🏷️ Basic Information Identification Make: Mercedes-Benz Model: W114/W115 Generation: First Generation Chassis Code: W114 (Six-Cylinder), W115 (Four-Cylinder) Codes Internal Project Codes: W114/W115 👋 Introduction Market Position Value Proposition: The exact same manual used by dealership technicians, enabling DIY repairs and significant cost savings. Competitive Analysis Differentiation: Vehicle-specific, factory-accurate information, unlike generic repair guides. High page count signifies comprehensive coverage. Key Features Ease Of Use: All information on one CD-manual, printable pages, zoomable images for clarity. Content Richness: Hundreds of illustrations, diagrams, wiring schematics, and torque specifications. Diy Enablement: Explicitly designed to make repairs easy for any skill level with step-by-step instructions. 📋 Manual Details Coverage Areas Model Years: 1968-1976 Specific Models Covered: 220, 220D, 230, 240D, 250, 250C, 280, 280C, 300D Page Count Total Pages: >5000 Manual Type Type: Complete Service & Repair Manual Language Language: English Format Digital Format: PDF/HTML/SWF Delivery Method: Instant Download Searchability: Likely searchable text within PDF, greatly enhancing usability. Zoom Functionality: Allows users to zoom into specific details of diagrams and illustrations. 📖 Manual Coverage Systems Covered Engine: Overhaul, rebuilding, performance tuning, firing orders, serpentine belt routings Brakes: Service procedures, hydraulic systems, disc and drum brake overhaul Transmission: Removal, installation, in-car servicing, automatic and manual transmission overhaul Suspension: Front end alignment, wheel balancing, component replacement Electrical: Complete wiring diagrams, troubleshooting, diagnostic tree charts, computer diagnostics Bodywork: Sunroof operation and repair, body panel alignment, interior trim HVAC: Air conditioning service, refrigerant capacities, system diagnostics Fuel System: Fuel pump, fuel lines, filters, and carburetor/injection system diagnostics and repair. Exhaust System: Component replacement and troubleshooting for the exhaust system. Cooling System: Radiator, fan, water pump, thermostat, and coolant flow diagnostics. Steering System: Steering box, tie rods, and steering column repair and adjustment. Chassis Lubrication: Points and procedures for chassis lubrication. Body And Chassis: Structural components, subframes, body panel repair, rust prevention. Procedures Included Maintenance: Factory maintenance schedules and charts, fluid specifications, lubrication points Repair: Complete step-by-step repair procedures for all covered systems Diagnostics: Troubleshooting guides, diagnostic trouble codes, computer diagnostic tree charts Timing: Timing belt replacement and service procedures Drivetrain: U-joint and CV-joint service procedures Engine Timing: Precise procedures for setting ignition timing and valve timing. Technical Depth Depth: Factory-level, comprehensive for all repair and maintenance tasks Scope: Covers every single detail for the specified models Torque Specifications: Complete torque specifications for all critical fasteners and components. Vacuum Diagrams: Detailed vacuum diagrams for emissions control and auxiliary systems. Illustrations: Hundreds of illustrations and diagrams to guide repair and maintenance. 📊 Manual Specifications File Format Compatibility: All Versions of Windows & Mac Interactivity: Zoom In/Out functionality Print Quality Printability: All pages are printable Binding Type Binding: Digital (Downloadable CD-Manual) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Variants Covered: Inline-4 (Diesel), Inline-4 (Petrol), Inline-6 (Petrol) Performance Performance Data Availability: Detailed specifications on every model covered, including engine performance tuning. Fuel System Fuel System Coverage: Includes details on fuel delivery, injection systems (for diesel and petrol), and carburetors (where applicable). Engine Codes Engine Code Reference: Manual provides specific information for engine codes associated with each model variant (e.g., M115 for 220D, M102 for 230). Engine Variants Covered 220: M115.920 (2.2L Inline-4 Petrol) 220D: OM615.912 (2.2L Inline-4 Diesel) 230: M115.914 / M102.980 (2.3L Inline-4 Petrol) 240D: OM616.912 (2.4L Inline-4 Diesel) 250: M114.920 (2.5L Inline-6 Petrol) 280: M110.921 / M110.922 (2.8L Inline-6 Petrol, DOHC) 300D: OM617.912 (3.0L Inline-5 Diesel) 🔧 Transmission Standard Standard Transmission Types: 4-speed manual, 4-speed automatic, 3-speed automatic (depending on model and year) Optional Optional Transmission Types: 4-speed automatic was often optional on manual transmission models. Features Transmission Coverage Details: Removal, installation, in-car servicing, internal component overhaul, fluid type and capacity specifications. 📐 Dimensions Exterior Wheelbase: W114: 2750 mm (108.3 in), W115: 2750 mm (108.3 in) - standard wheelbase. Length: W114 Sedan: 4720 mm (185.8 in), W115 Sedan: 4675 mm (184.1 in). Coupe versions are slightly shorter. Weights Curb Weight: Varies by model and engine; generally between 1300-1500 kg (2866-3307 lbs). Gross Vehicle Weight: Specified per model in the manual for load capacity. 🛡️ Safety Features Ratings Crash Test Data Availability: While formal crash ratings were less standardized in this era, the manual details structural integrity and safety system components. Active Features Active Safety Components: Four-wheel disc brakes (on some models), dual-circuit braking system, power steering. Passive Features Passive Safety Components: Reinforced safety cage, safety glass, padded dashboard, collapsible steering column. 💡 Technology Features Infotainment Infotainment Systems: Basic radio and speaker systems of the era, detailed in electrical sections for repair. Driver Assistance Driver Assistance Features: Primarily focused on mechanical systems like power steering and brakes. No electronic driver aids. Connectivity Connectivity Features: None (pre-digital era). 🔧 Maintenance Service Intervals Routine Maintenance: Manual provides factory-recommended intervals for oil changes, filter replacements, and tune-ups. Fluid Specifications Engine Oil: Specific viscosity grades (e.g., SAE 10W-40, 15W-40)...