🏷️ Basic Information Identification Make: Mercedes-Benz Model: 124 Wagon Engine Variant: 300TD Turbo Engine Displacement: 3.0L (2996cc) Model Code: W124 Body Style: Station Wagon (S124) Generation Generation Name: E-Class (First Generation) Codes Engine Code: OM603.961 Chassis Code: S124 👋 Introduction Market Position Positioning: Premium mid-size station wagon known for robust engineering, comfort, and durability. Competitive Analysis Competitors: BMW 5 Series Touring, Audi 100 Avant, Volvo 240/740/940 Wagon Key Features Features: Overhead camshaft diesel engine, optional self-leveling suspension, excellent build quality, spacious cargo area, legendary Mercedes-Benz longevity. Value Proposition Manual Value: Essential resource for maintaining and repairing the iconic W124 Wagon, ensuring optimal performance and longevity. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair Page Count Estimated Pages: 1500+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital PDF (Instant Download) 📖 Manual Coverage Systems Covered Engine: OM603.961 3.0L Turbo Diesel, fuel injection, turbocharging, cooling, lubrication, emission control Transmission: 4-speed Automatic Transmission (722.4) overhaul, diagnostics, and fluid services Drivetrain: Rear-wheel drive, driveshaft, differential, axle shafts Suspension: Front independent suspension (struts, control arms), rear independent suspension (multi-link), springs, shock absorbers, leveling system (if equipped) Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System) components and diagnostics, brake fluid flushing Steering: Power-assisted steering system, steering gear, linkages, fluid maintenance Electrical: Battery, charging system (alternator), starting system (starter), ignition system (glow plugs), lighting, instrumentation, wiring diagrams, fuses, relays Body: Exterior body panels, doors, hood, tailgate, bumpers, interior trim, seating, glass, seals, bodywork repair HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system, climate control, refrigerant servicing, blower motor, heater core, A/C compressor Fuel System: Fuel tank, fuel pump, fuel filter, fuel lines, diesel injection pump and injectors Exhaust System: Exhaust manifolds, catalytic converter, muffler, pipes, emissions control components Procedures Included Maintenance: Routine scheduled maintenance, oil changes, filter replacements, fluid checks and changes, belt tensioning Troubleshooting: Diagnostic charts, symptom-based troubleshooting for common issues Repair: Component replacement, adjustments, rebuilding procedures for major systems Diagnostics: Step-by-step diagnostic procedures for electrical and mechanical faults Technical Depth Depth: Complete overhaul and rebuilding procedures for engine, transmission, and major mechanical components Detail Level: Includes torque specifications, clearances, assembly instructions, and specialized tool requirements 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable PDF for quick information retrieval Print Quality Quality: High-resolution scans suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 5-cylinder Turbocharged Diesel Bore X Stroke: 94.0 mm x 92.3 mm Compression Ratio: 22.0:1 Horsepower: 125 hp @ 4600 rpm (approx.) Torque: 230 Nm (170 lb-ft) @ 2400 rpm (approx.) Performance 0-60 Mph: Approx. 12-14 seconds Top Speed: Approx. 115 mph (185 km/h) Fuel System Injection Type: Bosch VE Rotary Injection Pump with mechanical throttle control and turbocharger boost pressure regulation. Fuel Type: Diesel fuel Fuel Filter Part Number: e.g., Mann Filter WK 80, Mahle KL 131 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (722.4) Optional Optional Transmission: None offered for this specific engine/model combination in these years. Features Transmission Fluid Type: Mercedes-Benz Automatic Transmission Fluid (ATF) specification 236.6 or equivalent Transmission Fluid Capacity: Approx. 7.0 - 8.0 liters (dry fill) 📐 Dimensions Exterior Length: 4740 mm (186.6 in) Width: 1740 mm (68.5 in) Height: 1480 mm (58.3 in) Wheelbase: 2800 mm (110.2 in) Cargo Cargo Volume Seats Up: Approx. 530 liters (18.7 cu ft) Cargo Volume Seats Down: Approx. 1600 liters (56.5 cu ft) Weights Curb Weight: Approx. 1650 kg (3638 lbs) Gross Vehicle Weight Rating: Approx. 2200 kg (4850 lbs) 🛡️ Safety Features Ratings Crash Test Results: No specific ratings available for this era, but known for robust construction and safety engineering typical of Mercedes-Benz. Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Not typically available for this specific model and year. Passive Features Airbags: Driver's side airbag standard from 1987 onwards, potentially optional earlier. Seatbelts: Height-adjustable front seatbelts, rear three-point seatbelts. Body Structure: Reinforced passenger cell, crumple zones. 💡 Technology Features Infotainment Radio: Factory-installed AM/FM radio with cassette player, potentially with upgraded dealer options. Speakers: Typically 4-6 speakers, depending on trim level. Driver Assistance Cruise Control: Optional, electro-mechanical cruise control. Climate Control: Optional automatic climate control (Thermotronic) in addition to standard manual HVAC. Connectivity Connectivity Features: Limited by modern standards; primarily focused on vehicle function and comfort rather than external connectivity. 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 km (6,000 miles) or 12 months, whichever comes first (synthetic oil recommended). Air Filter Replacement: Every 20,000-30,000 km (12,000-18,000 miles). Fuel Filter Replacement: Every 40,000-50,000 km (25,000-30,000 miles). Transmission Fluid Service: Every 80,000-100,000 km (50,000-60,000 miles) (flush and filter replacement recommended). Coolant Flush: Every 2 years or 40,000 km (25,000 miles). Fluid Specifications Engine Oil Spec: API CD or CE, MB-Approval 228.1 / 228.3 (e.g., Castrol GTX 15W-40, Mobil Delvac...