🏷️ Basic Information Identification Make: Mercedes-Benz Model: C280 Year: 1999 Codes Chassis Code: W202 Engine Code Typical: M104.941 👋 Introduction Market Position Positioning: The Mercedes-Benz C280 of 1999 represented the upper-mid tier of the compact executive sedan segment, offering a blend of performance, luxury, and Mercedes-Benz engineering prowess. Competitive Analysis Competitors: Competed directly with vehicles like the BMW 328i (E46), Audi A4, Lexus ES 300, and Cadillac Catera. Key Features Vehicle Appeal: Known for its refined ride, robust build quality, powerful inline-six engine, and sophisticated interior appointments. Manual Value Proposition Value: This manual provides the essential technical documentation needed for accurate diagnostics, maintenance, and repairs, empowering owners and independent technicians to maintain this premium vehicle effectively. 📋 Manual Details Coverage Areas Coverage: Complete service and repair procedures for 1999 Mercedes-Benz C280 (W202 chassis). Page Count Page Count: Estimated 1000+ pages (typical for comprehensive MB service manuals of this era). Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: Digital (PDF) - Likely searchable and printable 📖 Manual Coverage Systems Covered Engine: Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, emissions control, engine management (ECU). Transmission: Automatic transmission (5-speed 5G-TRONIC) - diagnostics, overhaul, fluid service. Drivetrain: Driveshafts, differentials, axles. Suspension: Front and rear suspension, springs, shock absorbers, control arms, anti-roll bars, wheel alignment. Steering: Power steering system, steering gearbox, linkages, steering column. Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), brake fluid, components, diagnostics. Electrical System: Battery, charging system (alternator), starter, lighting, fuses, relays, wiring diagrams, components. Body And Chassis: Body panels, doors, windows, locks, exterior trim, interior trim, structural components. Climate Control: HVAC system, air conditioning, heating, ventilation, blower motor, components. Safety Systems: Airbags, seat belts, SRS (Supplemental Restraint System). Diagnostics: Troubleshooting procedures, diagnostic trouble codes (DTCs), OBDI/OBDII interface information. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement. Repair: Component removal and installation, major component overhauls (engine, transmission), brake system repairs, suspension and steering repairs. Troubleshooting: System-specific diagnostic flowcharts, symptom-based troubleshooting, electrical circuit analysis. Diagnostics: OBDII scanning, sensor testing, actuator testing, ECU troubleshooting. Technical Specifications: Torque specifications, clearances, fluid capacities, electrical resistance values, diagnostic parameter data. Technical Depth Depth: Comprehensive - Covers routine maintenance to complete engine and transmission rebuilds, including electrical system diagnostics and body repairs. 📊 Manual Specifications File Format Format: PDF Searchability: Text-searchable for quick information retrieval. Print Quality Quality: High-resolution scans of original factory documentation, ensuring clarity of text and diagrams. Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, naturally aspirated Engine Code: M104.941 Displacement: 2799 cc (2.8 Liters) Bore X Stroke: 89.9 mm x 73.5 mm Compression Ratio: 10.0:1 Performance Horsepower: 194 hp @ 5500 rpm (SAE Net) Torque: 206 lb-ft @ 3700 rpm (SAE Net) Fuel System Fuel Delivery: Bosch Motronic M5.2 Electronic Fuel Injection Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Management Ignition System: Distributorless Ignition System (DIS) with coil-on-plug or coil packs Emission Control: Catalytic converter, secondary air injection (depending on market), EGR (less common on M104). 🔧 Transmission Standard Transmission Type: 5-speed Automatic (5G-TRONIC, 722.6) Optional Manual Transmission: Not typically offered for the C280 in this model year for the North American market. Primarily available with the automatic. Features Torque Converter Lockup: Yes Transmission Fluid: MB Spec 236.10 or 236.12 (e.g., Pentosin ATF1, Mobil ATF 134) - Crucial to use the correct fluid. Gear Ratios Gear Ratios: Specific ratios detailed within the manual (e.g., 1st: 3.93, 2nd: 2.39, 3rd: 1.57, 4th: 1.00, 5th: 0.73, Reverse: 3.16) 📐 Dimensions Exterior Length: Approx. 177.7 inches (4513 mm) Width: Approx. 67.5 inches (1715 mm) Height: Approx. 54.7 inches (1390 mm) Wheelbase: Approx. 106.5 inches (2705 mm) Weights Curb Weight: Approx. 3350 - 3450 lbs (1520 - 1565 kg), varies by equipment Gross Vehicle Weight Rating: Approx. 4586 lbs (2080 kg) Cargo Trunk Capacity: Approx. 14.5 cubic feet (410 Liters) Wheels Tires Wheel Bolt Pattern: 5x112 mm Typical Tire Size: 205/60R15 or 205/55R16 (depending on trim/options) 🛡️ Safety Features Ratings NHTSA Frontal Impact: 4-star driver, 4-star passenger (for 1999 model year, based on available data for W202 platform) IIHS Side Impact: Good (for similar models, specific W202 data may vary) Active Features ABS: Standard Anti-lock Braking System Traction Control: Often standard (ASR - Acceleration Slip Regulation) Passive Features Airbags: Driver and front passenger airbags, optional side airbags (SRS). Seatbelts: 3-point inertia-reel seat belts with front-belt tensioners. 💡 Technology Features Infotainment Audio System: Original systems were typically AM/FM cassette or CD players with optional premium sound systems (e.g., Bose). Navigation: Optional Becker or Mercedes-Benz navigation systems were available, often with a trunk-mounted head unit and dash-mounted screen. Driver Assistance Cruise Control: Standard electronic cruise control. Parking Sensors: Optional Parktronic...