🏷️ Basic Information Identification Make: Mercedes-Benz Model: W114/W115 Common Names: Stroke-8, /8 Series Codes Chassis Code: W114 (6-cylinder), W115 (4-cylinder) 👋 Introduction Market Position Target Audience: Enthusiasts, DIY mechanics, independent repair shops working on classic Mercedes-Benz vehicles. Value Proposition: Enables owners to perform their own maintenance and repairs, saving significant costs and maintaining vehicle value. Competitive Analysis Competitors: Original Mercedes-Benz factory service manuals (often expensive and difficult to find), Haynes/Chilton manuals (may lack the depth and detail of factory procedures). Key Features Ease Of Use: Step-by-step instructions and pictures make complex procedures accessible. Accessibility: Downloadable to PC, Mac, tablets, and smartphones for convenient access. Ownership Permanence: Once downloaded, the manual is yours to keep forever. 📋 Manual Details Coverage Areas Years Covered: 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976 Models Covered: All W114 and W115 variants, including all engine types, transmission options, and trim levels. Page Count Estimated Pages: Extensive, comprehensive coverage implies several hundred pages (exact number not specified, but typical for a complete workshop manual). Manual Type Type: Complete Workshop Service and Repair Manual Language Language: English Format Format: Downloadable Digital File (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, disassembly, assembly, internal components, cooling system, lubrication system, fuel system, exhaust system. Engine Performance: Ignition system, carburation/fuel injection, emissions control, engine tuning and diagnostics. Transmission: Manual and automatic transmission service, overhaul, operation, and troubleshooting. Drivetrain: Clutch, driveshaft, differential, axles, and wheel bearings. Suspension: Front and rear suspension components, shock absorbers, springs, bushings, alignment procedures. Steering: Steering gear, linkage, power steering system, troubleshooting. Brakes: Brake system diagnosis, hydraulic components (master cylinder, wheel cylinders, calipers), brake pads/shoes, brake lines, parking brake, troubleshooting. Electrical System: Wiring diagrams, battery, alternator, starter motor, lighting system, gauges, switches, fuses, relays, troubleshooting. Body And Chassis: Body panel repair, doors, windows, locks, trim, weatherstripping, frame and chassis components. Heating And Air Conditioning: HVAC system components, operation, maintenance, and troubleshooting. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, tune-ups, lubrication. Diagnostics: Troubleshooting guides, symptom-based diagnostics, common fault finding. Repair: Step-by-step repair procedures for all major and minor components. Overhaul: Complete engine, transmission, and differential overhaul procedures. Installation: Component installation and replacement guides. Technical Depth Depth: Comprehensive; covers everything from routine maintenance and minor repairs to complete engine rebuilds and advanced diagnostics. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Likely searchable text within the PDF, allowing for quick access to specific topics. Print Quality Printability: High quality, printable on demand (individual pages, chapters, or entire manual). Binding Type Binding: N/A (Digital download, user prints and binds as desired) Paper Type Paper Type: N/A (Digital download, user selects paper type if printing) ⚙️ Engine Specifications Primary Engine Engine Family: M114, M115 (petrol); OM601, OM615, OM616, OM617 (diesel) Engine Variants Petrol Engines: 2.0L Inline-4 (M115), 2.3L Inline-4 (M115), 2.5L Inline-6 (M114), 2.8L Inline-6 (M114) Diesel Engines: 2.0L Inline-4 Diesel (OM615), 2.2L Inline-4 Diesel (OM615), 2.4L Inline-4 Diesel (OM616), 3.0L Inline-5 Diesel (OM617) Performance Horsepower Range: Approximately 70 hp (diesel) to 140 hp (petrol), depending on specific engine and market. Torque Range: Varies significantly by engine, but generally adequate for the era. Fuel System Carburetion: Zenith or Solex carburetors on most petrol engines. Injection: Bosch mechanical fuel injection on some later or performance-oriented models. Diesel Injection: Bosch inline injection pumps for diesel engines. 🔧 Transmission Standard Manual Transmission: 4-speed and 5-speed manual transmissions were available. Optional Automatic Transmission: 3-speed automatic transmission (e.g., 'Hydrak') was a common option. Features Clutch: Single dry plate clutch for manual transmissions. 📐 Dimensions Exterior Body Styles: 4-door Sedan (Saloon), 5-door Estate (Station Wagon - 'Universal'), 2-door Coupe (W114 only). Weights Curb Weight: Approximately 1300-1500 kg (2866-3307 lbs) depending on body style and engine. 🛡️ Safety Features Ratings Era Appropriateness: Designed to meet safety standards of the 1960s and 1970s. Lacked modern safety features like airbags or ABS. Active Features Braking System: Front disc brakes, rear drum brakes. Power assisted on most models. Passive Features Body Construction: Integral body construction with crumple zones (advanced for its time). Seat Belts: Lap and shoulder belts (front), lap belts (rear), often optional or not fitted on very early models. 💡 Technology Features Infotainment Audio System: Typically analog radios, often with AM/FM. Cassette players became available later in the production run. Driver Assistance Features: None by modern standards. Focus was on mechanical reliability and basic comfort. Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change: Typically every 3,000-5,000 miles (5,000-8,000 km) or annually, depending on oil quality and driving conditions. Tune Up: Spark plug replacement, ignition timing adjustment, carburetor adjustment, filter replacement as per schedule (e.g., every 15,000-20,000 miles). Fluid Specifications Engine Oil: API SG or SF equivalent, viscosity typically SAE 20W-50 or 10W-40 depending on climate. Manual specifies exact grades. Coolant: Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio)....