🏷️ Basic Information Identification Make: Mercedes-Benz Model: W116 Product Name: Mercedes W116 Repair Service Manual Generation Generation Designation: W116 Production Years: 1972-1980 👋 Introduction Market Position Positioning: The definitive resource for W116 owners and technicians seeking authentic factory repair information. Competitive Analysis Differentiation: Vehicle-specific, factory-issued content unlike generic aftermarket guides. Offers comprehensive, step-by-step instructions and schematics. Digital format allows for selective printing, avoiding wear and tear of physical manuals. Key Features Accuracy: Exact same manual used by dealership technicians. Completeness: Covers all models and all repairs A-Z. Usability: One easy-to-use manual, printable pages for workshop convenience. Value Proposition: Empowers DIY repairs, saving significant costs on dealership labor. 📋 Manual Details Coverage Areas Covered Models: All W116 models (including 280 S, 280 SE, 300 SD, 350 SE, 350 SEL, 450 SE, 450 SEL, 450 SEL 6.9) Repair Scope: A-Z (All Repairs) Page Count Estimated Page Count: Thousands (comprehensive factory documentation) Manual Type Type: Factory Repair Service Manual Purpose: Maintenance, Service, Diagnosis, and Repair Language Language: English (Assumed based on typical market) Format Digital Format: Printable Files (likely PDF or similar) Compatibility: Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, macOS 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Fuel System (Injection/Carburetion), Ignition System, Exhaust System, Cooling System Drivetrain: Transmission (Automatic and Manual, where applicable), Drive Axles, Differential Chassis: Suspension (Front & Rear), Steering System, Brakes (Hydraulic, ABS where applicable), Wheels & Tires Electrical: Wiring Schematics, Lighting System, Charging System, Starting System, Instrumentation, HVAC Electrical Components, Power Accessories Body: Body Exterior, Interior Trim, Doors, Windows, Seats, HVAC System (Mechanical & Controls) Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication Diagnostics: Troubleshooting Guides, Symptom-Based Diagnostics, Component Testing Repair: Component Removal & Installation, Overhaul Procedures, Reassembly Steps Installation: Accessory Installation, Component Replacement Guidelines Technical Depth Depth: Complete Factory-Level Detail Detail Level: Step-by-step instructions, detailed diagrams, exploded views, torque specifications, diagnostic flowcharts 📊 Manual Specifications File Format File Quality: High Resolution, Printable Searchability: Likely Searchable Text (depending on source digitization) Print Quality Printability: All pages are printable Image Enhancement: Images can be blown up and printed enlarged Binding Type Binding: Digital (no physical binding) Paper Type Paper Suitability: Suitable for printing on standard paper ⚙️ Engine Specifications Primary Engine Engine Options: M110 (2.8L Inline-6), M115 (2.4L Inline-4 - less common in many markets), M116 (3.5L V8), M117 (4.5L V8), OM617 (3.0L Turbodiesel Inline-5) Performance Horsepower Range: Approx. 115 hp (300 SD) to 280 hp (450 SEL 6.9) Torque Range: Approx. 145 lb-ft (300 SD) to 354 lb-ft (450 SEL 6.9) Fuel System Fuel Delivery: Carburetor (e.g., Solex, Zenith) for 280S/SE variants; Bosch D-Jetronic or K-Jetronic Fuel Injection for V8 and later 6-cylinder models; Diesel Injection for OM617 Engine Codes Inline 6 Gasoline: M110.98X, M110.98X V8 Gasoline: M116.98X (3.5L), M117.98X (4.5L), M100.98X (6.9L) Inline 5 Diesel: OM617.950 (Naturally Aspirated), OM617.951 (Turbocharged) 🔧 Transmission Standard Transmission Types: 3-speed Automatic (e.g., 3HP20, 4HP22 on later models), 4-speed Manual (less common in many markets) Optional Optional Transmission: 4-speed Automatic (e.g., 4HP22) Features Automatic Features: Hydraulic torque converter, planetary gearsets, electronic/vacuum modulator control. 📐 Dimensions Exterior Wheelbase: Approx. 2850 mm (112.2 in) for short-wheelbase, 3035 mm (119.5 in) for long-wheelbase (SEL models) Weights Curb Weight Range: Approx. 1700 kg to 1950 kg (3750 lbs to 4300 lbs) depending on engine and equipment Gross Vehicle Weight: Varies by model, typically around 2200-2400 kg 🛡️ Safety Features Ratings Safety Focus: Designed with advanced safety features for its era, including a strong safety cell and crumple zones. Passive Features Passive Safety: Reinforced passenger compartment, energy-absorbing steering column, laminated safety glass windshield. Active Features Active Safety Features: Four-wheel disc brakes, power-assisted steering, optional Anti-lock Braking System (ABS) on later models. 💡 Technology Features Infotainment Infotainment Features: Analog radio with mechanical tuning, optional cassette player, speaker system. Driver Assistance Driver Assistance Features: Power steering, optional cruise control, optional ABS (Anti-lock Braking System). Connectivity Connectivity Features: Limited by era; primarily internal diagnostics via test ports and indicator lights. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or 6-12 months (refer to manual for specific engine and oil type) Major Service Interval: Recommended at 30,000 miles for tune-ups, fluid flushes, and component checks. Fluid Specifications Engine Oil: API SG/SH rated, SAE 10W-40 or 20W-50 recommended (refer to manual for specific viscosity based on ambient temperature) Transmission Fluid: Automatic Transmission Fluid (ATF) Dextron II or equivalent (for automatic transmissions) Coolant: 50/50 mix of ethylene glycol antifreeze and distilled water Brake Fluid: DOT 3 or DOT 4 (ensure compatibility with seals) Known Issues Common Issues: Vacuum line degradation, fuel injection system problems (K-Jetronic), rust in common Mercedes-Benz areas (wheel arches, door bottoms), wear in suspension components, climate control system faults, headlight leveling system issues. Diesel Specific Issues: Glow plug system faults, injection pump seal leaks, turbocharger wear (on turbocharged models). 📚 Vehicle History Brand...