🏷️ Basic Information Identification Make: Volkswagen Model: Golf Year: 2004 Codes Chassis Code: Mk4 (Type 1J) 👋 Introduction Market Position Market Position: The 2004 Volkswagen Golf (Mk4) was a popular compact car known for its solid build quality, refined interior, and engaging driving dynamics, often positioned as a premium offering in its segment against competitors like the Honda Civic, Toyota Corolla, and Ford Focus. Competitive Analysis Competitive Analysis: This manual caters to owners who value the Golf's European-engineered feel. Its comprehensive nature provides DIY mechanics with the in-depth knowledge needed to maintain and repair this sophisticated vehicle, rivalling the specialized factory service information available for other premium European makes. Key Features Key Features: Officially licensed, digital format for instant access, detailed technical specifications, step-by-step repair procedures, diagnostic information, and wiring diagrams. 📋 Manual Details Coverage Areas Coverage Areas: North America, Europe, Global Page Count Page Count: Extensive (digital format implies comprehensive coverage, often exceeding 2000 pages in printed equivalent) Manual Type Manual Type: Service and Repair Manual Software Language Language: English Format Format: Software (Digital Download/Online Access - likely PDF or proprietary platform) 📖 Manual Coverage Systems Covered Systems Covered: Engine mechanical, Engine electrical, Fuel system, Ignition system, Exhaust system, Cooling system, Lubrication system, Transmission (manual and automatic), Clutch, Drivetrain (FWD, AWD/4Motion), Brakes (ABS, EBD), Suspension (front and rear), Steering, Body and frame, Electrical systems (lighting, wipers, power accessories, HVAC), Body control modules (BCM), SRS (Airbag) system, Diagnostics and troubleshooting, Emission controls, OBD-II procedures Procedures Included Procedures Included: Routine maintenance, Scheduled maintenance, Troubleshooting common problems, Component removal and installation, Engine overhaul, Transmission repair, Brake system servicing, Suspension component replacement, Steering system repair, Electrical diagnostics and repair, HVAC system servicing, Body panel repair, Interior component removal/installation, Wiring diagrams, Diagnostic Trouble Codes (DTC) interpretation and resolution Technical Depth Technical Depth: Comprehensive; covers everything from basic fluid changes and filter replacements to full engine rebuilds, transmission overhauls, complex electrical diagnostics, and bodywork. 📊 Manual Specifications File Format File Format: Digital (Likely PDF or application-based; searchable text, printable pages) Print Quality Print Quality: N/A (Digital format, quality dependent on source and display) Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Primary Engine Options 2004: 1.8L Turbocharged Inline-4 (AGU, AUM, AUQ, AWV, AWW, BVP, BBY engines), 2.0L Naturally Aspirated Inline-4 (AEH, APK, AQY, AZG, AVH, AZH engines), 2.8L VR6 (8-cylinder in a narrow V-angle) (AGH, AHF, ALH engines - diesel and petrol variants also common globally) Performance Typical Horsepower Range: 115 hp to 180 hp (depending on engine variant and market) Fuel System Fuel System Type: Electronic Fuel Injection (EFI) / Multi-Point Fuel Injection (MPI) / Gasoline Direct Injection (GDI - less common for base models in NA) 🔧 Transmission Standard Standard Transmission: 5-speed Manual Transmission Optional Optional Transmission: 4-speed Automatic Transmission (e.g., 01M), 5-speed Automatic Transmission (e.g., 01N), 6-speed Manual Transmission (on performance variants like GTI) Features Transmission Features: Front-wheel drive standard; optional 4MOTION all-wheel drive. Automatic transmissions often featured Tiptronic manual shifting mode. 📐 Dimensions Exterior Length: Approx. 4034 mm (158.8 in) Width: Approx. 1714 mm (67.5 in) Height: Approx. 1476 mm (58.1 in) Wheelbase: Approx. 2511 mm (98.9 in) Cargo Cargo Volume Hatchback: Approx. 12.8 cu ft (362 L) with rear seats up Weights Curb Weight: Approx. 1300 - 1450 kg (2866 - 3197 lbs) depending on engine and trim 🛡️ Safety Features Ratings NHTSA Front Impact Rating: 4 stars (driver), 4 stars (passenger) for 2004 models (varies slightly by year/testing) IIHS Side Impact Rating: Good (for models equipped with side airbags) Active Features Active Safety Features: Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Traction Control System (TCS - optional), Electronic Stability Program (ESP/ESC - optional on some trims, standard on GTI) Passive Features Passive Safety Features: Front airbags, Side airbags (optional), Curtain airbags (optional on some trims), Pretensioner seatbelts, Crumple zones 💡 Technology Features Infotainment Infotainment Systems: Factory radio/cassette or CD player, optional premium sound systems (e.g., Monsoon), navigation systems (less common), basic trip computer. Driver Assistance Driver Assistance Features: Cruise control, optional parking sensors (rear), Anti-lock Braking System (ABS), Traction Control (ASR), Electronic Stability Program (ESP - optional). Connectivity Connectivity Features: Power windows, power locks, remote keyless entry, optional heated seats, heated mirrors. Aftermarket Bluetooth/auxiliary inputs common. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 miles (16,000 km) or 12 months, whichever comes first, using synthetic oil. Consult manual for specific engine/oil type. Timing Belt Replacement: For 1.8T and 2.0L engines, typically at 60,000-100,000 miles (96,000-160,000 km). Crucial to prevent catastrophic engine damage. Consult manual for exact interval and kit part numbers. Fluid Specifications Engine Oil Spec: API Service SG, SH, SJ, SL, or higher; ACEA A3, A3/B3, A3/B4. Viscosity: 5W-40, 5W-30, 0W-40 (refer to owner's manual for specific engine and climate recommendations). Synthetic oil recommended....