedures Cooling System: Radiator, thermostat, water pump, fan, and heater core service Fuel Injection And Fuel System: Fuel delivery, injection system diagnostics, fuel pump and filter service Emission Control System: Emission system components, diagnosis, and repair HVAC System: Heater, ventilation, and air conditioning system service and repair Chassis And Body: Body panel repair, door mechanisms, trim, and structural components Restraint System: Seatbelt mechanisms and related safety components Interior Components: Interior trim, seating, dashboard, and accessory service Differential And Drive Axles: Rear axle service, differential overhaul, and drive shaft components Procedures Included General Maintenance: Oil changes, filter replacements, fluid checks, lubrication Troubleshooting: Diagnostic procedures for common and complex issues across all systems Repair Procedures: Detailed, step-by-step instructions for component removal, repair, and installation Disassembly And Assembly: Comprehensive guidance on taking apart and reassembling vehicle components Electrical Diagnostics: Troubleshooting and repair of electrical system faults using wiring diagrams Wiring Diagrams: Detailed and accurate wiring schematics for electrical systems Engine Control System: Diagnosis and repair of engine management systems, including fuel injection and ignition timing Periodic Lubrication: Schedule and procedures for lubricating various chassis and drivetrain components Emission System Service: Service and testing of emission control devices and related components Technical Depth Level Of Detail: Professional technician-level repair and diagnostic information Documentation Quality: Written by manufacturer, complete and intact, with detailed illustrations, drawings, and photos Diagnostic Tools: Information suitable for use with standard automotive diagnostic tools and specialized Mercedes-Benz equipment of the era 📊 Manual Specifications File Format Format: PDF Print Quality Printable: Full Printable Zoom Capability: Yes (Zoom IN/OUT) Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Requirements Software Requirements: Adobe PDF Reader, WinZip (for potential file compression) Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Model: M110 (likely 2.8L Inline-6) Performance Displacement: 2.8 Liters (approx. 2799 cc) Configuration: Inline-6 Cylinder Horsepower: Approx. 177-185 PS (175-182 hp) DIN, depending on market and specific engine variant Torque: Approx. 235-245 Nm (173-181 lb-ft) DIN Fuel System Fuel Delivery: Bosch K-Jetronic fuel injection (CIS - Continuous Injection System) 🔧 Transmission Standard Transmission Type Standard: 4-speed manual transmission (typical for base models) Optional Transmission Type Optional: 4-speed or 5-speed automatic transmission (e.g., 4G-TRONIC) Features Transmission Service: Covers service, repair, and troubleshooting for both manual and automatic transmissions 📐 Dimensions Exterior Body Styles: Sedan, Coupe, Estate (Station Wagon) 💡 Technology Features Infotainment Audio System: Period-appropriate AM/FM radio, cassette player (optional/upgrade) Driver Assistance ABS: Anti-lock Braking System (ABS) may be optional on later models or specific trims Connectivity Connectivity Features: N/A (pre-digital era, limited to basic vehicle functions) 🔧 Maintenance Service Intervals General Intervals: Varies by component; typically oil changes every 5,000-7,500 miles, tune-ups, and fluid changes as per factory recommendations (detailed in manual) Fluid Specifications Engine Oil: Refer to manual for specific viscosity grade (e.g., 10W-40 or 15W-40) and API service classification suitable for the era and engine Transmission Fluid: Specific automatic transmission fluid (e.g., Dexron III equivalent) or manual transmission gear oil required; refer to manual for exact specifications Coolant: Ethylene glycol based antifreeze/coolant; consult manual for correct mixture ratio and type Brake Fluid: DOT 3 or DOT 4 brake fluid recommended; consult manual for specific type Known Issues Common Problems: Rotted fuel lines (especially early rubber components), climate control flap failure, vacuum line leaks, potential rust issues on body panels, suspension wear Electrical Component Wear: Degradation of wiring insulation over time, particularly in high-heat areas 📚 Vehicle History Brand Heritage Mercedes Benz Legacy: Reputation for engineering excellence, durability, and luxury Model Evolution W123 Significance: Highly regarded for...