🏷️ Basic Information Identification Make: Mercedes-Benz Model: 300SDL Chassis Code: W126 Model Years Covered: 1986-1987 👋 Introduction Market Position Target Audience: Owners of Mercedes-Benz W126 300SDL vehicles seeking to perform maintenance and repairs, and professional automotive technicians. Value Proposition Dealer Equivalence: Identical to the manuals used by authorized Mercedes-Benz dealer technicians. Key Features Diy Suitability: Perfectly suited for the Do-It-Yourself (DIY) individual with a passion for maintaining their vehicle. Comprehensiveness: The manual's key feature is its unparalleled comprehensiveness, mirroring dealer-level service information. Content Summary Coverage Summary: Covers all service and repair imaginable, including engine, brakes, suspension, seats, exterior trim, and much more. 📋 Manual Details Coverage Manual Type: Factory Workshop Service Repair Manual Language: English Coverage Scope: Comprehensive service and repair for all imaginable tasks, from basic maintenance to complete component rebuilds. Format File Format: HTML/Flash Menu with PDF Compatibility: Windows (95/98/ME/XP/Vista/Win7), Linux, macOS Page Count Estimated Page Count: Extensive, likely hundreds of pages, as it covers 'every service and repair imaginable'. 📖 Manual Coverage Systems Systems Covered: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Fuel System, Cooling System, Exhaust System, Electrical System, Climate Control, Body & Interior, Safety Systems, Diagnostic Procedures. Procedures Procedures Included: Routine maintenance, detailed repair procedures, troubleshooting guides, diagnostic flowcharts, component replacement, adjustments, specifications, and torque values. Depth Technical Depth: Factory-level diagnostics, in-depth repair, and complete overhaul procedures, suitable for professional technicians and advanced DIY enthusiasts. Specific Procedures Engine Rebuild Scope: Detailed procedures for engine disassembly, inspection, repair, and reassembly, including piston ring replacement, bearing checks, valve guide service, etc. Transmission Rebuild Scope: Comprehensive coverage for automatic transmission overhaul, including torque converter service, clutch pack replacement, valve body diagnostics, and hydraulic system checks. Brake System Details: Procedures for brake pad and rotor replacement, caliper servicing, brake fluid flush, ABS system diagnostics, and parking brake adjustments. Suspension And Steering Repairs: Detailed instructions for replacing control arms, ball joints, tie rod ends, shocks/struts, and steering gearbox servicing. Electrical Troubleshooting: Diagnostic charts, wiring diagrams, and component testing procedures for the entire electrical system, including lighting, ignition, starting, charging, and comfort systems. Body And Interior Repair: Procedures for removing and installing exterior trim, interior panels, seats, door mechanisms, and body panel repair. Technical Depth Diagnostic Tools: Information is presented in a way that allows for diagnosis using standard automotive tools and methods, often referencing specialized Mercedes-Benz tools. 📊 Manual Specifications File Attributes Searchability: Likely includes searchable PDF content for efficient information retrieval. Presentation Menu Interface: HTML/Flash menu for navigation, providing an organized user experience. Media Type Delivery Method: Free Download (No Shipping Cost) ⚙️ Engine Specifications Identification Primary Engine: OM603.960 Configuration Engine Type: Inline 6-cylinder Diesel Displacement Engine Displacement Liters: 3.0 Engine Displacement Cc: 2999 Performance Horsepower Ps: 147 (approx.) Torque Nm: 275 (approx.) Fuel System Fuel Injection: Bosch Direct Injection, Indirect Injection (depending on specific market/variant, OM603 typically direct) with turbocharging. Turbocharger Turbocharger System: Yes, Garrett AiResearch turbocharger with intercooler. Turbocharger Model Example: Garrett T3 Cooling Cooling System: Pressurized liquid cooling system. Oil Engine Oil Specification: MB 229.1 or approved equivalent (e.g., 15W-40 or 20W-50 diesel engine oil) Maintenance Oil Change Interval Km: 7,500-10,000 km (or as per manual) Oil Filter Part Number Example: Mann-Filter MH 6 🔧 Transmission Identification Transmission Type: 4-Speed Automatic Transmission Transmission Model: 722.3 (e.g., 722.365) Features Transmission Features: Lock-up torque converter, electronic control (early stages), sport/economy modes. Fluid Transmission Fluid Specification: MB 236.1 (e.g., Dexron II or equivalent) Maintenance Transmission Fluid Capacity Liters: 8.0 (approx., dry fill) Transmission Service Interval Km: 50,000-60,000 km (or as per manual) 📐 Dimensions Exterior Length Mm: 4965 Width Mm: 1798 Height Mm: 1427 Weights Curb Weight Kg: 1730 (approx.) Gross Vehicle Weight Rating Kg: 2250 (approx.) Wheels Tires Wheel Bolt Pattern: 5x112 Standard Tire Size: 205/65R15 Wheel Size Standard: 15x6.5 inches 🛡️ Safety Features Features Airbags: Driver's airbag standard for this period. ABS: Standard Anti-lock Braking System (ABS) Seatbelts: 3-point inertia-reel seatbelts front and rear. Crumple Zones: Advanced body structure with crumple zones. Headrests: Adjustable headrests front and rear. 💡 Technology Features Infotainment Audio System: Factory premium sound system, often with cassette player and analog tuning radio. Climate Control Climate Control System: Automatic Climate Control (ACC) with dual-zone temperature control. Driver Assistance Cruise Control: Standard cruise control system. Comfort Features Seat Adjustment: Power adjustable front seats with memory function for driver's seat. Windows: Power windows, power sunroof. 🔧 Maintenance Service Intervals General Service Interval Km: Typically every 10,000-15,000 km or annually. Diesel Filter Replacement Km: Recommend replacement every 20,000-30,000 km. Fluid Specifications Coolant Specification: MB 325.0 (Propylene Glycol based coolant) Brake Fluid Specification: DOT 4 Power Steering Fluid Specification: MB 236.3 (Dexron II or equivalent) Differential Fluid Specification: GL-5 Hypoid Gear Oil (Viscosity typically SAE 80W-90) Known Issues Common Issues Engine: Glow plug failure, injector wear, vacuum line degradation, potential head gasket issues on high-mileage units. Common Issues Suspension:...