🏷️ Basic Information Identification Make: Mercedes-Benz Model: W123 280E Chassis Code: W123 Engine Code: M110 Body Style: Sedan (E-Class) Market Segment: Executive Car 👋 Introduction Market Position Market Positioning: Premium executive sedan known for build quality, durability, and engineering excellence Competitive Analysis Competitors: BMW 5 Series (E28), Audi 100, Volvo 700 Series, Cadillac Seville, Lincoln Continental Key Features Key Features: Robust construction, comfortable ride, sophisticated engineering, durable M110 engine, high safety standards for its era Value Proposition Manual Value: Essential for owners and independent mechanics to maintain and repair a complex, high-quality vintage automobile, saving significant costs compared to dealership service. 📋 Manual Details Coverage Areas Applicable Model Years: 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985 Vehicle Variants Covered: 280E (fuel-injected gasoline model) Page Count Estimated Page Count: Varies, typically 500+ pages for comprehensive factory manuals Manual Type Manual Type: Factory Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete overhaul, disassembly, reassembly, timing, valve adjustments, lubrication, cooling system, fuel injection system (Bosch K-Jetronic) Transmission: Manual and automatic transmission service, fluid changes, internal repairs, clutch replacement (for manual) Drivetrain: Driveshaft, universal joints, differential, rear axle service Brakes: Hydraulic system, brake pads, rotors, calipers, master cylinder, proportioning valve, parking brake Suspension: Front and rear suspension components, shock absorbers, springs, ball joints, control arms, alignment specifications Steering: Power steering system, steering gearbox, tie rods, steering column, alignment Electrical: Battery, charging system (alternator), starting system (starter), ignition system, lighting, instrumentation, horn, wipers, power windows Fuel System: Fuel pump, fuel filter, fuel lines, fuel tank, fuel injection components (air flow meter, injectors, pressure regulator) Exhaust System: Exhaust manifolds, catalytic converter (later models), mufflers, pipes, oxygen sensor (later models) Climate Control: HVAC system, blower motor, heater core, evaporator, refrigerant, AC compressor Body And Trim: Body panel removal/installation, door mechanisms, glass, interior trim, bumpers Diagnostics: Troubleshooting charts, symptom-based diagnosis, diagnostic procedures for fuel injection and ignition Wiring Diagrams: Comprehensive electrical wiring diagrams for all systems Procedures Included Maintenance Procedures: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, air filter replacement, belt adjustments, lubrication points Repair Procedures: Component removal, installation, rebuilding, and adjustment for all major systems Troubleshooting Guides: Step-by-step diagnostic procedures for common and uncommon faults Overhaul Procedures: Detailed instructions for complete engine and transmission overhauls Adjustment Procedures: Valve clearance, ignition timing, idle speed, fuel mixture (CO adjustment), suspension alignment Technical Depth Depth: Comprehensive, from basic maintenance to full engine/transmission rebuilds and advanced electrical diagnostics 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable if properly scanned Print Quality Print Quality: Dependent on source scan quality, typically good for factory manuals Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Inline-6 Cylinder, Double Overhead Camshaft (DOHC) Displacement: 2.8 Liters (2799 cc) Bore X Stroke: 86.5 mm x 80.25 mm Compression Ratio: 8.0:1 or 8.4:1 (depending on market and year) Performance Horsepower Hp: 180 PS (178 hp) @ 5800 rpm (approx. for early models) Torque Lb Ft: 188 lb-ft (255 Nm) @ 4000 rpm (approx. for early models) Fuel System Fuel Delivery: Bosch K-Jetronic Continuous Fuel Injection (CIS) Fuel Type: Unleaded gasoline (Octane rating 91+ recommended) Lubrication Oil Capacity Liters: 7.5 Liters (with filter) Cooling System Coolant Capacity Liters: 10.0 Liters Ignition System Ignition Type: Electronic Ignition (breakerless distributor) 🔧 Transmission Standard Standard Transmission: 4-Speed Manual Transmission Optional Optional Transmission: 4-Speed Automatic Transmission (300 Series) Features Automatic Transmission Features: Hydraulic torque converter, Select Shift programming Fluid Specifications Automatic Transmission Fluid: Mercedes-Benz Specification 236.2 (e.g., Dexron III compatible) 📐 Dimensions Exterior Wheelbase Mm: 2790 mm (109.8 in) Length Mm: 4725 mm (186.0 in) Width Mm: 1790 mm (70.5 in) Height Mm: 1425 mm (56.1 in) Weights Curb Weight Kg: 1450 - 1550 kg (3197 - 3417 lbs) Gross Vehicle Weight Rating Kg: 1900 kg (4189 lbs) Tires Wheels Standard Tire Size: 175 HR 14 or 185/70 HR 14 Wheel Bolt Pattern: 5x112 🛡️ Safety Features Ratings Crash Safety: Designed with advanced safety cage structure, collapsible steering column, and energy-absorbing crumple zones for its time. No official modern crash test ratings available. Active Features Active Safety: Four-wheel disc brakes, power-assisted steering, limited-slip differential (optional) Passive Features Passive Safety: Dual-circuit braking system, padded dashboard, safety glass 💡 Technology Features Infotainment Infotainment System: Basic AM/FM radio, optional cassette player. Manual controls for climate. Driver Assistance Driver Assistance: Limited to power steering and anti-lock braking system (ABS) became optional on later models, not standard. Connectivity Connectivity Features: N/A (No in-car connectivity features) 🔧 Maintenance Service Intervals Oil Change Interval Km: 10,000 km (6,000 miles) or 12 months Major Service Interval Km: 40,000 km (25,000 miles) or 24 months Fluid Specifications Engine Oil Specification: API SF/CD, SAE 15W-40 or 10W-40 (depending on climate) Coolant Specification:...