🏷️ Basic Information Identification Make: Mercedes-Benz Model: C-Class Model Code: W203 Year: 2003 Trim: C230 Kompressor Sport Codes Engine Code: M271.948 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Brand Philosophy: Represents Mercedes-Benz's commitment to luxury, safety, and performance in a more accessible package. Competitive Analysis Competitors: BMW 3 Series (E46), Audi A4 (B6), Lexus IS300, Infiniti G35 Key Features Sport Package: Reflects a sportier tuning, potentially including suspension upgrades, unique wheels, and styling cues. Kompressor Engine: Supercharged engine offering a blend of performance and efficiency. 📋 Manual Details Coverage Areas Primary Coverage: Owner's Operations and Maintenance Secondary Coverage: Basic Maintenance, Specifications, Customer Assistance Page Count Estimated Pages: 300-400 (typical for this model/era) Manual Type Type: Factory Owner's Manual Language Language: English Format Format: Digital PDF 📖 Manual Coverage Systems Covered Instrument Cluster: Indicator lights, gauges, warning messages Entertainment Systems: Audio system operation, radio, CD player, speaker layout Climate Controls: HVAC system operation, automatic climate control, air recirculation Lighting: Headlights, taillights, interior lighting, fog lamps, adaptive lighting features Driver Controls: Steering wheel functions, cruise control, turn signals, wipers Locks And Security: Keyless entry, central locking, immobilizer, alarm system Seating And Safety Restraints: Seat adjustment, seat belts, SRS airbags, child seat installation (ISOFIX/LATCH) Driving: Starting and stopping the engine, gear selection, parking brake, driving aids (e.g., ESP, ABS) Engine Compartment: Component identification, fluid level checks Maintenance And Specifications: Scheduled maintenance, fluid types, capacities, tire pressure, part numbers Fuel Information: Recommended fuel octane, fueling procedure Cleaning: Exterior and interior cleaning recommendations Customer Assistance: Contact information, roadside assistance, warranty information Reporting Safety Defects: US-specific information on reporting defects Procedures Included Routine Maintenance: Checking oil, coolant, brake fluid; tire inflation; wiper blade replacement Troubleshooting: Understanding warning lights and indicators, basic fault diagnosis Operation: Detailed instructions on how to use all vehicle systems Technical Depth Depth: Comprehensive for owner operations, fluid checks, and basic maintenance. Does not cover in-depth mechanical repair or diagnostics. 📊 Manual Specifications File Format Compatibility: Requires PDF reader (e.g., Adobe Acrobat Reader, Foxit Reader) Print Quality Resolution: High-resolution, clear text and images Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Supercharged Inline-4 Cylinder Displacement: 1.8 Liters (1796 cc) Bore X Stroke: 82.0 mm x 85.0 mm (approx.) Compression Ratio: 8.8:1 Valvetrain: DOHC, 4 valves per cylinder, Variable Valve Timing (VVT) Performance Horsepower: 189 hp @ 5,500 rpm Torque: 200 lb-ft @ 3,000-4,500 rpm Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) with supercharger Fuel Information Recommended Fuel: Premium Unleaded (91 octane or higher) Refill Capacities Engine Oil Capacity: 5.3 quarts (5.0 liters) with filter change (approx.) Lubricant Specifications Engine Oil Spec: MB 229.5 (SAE 0W-40 or 5W-40) Air Filters Part Number Air Filter: A2710900101 (example, verify with VIN) 🔧 Transmission Standard Transmission Type: 6-speed Manual Optional Transmission Type: 5-speed Automatic (722.6, NAG1) Features Automatic Features: Touchshift, Driver-adaptive shifting program Refill Capacities Automatic Transmission Fluid Capacity: 7.5 quarts (7.0 liters) (approx., dry fill) Lubricant Specifications Automatic Transmission Fluid Spec: MB 236.10 or MB 236.12 (e.g., Mobil ATF 134) 📐 Dimensions Exterior Length: 174.0 inches (4420 mm) Width: 68.5 inches (1740 mm) Height: 55.8 inches (1417 mm) Wheelbase: 106.7 inches (2710 mm) Weights Curb Weight: 3,240 - 3,360 lbs (1470 - 1525 kg) (approx., depending on transmission) Gross Vehicle Weight Rating: 4,520 lbs (2050 kg) (approx.) Cargo Trunk Volume: 13.1 cubic feet (370 liters) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for driver and passenger, 2003 model year tests) IIHS Front Offset: Good (for 2003 model year) Active Features Traction Control: ASR (Acceleration Slip Regulation) Stability Control: ESP (Electronic Stability Program) Braking: ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), BAS (Brake Assist) Passive Features Airbags: Frontal airbags, front side-impact airbags, front and rear side curtain airbags (optional) Seat Belts: 3-point active front seat belts with pre-tensioners and force limiters, rear 3-point seat belts Child Restraint Iso Fix: ISOFIX/LATCH mounting points in rear seats 💡 Technology Features Infotainment Head Unit Options: Various Audio 20, Audio 30, and COMAND APS systems available depending on original specification. Features may include CD player, radio, cassette player (early models), navigation (COMAND). Speaker System: Standard 6-speaker system, optional Harman Kardon surround sound Driver Assistance Cruise Control: Standard cruise control, electronic speed limiter Parking Assistance: Parktronic (optional parking sensors front and rear) Connectivity Bluetooth: Optional MHI (Mobile Handset Interface) for Bluetooth connectivity on some models/options. 🔧 Maintenance Service Intervals Oil Change Interval: Flexible service system (ASSYST), typically 10,000 - 15,000 miles or 12 months, depending on driving conditions and oil used. Consult manual for specific ASSYST display messages. Major Service Intervals: Spark plugs (around 60,000 miles), serpentine belt, coolant flush (around 30,000-60,000 miles), transmission fluid/filter service (around 40,000-60,000 miles) Fluid Specifications Coolant Type: Mercedes-Benz Approved Antifreeze (Glysantin G48, blue) - 50/50 mix with distilled water Brake Fluid...