🏷️ Basic Information Identification Make: Volkswagen Model: Golf Generation: Mk4 (A4) Codes Platform Code: PQ34 Engine Code Prefix: AHF, ALH, ASV, AJM, AUY, ATD, AXR, BEW 👋 Introduction Market Position Positioning: The Volkswagen Golf TDI (Mk4) was a popular compact car known for its fuel efficiency and diesel engine performance, competing with other European and Japanese hatchbacks. Key Features Distinctive Qualities: Direct injection turbo diesel engine (TDI) offering excellent torque and fuel economy, solid build quality, refined interior for its class. 📋 Manual Details Coverage Applicable Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005 Page Count Total Pages: 6937 Manual Type Type: Workshop Service Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, cylinder head, block, pistons, crankshaft, camshafts, timing, valve train Engine Management Tda: Fuel injection systems (TDI specifics), ignition timing, glow plug system, EGR system Transmission Manual: Gearbox removal/installation, clutch, gear selection, internal components Transmission Automatic: Removal/installation, torque converter, internal components, electronic control (if applicable to TDI models covered) Fuel System: Fuel tank, fuel pump, fuel lines, filters, common rail injection system components (injectors, high-pressure pump) Lubrication System: Oil pump, oil filter, oil cooler, oil passages, lubrication requirements Cooling System: Radiator, water pump, thermostat, coolant passages, fan systems Exhaust System: Exhaust manifold, catalytic converter, muffler, pipes, emissions control systems Electrical System: Battery, alternator, starter motor, wiring diagrams, lighting, fuses, relays Body And Chassis: Body panels, doors, windows, interior trim, chassis components, suspension, steering Brakes: Brake discs, pads, calipers, master cylinder, brake lines, ABS system Climate Control: Air conditioning system, heater core, blower motor, controls Safety Systems: Airbags, seat belts, ABS, traction control (ESP) Steering System: Power steering system, steering rack, tie rod ends, steering column Suspension System: Front McPherson struts, rear torsion beam or multi-link suspension (depending on model), control arms, bushings, shock absorbers Tire Wheel Specifications: Information on tire sizes, pressures, and wheel bolt patterns (e.g., 5x100mm bolt pattern) Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, spark plug/glow plug replacement Troubleshooting: Diagnostic procedures, fault codes, symptom-based troubleshooting Repair Overhaul: Detailed step-by-step instructions for component removal, repair, and reinstallation Tune Ups: Engine tuning, ignition timing adjustments, fuel system diagnostics Component Replacement: Specific instructions for replacing major and minor components Calibration Adjustments: Procedures for adjusting various vehicle systems to factory specifications Wiring Diagrams: Yes, comprehensive electrical system diagrams are a staple of workshop manuals. Technical Depth Depth: Comprehensive: From routine maintenance to complete engine and transmission rebuilds, including diagnostics and specialized procedures. Diagnostics Included: Yes, includes diagnostic procedures and information necessary for identifying and resolving faults. Proprietary Components: Includes instructions for proprietary components and references manufacturer instructions where applicable for better understanding of system function. Manual Usefulness Target Audience: Professional automotive technicians and knowledgeable DIY mechanics aiming for quality service and in-depth understanding of the vehicle. Special Tools Tool References: References and often illustrates specific Volkswagen special tools required for certain adjustments or repairs. Safety Emphasis Safety Warnings: Emphasizes safety procedures and precautions with clear notations (WARNING, CAUTION, NOTE). 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Printable (Yes) Delivery Delivery Method: Electronic Delivery via Email (Fast and Free) Source Original Publisher Focus: Primarily for mechanical technicians familiar with BRP products and general automotive practices. Emphasizes product-specific aspects. ⚙️ Engine Specifications Primary Engine Engine Type: Turbocharged Direct Injection (TDI) Diesel Performance Common Power Output: Approx. 90-115 hp (depending on specific engine code and market) Common Torque Output: Approx. 144-155 lb-ft (depending on specific engine code and market) Fuel System Injection Type: High-pressure common rail injection (later models) or Pumpe-Düse (PD) injection (specific models within this range) Engine Code Examples Engine Codes: ALH (1.9 TDI - 90hp), AHU (1.9 TDI - 90hp), AHF (1.9 TDI - 110hp), ASV (1.9 TDI - 110hp), AJM (1.9 TDI PD - 115hp), AUY (1.9 TDI PD - 100hp), ATD (1.9 TDI PD - 100hp), AXR (1.9 TDI PD - 100hp), BEW (1.9 TDI PD - 100hp) 🔧 Transmission Standard Standard Transmission: 5-speed Manual Optional Optional Transmission: 4-speed Automatic (Tiptronic) Features Clutch Type: Hydraulically operated single dry plate clutch 📐 Dimensions Exterior Body Styles: 3-door Hatchback, 5-door Hatchback, Wagon (Variant) Weights Curb Weight Range: Approx. 1250-1350 kg (depending on body style and equipment) 🛡️ Safety Features Ratings Euro Ncap Rating: 4 stars (for original Golf Mk4 models, specific to crash test year) Active Features Active Safety: Anti-lock Braking System (ABS), Electronic Stability Program (ESP) available on some models Passive Features Passive Safety: Front airbags, side airbags, pre-tensioner seatbelts, reinforced safety cell 💡 Technology Features Infotainment Infotainment Systems: Factory-installed AM/FM radio with CD player. Options for upgraded sound systems and potentially navigation on higher trims or later models. Driver Assistance Driver Assistance Features: Cruise control (optional), trip computer. ESP (Electronic Stability Program) available on some models. Connectivity Connectivity Options: Basic, often with an...