🏷️ Basic Information Identification Make: Mercedes-Benz Model: W114/W115 Series Model Variants: 220, 230, 240, 250, 280, 300 Codes Chassis Codes: W114 (Six-cylinder engines), W115 (Four-cylinder engines) Generation Generation Name: Stroke Eight 👋 Introduction Market Position Target Audience: DIY mechanics, independent repair shops, Mercedes-Benz enthusiasts, owners seeking to save on maintenance costs Competitive Analysis Value Proposition: Provides significant cost savings on repairs and maintenance compared to dealership services. Empowering vehicle owners with knowledge for self-sufficiency. Key Features Ease Of Use: Easy-to-follow step-by-step instructions and photographic guidance for all procedures. Accessibility: Downloadable to PC, Mac, tablets, and smartphones for convenient access. Long Term Value: Yours to keep forever, allowing for ongoing reference and use. 📋 Manual Details Coverage Areas Service Scope: Complete workshop service and repair procedures, A-Z Page Count Estimated Pages: Extensive (specific number not provided, but implied to be comprehensive) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Digital Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Engine overhaul, diagnosis, tune-up, cooling system, lubrication system, fuel system (carbureted and early injection), ignition system, exhaust system, engine specifications Transmission: Manual transmission service and repair, Automatic transmission service and repair (e.g., 3-speed Automatic, 4-speed Automatic), clutch, driveshaft, differential Brakes: Brake system diagnosis and repair, hydraulic system, disc brakes, drum brakes, parking brake Suspension Steering: Front and rear suspension systems, shock absorbers, springs, ball joints, steering linkage, power steering system Electrical: Wiring diagrams, starter system, charging system (alternator/generator), battery, lighting system, ignition switch, instrumentation, fuses, relays Bodywork Chassis: Body panel repair, door mechanisms, glass replacement, interior trim, chassis lubrication, body sealing Heating Ventilation Ac: HVAC system diagnosis and repair, heater core, blower motor, ventilation ducts Fuel Tank Exhaust: Fuel tank inspection and replacement, fuel lines, exhaust system components Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, lubrication, tune-ups, fluid checks and changes Troubleshooting: Diagnostic charts, common problems and solutions for various systems Repair: Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation Rebuilds: Detailed procedures for engine, transmission, and major component overhauls Adjustments: Valve adjustments, carburetor adjustments, ignition timing, brake adjustments Specifications: Torque specifications, clearances, tolerances, fluid capacities, electrical resistance values Technical Depth Depth: Comprehensive, from basic maintenance to complete mechanical and electrical overhauls 📊 Manual Specifications File Format Software Requirement: Adobe Reader (free download) Print Quality Printability: Printable by page, chapter, or entire manual Binding Type Digital Binding: N/A (Digital File) Paper Type Digital Paper Equivalent: N/A (Digital File) ⚙️ Engine Specifications Primary Engine Engine Families: M115 (4-cylinder gasoline), M116 (V8 - less common in W114/W115, but some later models like 280SE W111 and some variants could share components), M110 (6-cylinder DOHC - for 280/300 variants) Engine Displacements Included: Approx. 2.0L (220), 2.3L (230), 2.4L (240), 2.5L (250), 2.8L (280), 3.0L (300) Performance Horsepower Range: Typically 70-140 hp, depending on engine and tuning (e.g., 220 ~ 95 hp, 300 ~ 120-140 hp) Torque Range: Varies significantly by engine, e.g., 190 Nm for a 2.3L to over 230 Nm for a 3.0L. Fuel System Fuel Delivery Types: Carbureted (e.g., Solex, Zenith) for most models, early Bosch D-Jetronic fuel injection for some higher-performance variants (e.g., 230E, 250E, 280E). Fuel Type: Unleaded gasoline (post-conversion or original spec depending on market and year, manual will cover original specs and potentially leaded fuel considerations). 🔧 Transmission Standard Standard Transmission: 4-speed Manual (column or floor shift) Optional Optional Transmission: 3-speed Automatic (e.g., BW35), 4-speed Automatic (later models) Features Clutch Type: Single dry plate (manual transmission) Differential Type: Hypoid, rear-wheel drive, with various ratio options depending on engine and usage. 📐 Dimensions Exterior Body Styles: 4-door Sedan (Saloon), 5-door Estate (Station Wagon - W114/W115 Universal), 2-door Coupe (W114) Weights Curb Weight Range: Approximately 1350-1550 kg (2976-3417 lbs) depending on model and equipment. 🛡️ Safety Features Ratings Crash Safety Era: Designed to meet safety standards of the late 1960s and early 1970s. Lacks modern crumple zones and advanced airbags. Focus on robust chassis construction. Active Features Braking System: Front disc brakes, rear drum brakes. Some higher-end models might have rear disc brakes. Power assistance often standard. Passive Features Seatbelts: Lap belts standard, front shoulder belts optional or standard on later models. Rear belts were often optional. Steering Column: Collapsible steering column designed to mitigate intrusion in a frontal impact. 💡 Technology Features Infotainment Radio Options: Optional factory-installed AM/FM radios, often with manual tuning. Cassette players were rare or aftermarket. Speaker Configuration: Typically 2 or 4 speakers, depending on trim and options. Driver Assistance Driver Aids: Limited by era. Key features include power steering (optional on some models), power brakes, automatic transmission options. Connectivity Connectivity Features: N/A by modern standards. Focus was on mechanical reliability and comfort. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000 - 7,500 km (3,000 - 4,500 miles) or every 6 months, depending on driving conditions. Manual will provide precise...