🏷️ Basic Information Identification Make: Mercedes-Benz Model: W123 Product Name: Mercedes-benz W123 1976-1985 Workshop Repair Service Manual PDF Download Generation Generation: First Generation (W123) Codes Chassis Code: W123 👋 Introduction Market Position Target Audience: Mercedes-Benz W123 owners, DIY enthusiasts, professional mechanics Value Proposition: Saves money on repair costs, provides professional-grade repair and maintenance information, complete and intact Competitive Analysis Comparison To Paper: Electronic format offers convenience (print sections, no dirt), same content as physical manuals, potentially factory manual versions Key Features Key Features Summary: Comprehensive coverage, detailed diagrams, step-by-step instructions, troubleshooting assistance, electrical system diagnostics 📋 Manual Details Coverage Areas Applicable Years: 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985 Covered Models: All W123 Sedan, Coupe, Wagon (Estate), and Long Wheelbase variants Covered Engines: All W123 Engine Types (Petrol and Diesel) Covered Transmissions: All W123 Transmission Types (Manual and Automatic) Page Count Estimated Page Count: Hundreds of pages (specific count not provided, but described as comprehensive) Manual Type Manual Type: Workshop Repair Service Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Systems: General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Heater/Air Conditioning, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle Procedures Included Procedures: Repair procedures, maintenance, disassembly, assembly, cleaning, reinstallation, diagnostic procedures, troubleshooting, electrical service procedures, lubrication Technical Depth Depth: Comprehensive, detailed, professional technician level Illustrations: Detailed illustrations, drawings, photos, enlarged insets Instructions: Numbered instructions, detailed substeps, notes, cautions, warnings 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Full Printable Zoom Capability: YES Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Requirements Software Requirements: Adobe PDF Reader & WinZip Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Options Summary: M110 (2.8L Inline-6 Petrol), M115 (2.0L Inline-4 Petrol), M116 (3.8L V8 Petrol - some markets/later models), OM615 (2.2L Inline-4 Diesel), OM616 (2.4L Inline-4 Diesel), OM617 (3.0L Inline-5 Diesel) Performance Performance Details: Manual provides detailed specifications for horsepower, torque, and RPM for all covered engine variants Fuel System Fuel System Coverage: Fuel Injection and Fuel System servicing and repair procedures 🔧 Transmission Standard Standard Transmission: 4-speed and 5-speed Manual Transmissions Optional Optional Transmission: 3-speed and 4-speed Automatic Transmissions (e.g., 722.1, 722.3) Features Transmission Coverage: Service, repair, and overhaul procedures for all transmission types 📐 Dimensions Exterior Body Styles: Saloon (W123), Estate/Kombi (S123), Coupe (C123), Long Wheelbase Saloon (V123) Weights Curb Weight: Varies by model and engine, typically ranging from ~1400 kg to ~1650 kg 🛡️ Safety Features Ratings Safety Features Coverage: Manual covers restraint systems (seatbelts, potential airbags in later models), braking systems, and chassis integrity Active Features Active Safety: Brake system diagnostics and repair, steering system maintenance Passive Features Passive Safety: Chassis/Body structural information relevant to safety, restraint system components 💡 Technology Features Infotainment Infotainment Coverage: Manual covers original radio systems and speaker installations Driver Assistance Driver Assistance Features: Focus on mechanical and electrical systems; limited electronic driver aids typical for the era Connectivity Connectivity Features: N/A for the era; manual focuses on core vehicle functions 🔧 Maintenance Service Intervals General Maintenance Intervals: Manual provides detailed schedules for oil changes, filter replacements, fluid checks, lubrication, and belt inspections Fluid Specifications Engine Oil Type: Covers various API classifications (e.g., SE, SF) and viscosity grades (e.g., 10W-40, 15W-40) depending on engine and climate, manual will specify correct types Coolant Type: Typically a glycol-based antifreeze, manual will detail specific Mercedes-Benz specifications Transmission Fluid Type: Specifies Dexron II or equivalent for automatic transmissions and gear oil specifications for manual transmissions Brake Fluid Type: DOT 3 or DOT 4 specified, manual confirms correct type Power Steering Fluid: Typically ATF Dexron II or equivalent, manual will confirm Known Issues Common Issues Covered: Manual addresses common W123 issues such as vacuum leaks, climate control system faults, diesel injection pump calibration, and rust prevention/repair Technical Specifications Torque Specifications: Detailed torque values for critical fasteners across all systems 📚 Vehicle History Brand Heritage Brand Legacy: Mercedes-Benz known for engineering excellence, durability, and luxury Model Evolution W123 Significance: Highly successful and durable model, known as the 'tank' of Mercedes-Benz, solidified brand's reputation for reliability Production Production Period: 1976-1985 Production Volume: Over 2.7 million units worldwide 🏆 Awards & Recognition Recognitions Model Recognition: W123 widely recognized for its exceptional build quality, durability, and longevity, often cited in 'cars that last forever' lists.