🏷️ Basic Information Identification Make: Volkswagen Model: Jetta Year: 2002 Codes Chassis Code: A4 (MK4) 👋 Introduction Market Position Segment: Compact/Mid-size Sedan Target Audience: DIY enthusiasts, independent repair shops, Volkswagen owners Competitive Analysis Competitors: Honda Civic, Toyota Corolla, Ford Focus, Mazda3 Key Features Design Philosophy: German engineering, practical design, solid build quality Powertrain Options: Reliable and fuel-efficient inline-4 engines, optional potent VR6 Chassis Platform: A4 platform (MK4), shared with Golf and Beetle Manual Value: Essential for proper maintenance and repair, cost-saving for owners 📋 Manual Details Coverage Areas Primary Coverage: All mechanical and electrical systems Secondary Coverage: Bodywork, interior trim, maintenance schedules Page Count Total Pages: Approximately 1500+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine: 2.0L ABA (SOHC), 1.8L AGU/AUM (DOHC Turbo), 2.8L AAA (VR6) Transmission: 5-speed Manual (02J), 4-speed Automatic (01M) Brakes: Front Ventilated Discs, Rear Solid Discs (ABS optional) Suspension: Front MacPherson struts, Rear Torsion Beam Axle (independent on VR6) Electrical: Engine management, body control modules (BCM), lighting, comfort systems, diagnostics (OBD-II) Climate Control: Manual and automatic climate control systems Fuel System: Fuel injection, fuel pump, fuel filter, evaporative emissions control Exhaust System: Catalytic converter, mufflers, oxygen sensors Cooling System: Radiator, water pump, thermostat, coolant types Steering: Power-assisted rack and pinion, steering angle sensor Body: Body panels, doors, hood, trunk, glass, seals Interior: Seats, dashboard, door panels, headliner, airbags Procedures Included Maintenance: Oil changes, filter replacements, spark plugs, timing belts (where applicable) Repair: Engine component repair, transmission overhaul, brake system servicing Disassembly Assembly: Detailed step-by-step guides for component removal and reinstallation Troubleshooting: Diagnostic procedures for common problems, fault code interpretation Installation: Component replacement and alignment procedures Wiring Diagrams: Complete electrical system schematics Technical Depth Depth: Comprehensive, covering from basic maintenance to complex overhauls and diagnostics 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable Print Quality Resolution: High-resolution for clear diagrams and text Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine 1 Code: ABA Engine 1 Type: 2.0L SOHC Inline-4 Engine 1 Displacement Liters: 2.0 Engine 1 Horsepower Hp: 115 Engine 1 Torque Lb Ft: 122 Optional Engine 1 Engine 2 Code: AGU/AUM Engine 2 Type: 1.8L DOHC Turbocharged Inline-4 (16V) Engine 2 Displacement Liters: 1.8 Engine 2 Horsepower Hp: 150 Engine 2 Torque Lb Ft: 155 Optional Engine 2 Engine 3 Code: AAA Engine 3 Type: 2.8L SOHC VR6 (12V) Engine 3 Displacement Liters: 2.8 Engine 3 Horsepower Hp: 178 Engine 3 Torque Lb Ft: 184 Fuel System Fuel Delivery: Multi-point fuel injection (MPI) Recommended Fuel: 87 Octane (91 Octane recommended for Turbo/VR6 for optimal performance) Emissions Control: Catalytic converter, secondary air injection (on some models), evaporative emission control (EVAP) 🔧 Transmission Standard Type: 5-speed Manual (02J) Optional Type: 4-speed Automatic (01M) Features Clutch: Hydraulically actuated single dry plate clutch Automatic Features: Lock-up torque converter, sport/winter mode Fluid Specs Manual Fluid Type: VW G 052 171 A2 (or equivalent GL-4 75W-90) Automatic Fluid Type: ATF G 052 162 A1 (or equivalent JWS 3309 spec) 📐 Dimensions Exterior Length In: 174.7 Width In: 69.2 Height In: 57.5 Wheelbase In: 101.5 Weights Curb Weight Lbs Approx: 2900-3200 (depending on engine/options) Gross Vehicle Weight Rating Gvwr Lbs Approx: 4000-4200 Cargo Trunk Volume Cu Ft: 13.6 🛡️ Safety Features Ratings NHTSA Front Driver: 5-star NHTSA Front Passenger: 5-star IIHS Frontal Offset: Good Active Features ABS: Standard on most trims, optional on base models Traction Control: Optional (TCS) Passive Features Airbags Front: Driver and front passenger airbags Airbags Side: Optional front side-impact airbags Seatbelts: 3-point front and rear seatbelts with pretensioners and load limiters 💡 Technology Features Infotainment Radio Options: AM/FM stereo with CD player, optional Monsoon premium audio system Display: Digital clock and radio display Driver Assistance Cruise Control: Standard on most trims Headlights: Halogen reflector headlights, optional Xenon HID headlights Connectivity Power Windows: Standard Keyless Entry: Optional remote keyless entry 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000-7,500 miles (12 months) or as indicated by oil service light Engine Oil Type: SAE 5W-40 Synthetic (VW 502 00/505 00 spec recommended) Oil Filter Part Number Example: VW 068 115 561 B Air Filter Replacement: Every 30,000 miles or as needed Cabin Filter Replacement: Every 20,000-30,000 miles Spark Plug Replacement 2.0L: Every 60,000 miles (standard ignition) Spark Plug Replacement 1.8T: Every 60,000 miles (platinum or iridium) Timing Belt Replacement 2.0L: Every 70,000-90,000 miles (interference engine) Timing Belt Replacement 1.8T: Every 70,000-90,000 miles (interference engine) Timing Belt Replacement Vr6: Not applicable (timing chain driven) Fluid Specifications Coolant Type: G 12 (Pink) Antifreeze/Coolant (VW TL 774-C spec) Coolant Capacity Qts: 8.0 Brake Fluid Type: DOT 4 Known Issues Ignition Coils: Coil-on-plug (COP) systems prone to failure Mass Airflow Sensor: Can become dirty or fail, affecting engine performance Oil Leaks:...