🏷️ Basic Information Identification Make: Mercedes-Benz Model: 124 Sedan Engine Variant: 260E Engine Displacement: 2.6L Model Years Covered: 1987, 1988, 1989, 1990, 1991, 1992 Codes Chassis Code: W124 Engine Code: M103.981 👋 Introduction Market Position Segment: Executive Sedan Brand Perception: Reputation for build quality, durability, safety, and technological innovation. Competitive Analysis Competitors: BMW 5 Series, Audi 100/200, Jaguar XJ, Volvo 740/760. Key Features Engineering: Robust construction, advanced suspension design, refined powertrain. Design: Timeless styling, aerodynamic efficiency, spacious and comfortable interior. Safety: Pioneering safety features for its era, including advanced crumple zones and ABS. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair for the specified Mercedes-Benz 124 Sedan 260E models. Page Count Estimated Pages: Thousands (typical for factory-level service manuals, actual number varies) Manual Type Type: Service and Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine: Engine mechanicals, lubrication, cooling, fuel, ignition, emissions, engine management (Bosch KE-Jetronic). Transmission: 4-speed automatic transmission (722.4) and potentially 5-speed manual transmission (if applicable to 260E variant). Drivetrain: Driveshafts, differential, rear axle assembly. Suspension: Front suspension (MacPherson struts, control arms), rear suspension (multi-link independent), shock absorbers, springs, bushings. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), brake fluid, lines, calipers, master cylinder, parking brake. Steering: Power steering system, steering gear, steering column, tie rods. Electrical: Battery, charging system, starter, ignition system, lighting, instrumentation, power accessories, wiring diagrams, fuses, relays. Climate Control: HVAC system, air conditioning, heater core, blower motor, controls, refrigerant. Body: Body panels, doors, hood, trunk, glass, seals, interior trim, exterior trim. Diagnostic Troubleshooting: Systematic diagnostic procedures and fault code interpretation for KE-Jetronic and other systems. Procedures Included Maintenance: Scheduled maintenance tasks, oil changes, filter replacements, fluid checks, tune-ups, belt inspections/replacement. Repair: Detailed step-by-step instructions for engine, transmission, suspension, brake, steering, and electrical component repairs. Overhaul: Complete engine and transmission overhaul procedures, including component specifications and tolerances. Diagnostics: Troubleshooting guides for common symptoms and fault diagnosis. Replacements: Component replacement procedures for all major systems. Adjustments: Settings and adjustments for engine timing, idle speed, and various system components. Technical Depth Depth: Factory-level detail, covering basic maintenance to complete engine and transmission rebuilds. Diagnostics Level: Advanced, including diagnostic flowcharts and component testing. Wiring Diagrams: Detailed and accurate electrical wiring diagrams for all vehicle systems. Schematics: Hydraulic, pneumatic, and electronic schematics where applicable. 📊 Manual Specifications File Format File Type: PDF Searchable: Yes (typically OCR'd for keyword searching) Print Quality Resolution: High resolution for clear text and diagrams. Scalability: Printable at various sizes without significant loss of quality. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-Cylinder, SOHC Displacement Liters: 2.6 Bore X Stroke Mm: 82.0 x 80.25 Compression Ratio: 9.2:1 Performance Horsepower Ps: 160 (approx.) Torque Nm: 228 (approx.) Fuel System Fuel Delivery: Bosch KE-Jetronic Electronic Fuel Injection Fuel Type: Unleaded gasoline Ignition Ignition System: Electronic ignition with knock sensor 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (722.4) Optional Transmission Type: 5-Speed Manual (G5/27-5) Features Automatic Features: Lock-up torque converter, electronically controlled hydraulic pressure. Fluid Specs Automatic Transmission Fluid: MB-Approval 236.3 (e.g., Mobil ATF 220, Pentosin ATF 1) Fluid Capacity Automatic Transmission Capacity Liters: Approx. 7.0 (including torque converter) 📐 Dimensions Exterior Length Mm: 4740 Width Mm: 1740 Height Mm: 1430 Wheelbase Mm: 2800 Weights Curb Weight Kg: 1450-1500 (approx., depending on options) Gross Vehicle Weight Kg: 1950 (approx.) Wheels Tires Wheel Bolt Pattern: 5x112 Tire Sizes Standard: 195/65 R15, 205/60 R15 🛡️ Safety Features Ratings Era Safety Focus: High emphasis on passive safety, advanced structural design for its time. Active Features ABS: Standard or optional Anti-lock Braking System (ABS) depending on model year and market. Passive Features Airbags: Driver's side airbag became optional/standard later in the production run. Seatbelts: Pre-tensioning front seatbelts. Body Structure: Reinforced safety cell, energy-absorbing crumple zones. 💡 Technology Features Infotainment Audio System: Factory-installed Becker or Blaupunkt radio/cassette systems, often with optional amplifier and speaker upgrades. Navigation: Navigation systems were not standard and were rare options in this era. Driver Assistance Cruise Control: Optional cruise control system. Connectivity Connectivity Features: Limited connectivity by modern standards; primarily focused on vehicle operation and safety. 🔧 Maintenance Service Intervals Oil Change Interval Km: 10,000 - 15,000 km or 12 months Air Filter Interval Km: 20,000 - 30,000 km Fuel Filter Interval Km: 20,000 - 40,000 km (depending on type) Spark Plug Interval Km: 30,000 - 50,000 km (depending on type) Fluid Specifications Engine Oil Specification: API SJ/SL or ACEA A3/B3, Viscosity 0W-40, 5W-40, 10W-40, 15W-40 (refer to manual for exact MB-Approval) Coolant Specification: MB-Approval 325.0 / 326.0 (Antifreeze/Coolant) Brake Fluid Specification: DOT 3 or DOT 4 Known Issues Wiring Harness: Degradation of the main engine wiring harness insulation (shredded insulation) is a common issue. Head Gasket: Potential for head gasket...