🏷️ Basic Information Identification Make: Mercedes-Benz Model: 260 E Chassis Code: W124 Generation: First Generation (W124) Model Years Covered: 1987, 1988, 1989 👋 Introduction Market Position Class: Executive Sedan Segment: E-segment Competitive Analysis Key Competitors: BMW 5 Series (E28/E34), Audi 100 (C3), Volvo 700 Series, Jaguar XJ6. Key Features Design Philosophy: Robust build quality, elegant styling, advanced engineering for its time, emphasis on comfort and durability. Target Audience: Professionals, executives, and discerning drivers seeking a luxurious, reliable, and well-engineered German automobile. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair for Mercedes-Benz 260 E (W124) models from 1987-1989. Page Count Estimated Page Count: Hundreds to thousands (specific count not provided, but implied to be substantial). Manual Type Type: Official Factory Service Repair Manual Language Language: English Format Digital Format: PDF Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip (or equivalent unzipper for larger files) 📖 Manual Coverage Systems Covered Mechanical Systems: Engine service/repair, Transmission service/repair, Brake System, Suspension, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, Differential/Drive, Axle. Electrical Systems: Wiring Diagrams, Electrical System, Engine Control System. Comfort And Convenience: Heater/Air Conditioning, Interior. Body And Safety: Chassis/Body, Restraint System. Procedures Included Maintenance: General Maintenance, Periodic Lubrication, Tyre Rotation. Repair And Diagnostics: Troubleshooting, Engine Repair, Transmission Repair, Brake System Repair, Suspension Repair, Steering Repair, Cooling System Repair, Fuel System Repair, Electrical System Diagnosis and Repair, Emission System Diagnosis and Repair, Chassis and Body Repair, Restraint System Repair. Technical Depth Depth: Detailed technical data, circuits, diagrams, equipment information, suitable for technicians, mechanics, and enthusiasts. Covers all aspects from basic maintenance to advanced repair. 📊 Manual Specifications File Format Print Quality: GREAT QUALITY printable pages. Binding Type Binding: Not applicable (digital download). Paper Type Paper Type: Not applicable (digital download). ⚙️ Engine Specifications Primary Engine Engine Code: M103.940 (typically) Engine Configuration: Inline 6-cylinder, SOHC Displacement: 2.6 Liters (2599 cc) Performance Horsepower SAE Net: 160 hp @ 5800 rpm (approximate) Torque SAE Net: 177 lb-ft @ 4400 rpm (approximate) Fuel System Fuel Delivery: Bosch KE-Jetronic Fuel Injection (Electronic Ignition, Mechanical Fuel Distribution) Fuel Type Fuel Requirement: Unleaded Premium Gasoline (91+ octane) Cooling System Coolant Type: Mercedes-Benz specification coolant (e.g., MB 325.0) or equivalent with a 50/50 mix with distilled water. 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (e.g., 722.4) Optional Transmission Type Optional: 5-Speed Manual Transmission (less common in North America) Features Automatic Features: Selectable shift modes (e.g., Economy/Standard). Fluid Specifications Automatic Transmission Fluid: MB 236.2, MB 236.6, or MB 236.7 (e.g., Dexron II-E or Mercon equivalent). Refer to manual for precise specification. 📐 Dimensions Exterior Wheelbase: 2800 mm (110.2 inches) Length: 4740 mm (186.6 inches) Width: 1750 mm (68.9 inches) Height: 1430 mm (56.3 inches) Weights Curb Weight: Approximately 1500-1550 kg (3300-3400 lbs) Gross Vehicle Weight Rating: Refer to vehicle placard (typically around 2000-2100 kg) Wheels And Tires Standard Tire Size: 195/65 R15 Wheel Bolt Pattern: 5x112 Wheel Offset: ET 37 (typical) 🛡️ Safety Features Ratings Crash Test Performance: While specific NHTSA/IIHS ratings for these exact years might be scarce, the W124 chassis was renowned for its robust safety engineering, including a strong safety cell and energy-absorbing crumple zones. Active Features Braking System: Front: Ventilated Disc Brakes, Rear: Disc Brakes. Anti-lock Braking System (ABS) was standard or optional depending on market and trim. Passive Features Airbags: Driver's airbag became increasingly common during this period; availability might vary by market and model year. Passenger airbag typically not available for these early W124 models. Seatbelts: Pre-tensioners for front seatbelts. Chassis Construction: Integrated safety structure with high-strength steel, designed for excellent occupant protection. 💡 Technology Features Infotainment Audio System: Factory-fitted Mercedes-Benz audio systems, typically AM/FM radio with cassette player. Optional CD changers available later in the generation. Driver Assistance Cruise Control: Standard or optional, depending on market and trim level. Connectivity Connectivity Features: Limited by era. No modern Bluetooth or USB connectivity. Factory telephone options might have been available. Climate Control HVAC System: Manual or automatic climate control (optional on many models). Effective heating and ventilation system. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 - 15,000 km (6,000 - 10,000 miles) or annually, whichever comes first. Consult the specific manual for exact intervals based on driving conditions. Major Service Interval: Major service points often around 60,000 km (37,000 miles) or 4 years, including spark plugs, fuel filter, air filter, and potential transmission service. Fluid Specifications Engine Oil Type: SAE 15W-40 or 10W-40 API SG or higher. Consult the manual for precise MB specifications. Engine Oil Capacity: Approximately 7.0 Liters (7.4 US quarts) with filter change. Coolant Capacity: Approximately 8.0 Liters (8.5 US quarts). Brake Fluid: DOT 3 or DOT 4. Known Issues Common W124 Issues: Head gasket leaks, valve cover gasket leaks, wiring harness degradation (especially insulation), vacuum hose deterioration, rust in common areas (wheel wells, door...