🏷️ Basic Information Identification Make: Mercedes-Benz Model: W116 300 SD Model Code: W116 Engine Designation: 300 SD Year: 1978-1980 Chassis Code: W116 👋 Introduction Market Position Target Audience: Do-it-yourself owners and professional mechanics seeking comprehensive service and repair information for their Mercedes-Benz W116 300 SD. Value Proposition Cost Effectiveness: An inexpensive way to keep the vehicle working properly by enabling owners to perform their own maintenance and repairs. Key Features Completeness: Complete official full factory service repair manual, covering all styles and aspects of the vehicle's maintenance and repair. 📋 Manual Details Coverage Coverage Areas: 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. Page Count: Hundreds of pages (specific number not provided, but implied to be extensive). Manual Type: Workshop Service Repair Manual Language: English Comprehensive Scope: This manual provides a complete overview, covering hundreds of pages of detailed information to ensure all aspects of vehicle service and repair are addressed. Format File Format: PDF Delivery Method: Download 📖 Manual Coverage Systems Covered Engine: Complete service and repair for the OM617 naturally aspirated diesel engine, including fuel injection, cooling, lubrication, and emission systems. Transmission: Service and repair procedures for the automatic transmission, including fluid changes, component overhauls, and adjustment. Brakes: Detailed information on the hydraulic brake system, including disc and drum brake service, hydraulic component testing, and bleeding procedures. Electrical: Comprehensive coverage of the vehicle's electrical system, including detailed wiring diagrams, troubleshooting guides for common electrical faults, starter, alternator, lighting, and accessory circuits. Suspension Steering: Service and repair for front and rear suspension components, including springs, shock absorbers, control arms, ball joints, and steering system components, including power steering. Body Chassis: Information on chassis components, body repairs, interior trim, restraint systems (seat belts), heating and air conditioning systems. Procedures Included Maintenance: Regular maintenance tasks, fluid changes, filter replacements, lubrication points, and inspection schedules. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and uncommon vehicle issues, including engine performance, electrical faults, and braking problems. Repair Rebuild: Step-by-step instructions for the complete disassembly, repair, and reassembly of major vehicle components, including engine, transmission, brakes, and suspension. Diagnostics: Detailed diagnostic trees and procedures for pinpointing the root cause of mechanical and electrical problems. Technical Depth Depth: In-depth, professional-quality information suitable for both DIY enthusiasts and experienced mechanics, covering everything from basic adjustments to complete engine and transmission overhauls. Illustrations: Includes hundreds of photos, drawings, and illustrations to guide users through each service and repair procedure, with enlarged insets for detailed part examination. Instruction Format: Numbered, step-by-step instructions with detailed substeps, notes, cautions, and warnings. Electrical Diagrams: Detailed wiring diagrams are included for ease of use in diagnosing and repairing electrical system issues. 📊 Manual Specifications File Quality Print Quality: Printable without any restriction, allowing users to print entire sections or specific pages. Readability: Adobe PDF Reader compatible, with clear formatting and searchable text (implied by PDF format). Delivery Delivery Format: Digital download link available immediately after payment. No Shipping Wait: Eliminates the need for shipping and waiting for physical delivery. Accessibility Platform Compatibility: Compatible with all PC-based Windows operating systems and Mac OS. Usability Storage Options: Can be saved to a hard drive and potentially burned to a CD-ROM. ⚙️ Engine Specifications Primary Engine Engine Type: Inline 5-cylinder, naturally aspirated diesel Engine Code: OM617 (specific variant for 300 SD) Displacement: 3.0 Liters (2998 cc) Performance Horsepower: ~110-125 hp (depending on specific market/tuning) Torque: ~170-185 lb-ft (depending on specific market/tuning) Fuel System Fuel Injection: Bosch inline injection pump with pre-combustion chamber diesel injection. Fuel Type: Diesel 🔧 Transmission Standard Type: Automatic transmission (e.g., 3-speed or 4-speed depending on exact year and market) Optional Manual Transmission: Typically not offered for the 300 SD model, which was primarily an automatic. Features Fluid Type: Specific ATF (Automatic Transmission Fluid) type as per Mercedes-Benz specifications (detailed in manual). 📐 Dimensions Exterior Body Style: 4-door Sedan Wheelbase: Approx. 115.7 inches (2939 mm) Length: Approx. 199.2 inches (5058 mm) Width: Approx. 70.5 inches (1791 mm) Height: Approx. 56.7 inches (1440 mm) Weights Curb Weight: Approx. 3,800 - 4,000 lbs (1725 - 1815 kg) 💡 Technology Features Infotainment Audio System: Original systems typically included AM/FM radio and cassette players, often with basic speaker configurations. Modern upgrades are common. Climate Control HVAC: Features a vacuum-actuated climate control system for heating and air conditioning, requiring specific maintenance and troubleshooting. 🔧 Maintenance Service Intervals Oil Change: Typically every 5,000-7,500 miles or 6-12 months (refer to manual for exact mileage and time recommendations). Fuel Filter Replacement: Recommended at regular intervals, often tied to mileage or time (e.g., 20,000-30,000 miles). Air Filter Replacement: Recommended at regular intervals, often tied to mileage or time (e.g., 15,000-20,000 miles). Fluid...