🏷️ Basic Information Identification Make: Volkswagen Model: Jetta Year: 2004 Codes Chassis Code: A4 (PQ34) 👋 Introduction Market Position Segment: Compact/Mid-size Sedan and Wagon Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Ford Focus, Mazda3 Key Features Platform: PQ34 platform, shared with Golf Mk4 and Bora/Jetta Mk4 Design Philosophy: European-influenced design, solid build quality, refined driving dynamics Powertrain Options: Diverse range of reliable and fuel-efficient engines, including a popular TDI diesel. 📋 Manual Details Coverage Areas Coverage Summary: Comprehensive service and repair for the 2004 Volkswagen Jetta, covering all major mechanical, electrical, and body systems. Page Count Estimated Pages: 1500+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: Software (likely digital, possibly PDF-based or proprietary application) 📖 Manual Coverage Systems Covered Engine: 2.0L ABA (SOHC I4), 1.8L AGU/AUM (DOHC Turbo I4), 2.8L AAA/AFP (VR6 DOHC V6), 1.9L ALH/AHF/ASV (TDI Turbo Diesel I4) Transmission: 5-speed Manual (02A, 02J), 4-speed Automatic (01M), 5-speed Automatic (09A) Brakes: Front disc, Rear disc (vented front on some models), ABS, EBD, Traction Control (ASR) Electrical: Wiring diagrams, lighting, ignition, charging system, starter, diagnostics (OBD-II) Suspension: Front MacPherson struts, Rear independent trailing arm with torsion beam Steering: Hydraulic power steering HVAC: Air conditioning, heating, ventilation, climate control systems Body And Trim: Exterior body panels, interior trim, doors, windows, sunroof Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plugs, timing belt (for 1.8T/VR6) Diagnostics: Troubleshooting guides, fault code interpretation, common issues and solutions Repair: Engine component replacement, transmission service, brake system repairs, suspension and steering work, electrical system repair Overhaul: Engine rebuilding, transmission overhauling (detailed procedures) Calibration: Throttle body alignment, sensor calibration (where applicable) Body Repair: Panel alignment, dent removal, glass replacement Technical Depth Depth: Detailed diagnostic procedures, component testing, torque specifications, exploded views, schematics. 📊 Manual Specifications File Format File Type: Software Application/Digital Document (PDF) Print Quality Print Ability: Printable pages, high-resolution diagrams and images Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code 2.0L Sohc: ABA Displacement 2.0L Sohc: 1984 cc Bore X Stroke 2.0L Sohc: 82.5 mm x 92.8 mm Compression Ratio 2.0L Sohc: 10.5:1 Horsepower 2.0L Sohc: 115 hp @ 5200 rpm Torque 2.0L Sohc: 122 lb-ft @ 2600 rpm 1.8L Turbo Engine Code 1.8T: AGU/AUM Displacement 1.8T: 1781 cc Horsepower 1.8T: 150 hp @ 5700 rpm Torque 1.8T: 155 lb-ft @ 1750 rpm 1.9L Tdi Engine Code 1.9Tdi: ALH Displacement 1.9Tdi: 1896 cc Horsepower 1.9Tdi: 90 hp @ 4000 rpm Torque 1.9Tdi: 149 lb-ft @ 1900 rpm 2.8L Vr6 Engine Code 2.8L Vr6: AAA/AFP Displacement 2.8L Vr6: 2791 cc Horsepower 2.8L Vr6: 178 hp @ 6200 rpm Torque 2.8L Vr6: 195 lb-ft @ 3200 rpm Fuel System Fuel Delivery Gasoline: Electronic Fuel Injection (MPI) Fuel Delivery Tdi: Direct Injection (TDI - Turbocharged Direct Injection) Recommended Fuel Gasoline: 87-91 Octane Unleaded Gasoline Recommended Fuel Tdi: ULSD Diesel Fuel 🔧 Transmission Standard Standard Transmission: 5-speed Manual (02A/02J) Optional Optional Transmission: 4-speed Automatic (01M), 5-speed Automatic (09A - often with VR6) Features Automatic Features: Tiptronic (sequential shifting) option available on some automatic transmissions. Fluid Specs Manual Transmission Fluid: G 009 279 (VW specification) or equivalent synthetic gear oil (e.g., Pentosin MTF-LT1) Automatic Transmission Fluid: G 052 162 (VW specification) or equivalent ATF (e.g., Pentosin ATF1) 📐 Dimensions Exterior Length: Approx. 170.0 inches Width: Approx. 68.7 inches Height: Approx. 56.4 inches Wheelbase: Approx. 101.5 inches Cargo Cargo Volume Sedan: Approx. 15.5 cu ft Cargo Volume Wagon: Approx. 29.9 cu ft (rear seats up) Weights Curb Weight: Approx. 3000 - 3400 lbs (depending on engine and configuration) 🛡️ Safety Features Ratings NHTSA Front Impact: Good (driver and passenger) NHTSA Side Impact: Good (front and rear passengers) IIHS Front Offset: Good Active Features ABS: Standard Anti-lock Braking System Traction Control: ASR (Traction Control System) available on some models Passive Features Airbags: Front dual-stage airbags, available side-impact airbags Seatbelts: 3-point front seatbelts with pretensioners, 3-point rear seatbelts 💡 Technology Features Infotainment Head Unit: Various factory radio/cassette/CD players available. Some models with premium sound systems. Navigation: Optional GPS navigation system available on higher trim levels. Driver Assistance Cruise Control: Standard or optional cruise control system. Connectivity Auxiliary Input: Rarely factory-equipped; often requires aftermarket adapter installation. 🔧 Maintenance Service Intervals Oil Change Interval: 5,000 - 7,500 miles or 6-12 months (depending on oil type and driving conditions) Timing Belt Replacement: 70,000 - 90,000 miles or 7 years (for 1.8T and VR6 engines). Crucial to follow to prevent catastrophic engine damage. Spark Plug Replacement: Approx. 30,000 - 60,000 miles (depending on plug type) Fluid Specifications Engine Oil Specification: VW 502 00 approved synthetic oil (e.g., 5W-40 or 5W-30) Coolant Specification: G 12 (or G 12 Plus) Antifreeze/Coolant (pink) Brake Fluid Specification: DOT 4 Known Issues Ignition Coils: Coil-on-plug (COP) ignition systems can be prone to individual coil failure,...