🏷️ Basic Information Identification Make: Cadillac Model: STS Year: 2005 Generation Generation Designation: Second Generation (Second Facelift) Platform: GM Sigma platform Codes Chassis Code: VBS 👋 Introduction Market Position Segment: Luxury Mid-size Sedan Competitors: BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Lexus GS Key Features Vehicle Focus: Performance, luxury, advanced technology, comfortable ride Manual Value Proposition: Empowers owners to perform their own maintenance and repairs, saving significant costs and ensuring proper upkeep. Manual Ease Of Use: Features step-by-step instructions and clear illustrations for accessible DIY repairs. 📋 Manual Details Coverage Areas Primary Coverage: All models, engines, trim levels, and transmission types for the 2005 Cadillac STS Secondary Coverage: Full service, repair, maintenance, troubleshooting, and diagnostic procedures Page Count Estimated Page Count: Extensive (typically 2000+ pages for a complete workshop manual) Manual Type Type: Complete Workshop Service Repair Manual Language Language: English Format Delivery Format: Downloadable Digital File (PDF) Accessibility: Printable, viewable on PC, MAC, tablets, and smartphones 📖 Manual Coverage Systems Covered Powertrain: Engine (4.6L Northstar V8, 4.6L DI Northstar V8), Transmission (5-speed automatic 5L50-E), Drivetrain (RWD, AWD) Chassis: Suspension (front & rear), Steering, Brakes (ABS, traction control, stability control), Wheels & Tires Electrical: Body Control Module (BCM), Powertrain Control Module (PCM), HVAC, Infotainment, Lighting, Power Accessories, SRS (Airbag) System, Diagnostic Trouble Codes (DTCs) Body: Body Panels, Doors, Windows, Seats, Interior Trim, Exterior Trim, Glass Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and changes, spark plugs, belts, battery service Repair: Engine mechanical, transmission overhaul, brake component replacement, suspension strut/shock replacement, steering rack replacement, electrical component diagnosis and replacement Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting guides, electrical schematics, component testing procedures Diagnostics: OBD-II diagnostics, scan tool data interpretation, sensor data analysis, actuator testing Technical Depth Depth: Comprehensive from basic maintenance to complex system diagnostics and overhauls Detail Level: Step-by-step instructions with detailed diagrams and illustrations 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Software Requirement: Adobe Acrobat Reader (free download) Print Quality Printability: High-quality, printable pages for individual sections or the entire manual Binding Type Digital Binding: Not Applicable (Digital Download) Paper Type Digital Paper Type: Not Applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code 1: LD8 (4.6L Northstar V8) Engine Displacement 1: 4.6 Liters / 281 cubic inches Engine Configuration 1: V8, 90-degree bank angle Engine Horsepower 1: Approx. 275-290 hp @ 6000 rpm (depending on specific tune) Engine Torque 1: Approx. 300-305 lb-ft @ 4400 rpm (depending on specific tune) Fuel Induction 1: Multi-port Fuel Injection (MPFI) Valvetrain 1: Dual Overhead Camshafts (DOHC), 4 valves per cylinder Secondary Engine Engine Code 2: LC3 (4.6L DI Northstar V8 - Direct Injection) Engine Displacement 2: 4.6 Liters / 281 cubic inches Engine Horsepower 2: Approx. 320 hp @ 6400 rpm Engine Torque 2: Approx. 315 lb-ft @ 4400 rpm Fuel Induction 2: Direct Injection (DI) Fuel System Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher recommended for optimal performance) 🔧 Transmission Standard Type Standard: 5-speed automatic Transmission Code Standard: 5L50-E Optional Drivetrain Options: Rear-Wheel Drive (RWD), All-Wheel Drive (AWD) Features Transmission Features: Driver Shift Control (manual shifting capability), performance shift modes Fluid Specifications Transmission Fluid Type: Dexron VI (or equivalent) 📐 Dimensions Exterior Length: Approx. 199.8 inches (5075 mm) Width: Approx. 72.6 inches (1844 mm) Height: Approx. 57.7 inches (1466 mm) Wheelbase: Approx. 117.5 inches (2984 mm) Weights Curb Weight Rwd: Approx. 3,770 - 3,850 lbs (1710 - 1746 kg) Curb Weight AWD: Approx. 3,950 - 4,050 lbs (1792 - 1837 kg) Cargo Trunk Volume: Approx. 15.1 cubic feet (427 liters) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-Star NHTSA Front Impact Passenger: 5-Star NHTSA Side Impact Front Driver: 5-Star NHTSA Side Impact Front Passenger: 5-Star NHTSA Side Impact Rear Driver: 5-Star NHTSA Side Impact Rear Passenger: 5-Star IIHS Front Offset Crash Rating: Good Active Features ABS: Standard 4-wheel Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Stability Control: Standard StabiliTrak (Electronic Stability Control) Passive Features Airbags: Frontal airbags (driver and passenger), front side-impact airbags, roof-mounted side-impact curtain airbags 💡 Technology Features Infotainment Infotainment System: Cadillac's acclaimed Bose premium audio system, optional DVD Navigation with touch screen interface. Driver Assistance Driver Assistance Features: Adaptive Cruise Control (optional), Parking Assist (optional rear sensors). Connectivity Connectivity Features: OnStar® communication system (subscription-based). 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 to 7,500 miles (or as indicated by the Oil Life Monitoring System), using synthetic oil. Engine Air Filter: Inspect every 15,000 miles, replace as needed (typically every 30,000-45,000 miles). Cabin Air Filter: Replace every 15,000-20,000 miles. Spark Plugs: Platinum tipped: Replace around 100,000 miles. Iridium tipped: Typically longer life, refer to manual for exact interval. Transmission Fluid: Inspect every 30,000 miles, change as per manual recommendations or severe service conditions (typically around 60,000-100,000 miles). Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic...