🏷️ Basic Information Identification Make: Mercedes-Benz Model: C280 Year: 1998 Generation Chassis Code: W202 Codes Engine Code: M104.941 👋 Introduction Market Position Segment: Compact Executive Sedan Target Audience: Owners seeking to perform DIY maintenance and repairs, independent repair shops, Mercedes-Benz enthusiasts. Competitive Analysis Competitors: BMW 3 Series (E36), Audi A4 (B5), Lexus ES300, Acura TL. Key Features Differentiation: Renowned Mercedes-Benz build quality, sophisticated engineering, comfort, and performance for its class. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service, repair, diagnostics, and maintenance for the 1998 Mercedes-Benz C280. Page Count Estimated Pages: 1500+ Manual Type Type: Service and Repair Manual Software Original Source: Likely derived from official Mercedes-Benz factory service information. Language Language: English Format Format: Software (likely PDF or proprietary application) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (including M104 inline-6), fuel system, ignition system, exhaust system, cooling system. Drivetrain: Transmission (5-speed automatic 5G-TRONIC 722.6), drivetrain components (driveshafts, differentials). Chassis: Suspension (front and rear), steering system, braking system (including ABS). Electrical: Complete electrical system, wiring diagrams, battery, charging system, starting system, lighting, instrumentation, climate control, power accessories, diagnostic connectors (OBD-II). Body: Body construction, interior and exterior trim, doors, windows, seats, HVAC system. Safety Systems: ABS, ASR (if equipped), SRS (Airbag) system diagnosis. Procedures Included Maintenance: Routine scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement. Troubleshooting: Diagnostic procedures for common and complex issues, fault code interpretation, symptom-based troubleshooting guides. Repair: Step-by-step repair instructions for engine components, transmission, suspension, steering, brakes, electrical systems, and body components. Diagnostics: Detailed diagnostic flowcharts, testing procedures for sensors and actuators, specific diagnostic tools and techniques. Body Repair: Body panel alignment, door hardware repair, window regulator replacement, exterior trim installation/removal. HVAC Repair: Climate control system diagnosis and repair, heater core replacement, A/C compressor and system service. Wheel Tire Spec: Wheel specifications (bolt pattern: 5x112, center bore: 66.5mm), tire size recommendations (e.g., 205/60R15, 205/55R16 depending on trim/options). Torque Specifications: Detailed torque specifications for critical fasteners across all systems (engine, chassis, wheels). Technical Depth Depth: Expert-level, covering everything from basic fluid changes to complete engine and transmission rebuilds, electrical system diagnostics, and component-level repairs. Wiring Diagrams: Comprehensive, color-coded wiring diagrams for all electrical systems. Special Tools: Identification and usage of specialized Mercedes-Benz tools required for certain procedures. 📊 Manual Specifications File Format File Type: Digital Software (likely PDF or searchable database) Print Quality Quality: High-resolution images, diagrams, and text for clarity. Binding Type Binding: Not Applicable (Software) Paper Type Paper: Not Applicable (Software) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, DOHC, 24 valves Displacement: 2.8 Liters (2799 cc) Performance Horsepower: 201 hp @ 5700 rpm Torque: 188 lb-ft (255 Nm) @ 4250 rpm 0 60 Mph: Approximately 7.5 - 8.5 seconds (depending on driver and conditions). Fuel System Fuel Delivery: Electronic Fuel Injection (Bosch Motronic) Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) Engine Management ECM: Bosch Motronic M3.8.1 Airflow Sensor: Hot-film mass airflow sensor (MAF). Throttle Body: Electronic throttle control (ETC) not present in this model; cable-actuated. 🔧 Transmission Standard Type: 5-speed Automatic (722.6 '5G-TRONIC') Optional Type: None for C280 in 1998 Features Gear Ratios: Detailed ratios available in manual for all 5 gears and reverse. Fluid Type: Mercedes-Benz ATF (Automatic Transmission Fluid) Specification 236.10 or 236.12. 📐 Dimensions Exterior Length: 180.1 inches (4575 mm) Width: 67.5 inches (1715 mm) Height: 55.7 inches (1415 mm) Wheelbase: 105.9 inches (2690 mm) Weights Curb Weight: Approximately 3375 lbs (1531 kg) 🛡️ Safety Features Ratings NHTSA Driver Frontal: Not explicitly rated for 1998 model year in all markets, but general safety was high for the era. IIHS Top Safety Pick: Not explicitly designated. Active Features ABS: Standard Anti-lock Braking System (ABS). Traction Control: Optional (ASR - Acceleration Skid Control). Passive Features Airbags: Driver and front passenger airbags. Seat Belts: Front and rear seat belts, pretensioners for front seats. 💡 Technology Features Infotainment Audio System: Optional Mercedes-Benz Audio 10/20 cassette or CD players, with premium sound system options. Navigation: Optional factory-installed navigation system (e.g., APS 30). Driver Assistance Cruise Control: Standard electronic cruise control. Connectivity OBD: OBD-II compliant diagnostic port. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 to 10,000 miles or 12 months (refer to manual for specific conditions and service indicator resets). Major Service Interval: Refer to the 'Service A', 'Service B', etc., indicators in the manual; major services typically occur every 30,000 - 50,000 miles and include spark plug replacement, coolant flush, transmission fluid change, etc. Fluid Specifications Engine Oil: Mobil 1 Synthetic 0W-40 (Mercedes-Benz specification 229.5). Coolant: MB 325.0 (Antifreeze/Coolant, Phosphate-free). Brake Fluid: DOT 4. Power Steering Fluid: Pentosin CHF 11 S or equivalent (MB specification 343.0). Known Issues Common Wear Items: Mass airflow sensor (MAF), ignition coils, blower motor resistor, vacuum leaks, serpentine belt wear, differential seals, oil cooler seals. Electrical...