🏷️ Basic Information Identification Make: Mercedes-Benz Model: W124 260E & 300E 2.6 Chassis Code: W124 Body Style: Sedan Model Years Covered: 1987-1992 Generation Generation Code: First Generation W124 (E-Class) Codes Engine Code 260E: M103.940 Engine Code 300E 2.6: M103.942 👋 Introduction Market Position Market Segment: Luxury Mid-size Sedan (Executive Car) Competitive Analysis Competitors: BMW 5 Series (E34), Audi 100/200, Volvo 740/760, Saab 9000. Key Features Design Philosophy: Emphasis on build quality, safety, comfort, and advanced engineering for the era. Manual Advantage: Provides detailed, official factory information for DIY enthusiasts and professional mechanics, ensuring accurate repairs and maintenance. 📋 Manual Details Coverage Areas Coverage: Comprehensive Service and Repair Page Count Page Count: Hundreds of pages Manual Type Manual Type: Official Full Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, timing belt, head gasket, lubrication system, cooling system, fuel injection system, emission control systems. Engine Management: Engine control unit (ECU) diagnosis and repair, sensor testing, actuator diagnostics, fuel delivery system. Transmission: Automatic transmission service and repair (e.g., 722.3, 722.4), clutch service, torque converter, shift linkage adjustments. Suspension: Front and rear suspension components, shock absorbers, springs, control arms, bushings, steering linkage. Brakes: Brake system diagnosis and repair, ABS (Anti-lock Braking System) service, brake fluid replacement, caliper and rotor replacement. Electrical System: Full electrical system diagnosis and repair, wiring diagrams, component testing, starter, alternator, battery system, lighting, instruments. Body And Interior: Bodywork repair, door mechanisms, window regulators, seating systems, interior trim, HVAC (Heating, Ventilation, and Air Conditioning) system. Procedures Included Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, coolant flush, brake fluid flush, tire pressure checks, lubrication points. Troubleshooting: Systematic diagnosis of common and uncommon problems, diagnostic codes, symptom-based troubleshooting for engine, transmission, and electrical issues. Repair: Step-by-step instructions for component removal, installation, and repair for all major vehicle systems. Technical Depth Depth: Extensive, covering everything from basic maintenance to complete engine and transmission rebuilds, with detailed diagnostic procedures. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Printable without restriction Binding Type Binding Type: Digital (Downloadable PDF) Paper Type Paper Type: N/A (Digital) Searchability Searchable Text: Likely searchable due to PDF format, enhancing ease of finding information. Requirements Software Requirements: Adobe PDF Reader is essential. WinRar or similar archive utility may be needed for extraction. Flash Player is typically not required for standard PDFs. ⚙️ Engine Specifications Primary Engine Engine Type 260E: Inline 6-cylinder, SOHC (Single Overhead Camshaft), M103.940 Engine Type 300E 2.6: Inline 6-cylinder, SOHC (Single Overhead Camshaft), M103.942 Displacement Displacement 260E: 2.6 Liters (2599 cc) Displacement 300E 2.6: 2.6 Liters (2599 cc) Performance Horsepower 260E: Approx. 160 hp @ 5700 rpm Torque 260E: Approx. 228 Nm (168 lb-ft) @ 4400 rpm Horsepower 300E 2.6: Approx. 160 hp @ 5700 rpm (shared with 260E due to same engine displacement) Torque 300E 2.6: Approx. 228 Nm (168 lb-ft) @ 4400 rpm (shared with 260E) Fuel System Fuel Injection System: Bosch KE-Jetronic (Mechanical/Electronic hybrid fuel injection) Ignition System Ignition System: Electronic Ignition (CDI - Capacitor Discharge Ignition) Cooling System Cooling System: Liquid-cooled, with thermostat and fan clutch. 🔧 Transmission Standard Transmission Type Standard: 4-speed Automatic Transmission (e.g., 722.3) Optional Transmission Type Optional: 5-speed Manual Transmission (less common in US market) Features Transmission Features: Hydraulic torque converter, electronic control for automatic transmission (later models), sport/economy modes (on some automatic variants). 📐 Dimensions Exterior Length: Approx. 4740-4760 mm (depending on specific variant) Width: Approx. 1740 mm Height: Approx. 1430 mm Wheelbase Wheelbase: Approx. 2795 mm Weights Curb Weight: Approx. 1450-1550 kg (depending on transmission and options) Gross Vehicle Weight Rating: Varies by model, consult specific VIN documentation. 🛡️ Safety Features Ratings Safety Rating Era: Designed with high safety standards for its time, often praised for robust construction. Active Features ABS: Standard on most models (Anti-lock Braking System). Traction Control: Optional on some later models (ASR - Acceleration Skid Control). Passive Features Airbags: Driver airbag standard from 1990 onwards; optional for earlier models. Passenger airbag optional. Seatbelts: Front and rear seat belts, automatic front seat belt presenters (on some models). Chassis Construction: Reinforced body structure for occupant protection. 💡 Technology Features Infotainment Audio System: Factory-installed radio/cassette players, often with options for CD changers. Sound systems varied by trim and options. Climate Control: Manual HVAC controls, optional automatic climate control (THERMATIC or THERMOTRONIC on higher trims). Driver Assistance Cruise Control: Optional cruise control system. Connectivity Connectivity Features: Limited by modern standards; primarily focused on vehicle mechanics and basic comfort features. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000-15,000 km or 12 months, depending on driving conditions and oil used. Transmission Fluid Change: Recommended every 50,000-80,000 km for automatic transmissions. Coolant Replacement: Typically every 2-3 years or 40,000-60,000 km. Spark Plug Replacement: Consult manual; typically 40,000-60,000 km for standard plugs,...