🏷️ Basic Information Identification Make: Mercedes-Benz Model: W115 Generation Codes: W115 Series Chassis Code: W115 Generation Start Year: 1967 End Year: 1976 👋 Introduction Market Position Target User: Owners and mechanics of Mercedes-Benz W115 models seeking comprehensive repair information. Competitive Analysis Value Proposition: Provides dealership-level service information, enabling cost savings and professional quality repairs. Key Features Feature 1: Extensive coverage for a wide range of model years (1967-1976). Feature 2: Detailed, step-by-step repair procedures. Feature 3: Emphasis on special tools and technical nuances. Feature 4: Diagnostic information to aid in troubleshooting. Feature 5: Safety warnings and important notes clearly marked. 📋 Manual Details Coverage Areas Primary Focus: Workshop Repair and Service Model Years Covered: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976 Page Count Total Pages: 3867 Manual Type Type: Workshop Service Manual Language Language: English Format Delivery Method: Electronic (Email Delivery) File Type: PDF 📖 Manual Coverage Systems Covered Engine Service: Complete overhaul, removal/installation, tuning, lubrication system, cooling system, fuel system, ignition system, exhaust system. Transmission Service: Manual and automatic transmission repair, removal/installation, adjustments, fluid specifications. Drivetrain: Drive shafts, differentials, axle repairs. Brakes: Hydraulic system, disc/drum brake service, master cylinder, wheel cylinders, brake lines, parking brake. Steering: Power steering system, steering box, tie rods, linkages. Suspension: Front and rear suspension components, shock absorbers, springs, control arms, ball joints. Electrical System: Wiring diagrams, starter, alternator, battery, lighting system, fuses, relays, instruments, ignition switch. Bodywork: Body panel repair, doors, windows, seals, trim, interior components, chassis adjustments. HVAC: Heating system, ventilation, refrigerant system (if applicable). Procedures Included Maintenance And Tuning: Routine maintenance, tune-up procedures, fluid changes, filter replacements, spark plug service. Diagnostic Troubleshooting: Problem identification, diagnostic charts, fault finding for various systems. Component Removal Installation: Step-by-step instructions for removing and installing major and minor components. Overhaul And Rebuild: Detailed procedures for rebuilding engines, transmissions, and other major assemblies. Adjustments: Carburetor adjustments, ignition timing, valve clearance, brake adjustments, clutch adjustments. Safety Precautions: Emphasis on safe working practices and required safety equipment. Technical Depth Depth: Comprehensive, covering basic maintenance to full engine and transmission rebuilds. Target Audience: Mechanical technicians and experienced DIY enthusiasts. Special Tools: References to specific Mercedes-Benz special tool numbers and illustrations where required. Proprietary Components: Includes instructions for proprietary components and references manufacturer instructions. 📊 Manual Specifications File Format Format: PDF Searchability: Likely searchable text-based PDF, facilitating quick information retrieval. Print Quality Printable: Yes Binding Type Binding: N/A (Digital Delivery) Paper Type Paper Type: N/A (Digital Delivery) Delivery Delivery Speed: Fast and Free Electronic Delivery via Email ⚙️ Engine Specifications Primary Engine Engine Families Covered: M115 (4-cylinder gasoline), OM615 (4-cylinder diesel), OM616 (5-cylinder diesel). Common Engine Displacements: 1.8L (1799 cc), 2.0L (1988 cc), 2.2L (2197 cc), 2.4L (2404 cc), 2.0L Diesel (1988 cc), 2.2L Diesel (2197 cc), 2.4L Diesel (2404 cc). Performance Horsepower Range: Approx. 60-95 HP (depending on engine variant and market). Torque Range: Approx. 120-170 Nm (depending on engine variant and market). Fuel System Fuel Delivery Gasoline: Solex or Zenith Carburetors (e.g., 38/38 HDA, 35/35 INAT). Fuel Delivery Diesel: Bosch inline injection pumps (e.g., PES 4M, EP/VA). Ignition System Ignition Type: Contact breaker points ignition system with coil. Lubrication Oil Capacity: Typically 5-6 liters (refer to specific engine for exact capacity). Recommended Oil Viscosity: SAE 10W-30, 10W-40, or 20W-50 (depending on climate, check manual for specifics). 🔧 Transmission Standard Manual Transmission: 4-speed or 5-speed manual transmissions available. Optional Automatic Transmission: Optional 4-speed automatic transmission (e.g., 720 H) available on many models. Features Clutch: Single dry plate clutch. Fluid Specs Automatic Transmission Fluid: Dexron II or equivalent (consult manual for exact specification). 📐 Dimensions Exterior Body Styles: 4-door Sedan, 5-door Wagon (Universal). Wheelbase: Approx. 2750 mm (108.3 in). Overall Length: Approx. 4680 mm (184.3 in). Weights Curb Weight: Approx. 1300-1500 kg (depending on body style and engine). 🛡️ Safety Features Ratings Crash Safety: Modern safety standards were less stringent, but design incorporated safety cell principles. Active Features Brakes: Front disc brakes, rear drum brakes. Passive Features Seatbelts: Lap belts typically standard, some later models may have offered optional 3-point belts. Steering Column: Designed with some energy absorption features. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio, often with an optional cassette player. Speaker configurations were typically 2-4. Driver Assistance Cruise Control: Rarely fitted, and if so, it would be an aftermarket or very early, rudimentary system. Connectivity Connectivity Features: None; designed before the era of modern connectivity. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 km or 6-12 months (consult manual for specific engine/oil type). Tune Up Interval: Spark plugs, ignition points, and air filter checks/replacements as needed or every 10,000-15,000 km. Transmission Fluid Change: Automatic: 40,000-60,000 km. Manual: Less frequent, primarily for inspection. Fluid Specifications Coolant: Ethylene glycol-based antifreeze/coolant (50/50 mix with distilled water). Check manual for specific MB approval if available. Brake Fluid: DOT...