🏷️ Basic Information Identification Make: Buick Model: Century Year: 2003 Codes Platform Code: W-body 👋 Introduction Market Position Segment: Mid-size sedan Competitive Analysis Key Competitors: Chevrolet Impala, Ford Taurus, Dodge Intrepid, Toyota Camry, Honda Accord Key Features Target Demographic: Families, commuters, value-conscious buyers Historical Relevance: Continuation of a long-standing nameplate known for comfort and practicality 📋 Manual Details Coverage Areas Vehicle Coverage: All 2003 Buick Century models Page Count Estimated Page Count: Varies (typically 300-600 pages for a full owner's manual; service manuals are significantly larger) Manual Type Type: Owner's Manual / Service Repair Guide (as described in product info) Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, transmission, exhaust, fuel system, cooling system, ignition system, starting and charging system Chassis: Suspension (front and rear), steering system, brake system (including ABS), wheels and tires Electrical: 12V battery system, charging system, starting system, lighting, instruments and indicators, body electrical features (power windows, locks, mirrors), infotainment system, climate control system electrical components Body: Body construction, exterior trim, interior trim, doors, windows, seats, safety restraints (airbags, seatbelts) Procedures Included Maintenance: Scheduled maintenance, fluid checks and changes, filter replacements, tire rotation, battery maintenance Troubleshooting: Diagnostic charts for common problems, symptom-based troubleshooting guidance Repair: Step-by-step repair instructions for major components and systems Diagnostics: Information on diagnostic codes, testing procedures for electrical and mechanical components Technical Depth Depth: Comprehensive; covers basic owner information to advanced repair and diagnostic procedures for professional technicians 📊 Manual Specifications File Format Digital Delivery: Instant PDF download Compatibility: Windows, Linux, Mac; requires PDF reader Print Quality Printability: Printable on any computer and printer; no restrictions Binding Type Binding: Not applicable (digital download) Paper Type Paper: Not applicable (digital download) ⚙️ Engine Specifications Primary Engine Engine Code: 3100 SFI V6 (RPO L82) Displacement: 3.1 L (189 cu in) Configuration: V6 Horsepower: 175 hp @ 5200 rpm Torque: 195 lb-ft @ 4000 rpm Performance Fuel Delivery: Sequential Fuel Injection (SFI) Emission Controls: Catalytic converter, EGR (Exhaust Gas Recirculation), OBD-II (On-Board Diagnostics II) Fuel System Fuel Type: Unleaded Gasoline (87 octane recommended) Fuel Tank Capacity: 17 gallons (approx.) 🔧 Transmission Standard Transmission Type: 4-speed automatic (4T65-E) Optional Optional Transmission: N/A for 2003 model year Features Transmission Features: Electronically controlled, overdrive, torque converter lock-up 📐 Dimensions Exterior Length: 196.2 inches Width: 70.3 inches Height: 55.7 inches Wheelbase: 109.0 inches Weights Curb Weight: 3,260 - 3,410 lbs (approx.) Cargo Trunk Volume: 16.2 cu ft 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 4 Stars (driver and passenger) NHTSA Side Impact Rating: Not rated or 3 Stars (depending on specific configuration and testing era) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Optional Traction Control System (TCS) Passive Features Airbags: Driver and front passenger airbags Seat Belts: Three-point seatbelts for all seating positions, front seatbelt pretensioners 💡 Technology Features Infotainment Audio System: AM/FM stereo with cassette and CD player options, optional premium sound system Climate Control: Manual climate control standard, optional automatic climate control Driver Assistance Cruise Control: Standard cruise control Connectivity Remote Keyless Entry: Optional remote keyless entry system 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (using synthetic blend or synthetic oil) Tire Rotation Interval: Every 7,500 miles Spark Plug Replacement: 100,000 miles (typically platinum or iridium) Fluid Specifications Engine Oil Type: SAE 3.10W-30 (API Service SG or higher) Engine Oil Capacity: 4.0 quarts (with filter) Transmission Fluid Type: Dexron-III (or Dexron-VI compatible) Transmission Fluid Capacity: 8.1 quarts (dry fill), 4.0-5.0 quarts (fluid change) Coolant Type: Ethylene Glycol based coolant, orange color (GM P/N 1052877 or equivalent) Brake Fluid Type: DOT 3 Known Issues Intake Manifold Gaskets: Leaking intake manifold gaskets (especially on the 3100 V6) can lead to coolant and oil leaks. Transmission Hard Shifts: The 4T65-E transmission can sometimes develop hard shifting issues due to solenoid problems or fluid degradation. Window Regulators: Power window regulators are a common failure point. Idler Arm: Wear in the idler arm can lead to steering looseness and premature tire wear. 📚 Vehicle History Brand Heritage Brand Origin: American automotive brand founded by David Dunbar Buick in 1899 Model Evolution Generations: The 2003 model is part of the fourth generation of the Buick Century, which began in 1997. Platform Basis: Based on General Motors' W-body platform, shared with other GM sedans like Chevrolet Impala and Lumina. Production Manufacturing Location: Mainly Fairfax Assembly in Kansas City, Kansas, USA 🏆 Awards & Recognition Recognitions Industry Awards: Generally recognized for comfortable ride and quiet interior for its class and price point during its production run. Specific awards not widely documented.