🏷️ Basic Information Identification Make: Mercedes-Benz Model: W114 / W115 Model Designation: W114 (Einfach-Sitzer - 6-cylinder), W115 (Mehrzweckwagen - 4/5-cylinder) Codes Chassis Code: W114, W115 👋 Introduction Market Position Target Audience: Mercedes-Benz W114/W115 owners, DIY enthusiasts, independent repair shops Competitive Analysis Advantage: Vehicle-specific, factory data, unlike generic repair guides; digital format offers convenience and cost-effectiveness Key Features Feature 1: Comprehensive, step-by-step instructions Feature 2: High-quality diagrams and illustrations Feature 3: Detailed wiring schematics Feature 4: Vehicle-specific technical specifications Feature 5: All-in-one PDF format for ease of use and printing 📋 Manual Details Coverage Areas Covered Models: All W114 and W115 models Covered Years: Specifically for 1975 models, but often applicable to a broader range within the W114/W115 production period (1968-1976) Repair Scope: A-Z, comprehensive repairs Page Count Estimated Page Count: Extensive (specific number not provided, but implied to be comprehensive for all repairs) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Digital Format: PDF Software Requirements: Adobe PDF Reader, Winzip Operating System Compatibility: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac 📖 Manual Coverage Systems Covered Engine Mechanical: Engine Overhaul, Cylinder Head, Block, Pistons, Crankshaft, Camshaft, Valves, Timing Fuel System: Fuel Pumps, Carburetors (e.g., Solex, Zenith), Fuel Injection Systems (e.g., Bosch D-Jetronic for some W114 models), Fuel Tank, Lines, Filters, Specifications Ignition System: Distributor, Spark Plugs, Coils, Ignition Timing, Condenser, Points (where applicable), Electronic Ignition Cooling System: Radiator, Water Pump, Thermostat, Hoses, Coolant Specifications, Fan Clutch Lubrication System: Oil Pump, Oil Filter, Oil Pan, Oil Viscosity Specifications, Oil Change Intervals Emission Control: Emission Control Systems specific to 1975, EGR (Exhaust Gas Recirculation), Air Injection, Fuel Evaporative Emission Control Intake Exhaust: Intake Manifold, Exhaust Manifold, Mufflers, Catalytic Converter (if equipped), Emissions related Transmission Manual: Clutch System, Manual Gearbox Overhaul, Gear Ratios, Shift Linkage, Fluid Specifications Transmission Automatic: Automatic Transmission (e.g., 3-speed or 4-speed) Overhaul, Valve Body, Torque Converter, Fluid Type and Capacity, Shift Control Drive Axle Differential: Rear Axle Housing, Differential Gear Assembly, Axle Shafts, Fluid Specifications, Wheel Bearings Suspension Front: Independent Front Suspension, Control Arms, Ball Joints, Bushings, Springs, Shock Absorbers, Wheel Alignment Specifications Suspension Rear: Rear Axle, Suspension Arms, Bushings, Springs, Shock Absorbers, Wheel Alignment Specifications Steering: Steering Column, Steering Gearbox (e.g., Recirculating Ball), Power Steering System (if equipped), Steering Linkage, Fluid Specifications Brakes Hydraulic: Brake System Diagnosis, Master Cylinder, Wheel Cylinders, Calipers, Brake Pads, Brake Shoes, Brake Fluid Specifications, Bleeding Procedures Brakes Parking: Parking Brake Mechanism, Cables, Adjustment Procedures Wheels Tires: Tire Size Specifications, Inflation Pressures, Wheel Torque Specifications, Bolt Patterns Electrical System: Battery, Alternator, Starter Motor, Wiring Harnesses, Fuses, Relays, Lighting System, Horn Instrumentation: Instrument Cluster Diagnosis and Repair, Gauges (Speedometer, Tachometer, Fuel, Temperature), Warning Lights Climate Control: Air Conditioning System (if equipped), Heater Core, Blower Motor, Controls, Refrigerant Specifications and Procedures Body Exterior: Doors, Hood, Trunk Lid, Bumpers, Grille, Exterior Trim, Glass Replacement, Seals Body Interior: Seats, Upholstery, Dashboard, Trim Panels, Interior Lighting, Door Hardware Wipers Washers: Wiper Motor, Linkage, Blades, Washer Pump, Fluid Reservoir Safety Restraint: Seat Belts, Retractor Mechanisms, (Note: Supplemental Restraint Systems like airbags were not common in 1975) Cruise Control: Cruise Control System Diagnosis and Repair (if equipped) Lighting: Headlights, Taillights, Turn Signals, Interior Lights, Wiring Schematics for Lighting Multiplex Can Communication: Not applicable for 1975 models. This likely refers to modern manual features. Procedures Included Maintenance Procedures: Oil Changes, Filter Replacements, Spark Plug Service, Fluid Checks and Replacements, Lubrication Points, Belt Adjustments Diagnostic Procedures: Troubleshooting Guides for various systems, identifying common faults, symptom-based diagnosis Repair Procedures: Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation Rebuild Procedures: Complete rebuilds for engines, transmissions, carburetors, and other major components Adjustment Procedures: Carburetor idle/mixture adjustments, ignition timing, valve clearance (if applicable), parking brake adjustment, clutch adjustment Wiring Schematics: Detailed electrical wiring diagrams for all vehicle systems Technical Depth Depth: Factory level, highly detailed, covering basic to advanced repairs and diagnostics Illustration Quality: Diagrams, illustrations, and schematics 📊 Manual Specifications File Format File Type: PDF Searchability: Implied to be searchable due to PDF format and digital nature Print Quality Printability: All pages printable, including enlarged images Binding Type Binding: Digital (PDF) - No physical binding Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Options W115: Inline-4 gasoline (e.g., M115 series, 2.0L, 2.2L) and diesel (e.g., OM615 series, 2.0L, 2.2L) Engine Options W114: Inline-6 gasoline (e.g., M114 series, 2.3L, 2.5L, 2.8L), V8 gasoline (e.g., M116 series, 3.5L for 280SE 3.5) Performance Horsepower Range: Approx. 70 hp (diesel) to 200 hp (V8 petrol) depending on specific engine and market configuration Torque Range: Varies significantly with engine displacement and type. Fuel System Carburetor Types: Commonly Zenith, Solex, Weber (single or dual barrel depending on engine) Injection System: Bosch D-Jetronic on some higher-end W114 models (e.g., 280, 280E) 🔧 Transmission Standard Standard Transmission Type: 4-speed manual...