🏷️ Basic Information Identification Make: Mercedes-Benz Model: Typ-116 (W116) Common Names: W116 Production Years Covered By Manual: 1972-1980 Codes Chassis Codes: W116.020, W116.024, W116.025, W116.028, W116.029, W116.032, W116.033, W116.036, W116.120 Engine Codes: M110 (2.8L), M116 (3.5L V8), M117 (4.5L V8), M100 (6.9L V8), OM617 (3.0L Turbodiesel) 👋 Introduction Market Position Target Audience: Mercedes-Benz W116 owners, DIY enthusiasts, independent workshops, and restoration specialists Competitive Analysis Value Proposition: Provides comprehensive, factory-level technical information in German for a classic luxury sedan, enabling owners to perform a wide range of maintenance and repair tasks. Key Features Content Quality: 100% complete and intact, no missing/corrupt pages/sections Accessibility: Instant download, printable pages, zoomable for detailed viewing Ease Of Use: Easy-to-follow step-by-step instructions and pictures 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive workshop repair and service Specific Models Covered: 280 S, 280 SE, 280 SEL, 350 SE, 350 SEL, 450 SE, 450 SEL, 450 SEL 6.9, 300 SD Turbodiesel Page Count Estimated Page Count: Very extensive (implied by 620MB file size for a complete workshop manual) Manual Type Type: Workshop Repair Service Manual Language Language: German Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul and rebuilding, engine performance, firing orders, timing belt service procedures, serpentine belt routings Drivetrain Systems: Transmission removal and installation, transmission in-car servicing, U-joint and CV-joint service procedures Brake Systems: Brakes, brake servicing procedures Suspension Steering: Front end and alignment procedures and specifications, suspension Electrical Systems: Wiring diagrams, trouble codes, computer diagnostic trouble tree charts, computer diagnostic codes Comfort Convenience: Sunroof, air conditioning service and capacities Procedures Included Maintenance: Factory maintenance schedules and charts, general repair procedures Diagnostics Troubleshooting: Troubleshooting and diagnostics, computer diagnostic trouble tree charts Repair Rebuild: Engine overhaul and rebuilding, complete repair procedures A-Z Technical Depth Depth: Comprehensive, covering every single detail from basic maintenance to full rebuilds and diagnostics Detail Level: Detailed illustrations, exploded diagrams, drawings, and photos for all service repair procedures Scope: All models and all engines within the specified production years are covered 📊 Manual Specifications File Format Format: PDF File Size: 620MB Print Quality Printability: Yes, individual pages can be printed as needed Resolution: High-quality, suitable for clear viewing and printing Binding Type Binding: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) Compatibility System Compatibility: All Versions of Windows, Mac, iOS, BB, Android, etc. (Requires PDF Reader) ⚙️ Engine Specifications Primary Engine 280 S/Se/Sel (M110): 2.8 L Inline-6, DOHC, Bosch D-Jetronic (early) or K-Jetronic (later) fuel injection 350 Se/Sel (M116): 3.5 L V8, SOHC, Bosch D-Jetronic or K-Jetronic fuel injection 450 Se/Sel (M117): 4.5 L V8, SOHC, Bosch D-Jetronic or K-Jetronic fuel injection 450 Sel 6.9 (M100): 6.9 L V8, SOHC, Bosch K-Jetronic fuel injection, noted for its powerful performance and hydropneumatic suspension 300 Sd Turbodiesel (Om617): 3.0 L Inline-5 Turbodiesel, known for its durability and torque Performance Horsepower Torque Ranges: Varies significantly by engine, from approx. 180 hp (280) to over 280 hp (450 SEL 6.9) Fuel System Injection Systems: Primarily Bosch D-Jetronic and K-Jetronic (fuel injection), with carbureted variants less common on these models 🔧 Transmission Standard Standard Transmission: Typically a 3-speed or 4-speed automatic transmission (e.g., 3HP12, 4HP22). Optional Optional Transmission: Manual transmissions were available on some base models, but automatics were far more prevalent in the luxury segment. Features Transmission Service: Manual covers in-car servicing and removal/installation procedures. 📐 Dimensions Exterior Chassis Platform: W116 chassis, the first dedicated 'S-Class' designation for Mercedes-Benz's flagship sedan. Body Styles: Primarily 4-door sedan, designed for luxury and comfort. Weights Curb Weight: Ranged from approximately 1600 kg to over 2000 kg depending on engine and equipment. 🛡️ Safety Features Ratings Safety Design: Represented a significant advancement in automotive safety for its era, with features like a safety-conscious interior design and robust construction. Active Features Braking Systems: Four-wheel disc brakes, often with power assistance and anti-lock braking system (ABS) availability on later models or as an option. Passive Features Structural Integrity: Reinforced passenger cell, crumple zones, and safety-oriented steering column. 💡 Technology Features Infotainment Original Features: High-quality audio systems, power windows, climate control (optional or standard depending on model/market), central locking. Driver Assistance Advanced Features: Optional ABS, cruise control (Tempomat), headlight washers, and headlight aim adjustment. Connectivity Original Connectivity: Primarily analog systems; modern connectivity features are not applicable to the original design. 🔧 Maintenance Service Intervals General Maintenance: The manual provides factory maintenance schedules, covering regular checks, fluid changes, and component inspections. Fluid Specifications Engine Oil: Specifications for various oil viscosities (e.g., SAE 20W-50, 15W-40) depending on climate and specific engine, often requiring API SF or higher. Coolant: Specific Mercedes-Benz coolant mixture ratios and types are detailed. Transmission Fluid: Dexron II or equivalent for automatic transmissions, with specific fill capacities. Known Issues Common W116 Concerns: Rust/corrosion, aging fuel injection systems (D-Jetronic/K-Jetronic), vacuum leak issues, wear in suspension bushings, and...