Target Audience:
        
        
            DIY enthusiasts, independent repair shops, Audi TT owners seeking in-depth knowledge
        
     
    
    
        
            Advantage Over Print:
        
        
            Instant access, searchability, always up-to-date (within licensed period), accessible on multiple devices
        
     
    
    
        
            Licensing:
        
        
            Officially licensed and derived from OE (Original Equipment) materials
        
     
    
        
            Convenience:
        
        
            Accessible from any PC, laptop, smartphone, or tablet with an internet connection
        
     
    
    
        
            Cost Savings:
        
        
            Enables owners to perform repairs and maintenance themselves, saving on labor costs
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            Service and Repair
        
     
    
        
            Scope:
        
        
            Comprehensive factory-derived information
        
     
    
    
        
            Estimated Page Count:
        
        
            Thousands (as it's software-based with extensive content)
        
     
    
    
        
            Type:
        
        
            Online Service & Repair Manual Software
        
     
    
    
    
    
        
            Format:
        
        
            Web-based (accessible via browser)
        
     
    
    
        
            Access:
        
        
            1 Year included, with discount for extension
        
     
 
    
    
    
        
            Engine:
        
        
            Detailed diagnosis, repair, and overhaul of 1.8T (APX, BAM) engines
        
     
    
        
            Drivetrain:
        
        
            Front-wheel drive (FWD) and Quattro all-wheel drive (AWD) systems, including Haldex clutch operation
        
     
    
        
            Transmission:
        
        
            Manual (02J, 02S) and Automatic (01M, 09G) transmissions, including clutch and torque converter service
        
     
    
        
            Suspension Steering:
        
        
            Front and rear suspension components, steering rack, power steering system, wheel alignment
        
     
    
        
            Brakes:
        
        
            Hydraulic system, ABS, ESP, brake pad/rotor replacement, caliper service, bleeding procedures
        
     
    
        
            Electrical Electronics:
        
        
            Complete wiring diagrams, ECU troubleshooting, sensor diagnostics, lighting, instrumentation, comfort systems
        
     
    
        
            HVAC:
        
        
            Air conditioning system service, heater core, blower motor, climate control module
        
     
    
        
            Body Chassis:
        
        
            Body panel repair, doors, windows, convertible top mechanisms (if applicable to specific TT variants), interior trim
        
     
    
    
        
            Maintenance:
        
        
            Oil changes, filter replacements, spark plugs, timing belt/chain service, coolant flush, brake fluid flush
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic procedures for common and complex issues, fault code interpretation
        
     
    
        
            Repair Replacement:
        
        
            Step-by-step instructions for component replacement and repair
        
     
    
        
            Diagnostics:
        
        
            Engine management diagnostics, ABS/ESP system diagnostics, airbag system diagnostics
        
     
    
    
        
            Depth:
        
        
            Factory-level diagnostic and repair procedures
        
     
    
        
            Detail Level:
        
        
            Includes torque specifications, clearances, and specialized tool requirements
        
     
 
    
    
    
        
            Engine Code:
        
        
            1.8T (APX, BAM)
        
     
    
    
        
            Engine Configuration:
        
        
            Inline 4-cylinder, turbocharged, 20-valve (5 valves per cylinder)
        
     
    
    
    
    
        
            Horsepower:
        
        
            180 PS (178 bhp) for most 2001 models (some early models may have 225 PS variants)
        
     
    
        
            Torque:
        
        
            235 Nm (173 lb-ft) for 180 PS variant
        
     
    
    
        
            Fuel Delivery:
        
        
            Multi-point fuel injection (MPI), Electronic Fuel Injection (EFI)
        
     
    
    
        
            ECM:
        
        
            Bosch Motronic ME 7.x (specific variant depending on regional ECU)
        
     
    
    
        
            Timing Belt Chain:
        
        
            Timing belt driven camshafts; timing belt replacement interval is critical
        
     
 
    
    
    
        
            Type:
        
        
            5-speed Manual (e.g., 02J)
        
     
    
    
        
            Type:
        
        
            6-speed Manual (on 225 PS models), 5-speed Tiptronic Automatic (01M / 09G)
        
     
    
    
        
            Quattro:
        
        
            Optional Quattro AWD system utilizing a Haldex clutch
        
     
    
    
        
            Manual Transmission Fluid:
        
        
            G 052 171 A1 (or equivalent API GL-4 75W-90)
        
     
    
        
            Automatic Transmission Fluid:
        
        
            G 055 025 A2 (or equivalent ATF for 09G)
        
     
 
    
    
    
        
            Length:
        
        
            Approx. 4041 mm (159.1 in)
        
     
    
        
            Width:
        
        
            Approx. 1774 mm (69.8 in)
        
     
    
        
            Height:
        
        
            Approx. 1345 mm (53.0 in)
        
     
    
        
            Wheelbase:
        
        
            Approx. 2429 mm (95.6 in)
        
     
    
    
        
            Curb Weight:
        
        
            Approx. 1300-1450 kg (2866-3197 lbs), varies by drivetrain and options
        
     
 
    
    
    
        
            NHTSA Front Crash Test:
        
        
            Likely 4-star rating for driver and passenger (typical for era, manual may contain specific data)
        
     
    
        
            IIHS Crash Test:
        
        
            Good rating in frontal offset tests (typical for its segment)
        
     
    
    
        
            ABS:
        
        
            Standard Anti-lock Braking System
        
     
    
        
            Esp:
        
        
            Optional Electronic Stability Program (ESP)
        
     
    
    
        
            Airbags:
        
        
            Front airbags, side airbags
        
     
    
        
            Seatbelts:
        
        
            Three-point inertia-reel seatbelts with pretensioners
        
     
 
    
    
    
        
            Head Unit:
        
        
            Audi Chorus or Concert CD players, optional navigation system (Chorus II / Concert II)
        
     
    
    
        
            Esp:
        
        
            Electronic Stability Program was available as an option
        
     
    
    
        
            Oem Connectivity:
        
        
            Limited by 2001 standards, typically CD changer compatibility, possibly early phone prep
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            10,000 miles or 1 year, whichever comes first (or flexible based on driving conditions, consult manual)
        
     
    
        
            Timing Belt Replacement:
        
        
            Crucial interval, typically 60,000-80,000 miles or 5-7 years (consult manual for exact recommendation based on engine code)
        
     
    
    
        
            Engine Oil:
        
        
            SAE 5W-40, meeting VW 502 00 or VW 503 01 specifications
        
     
    
        
            Coolant:
        
        
            G 12 (Purple), Ethylene Glycol based coolant
        
     
    
    
    
        
            Coil Packs:
        
        
            Ignition coil pack failure, leading to misfires and rough running
        
     
    
        
            Piston Washers Disintegration:
        
        
            Disintegration of the plastic piston washer in brake calipers, leading to sticking brakes
        
     
    
        
            Oil Flame Trap:
        
        
            Clogging of the oil separator/flame trap system can lead to vacuum leaks and rough idle
        
     
    
        
            ABS Sensor Failure:
        
        
            Failure of ABS wheel speed sensors, triggering ABS/ESP warning lights
        
     
 
    
    
    
        
            Audi Heritage:
        
        
            Part of the Volkswagen Group, known for performance, technology, and premium quality
        
     
    
    
        
            Tt Design Concept:
        
        
            Introduced as a concept car, known for its distinctive Bauhaus-inspired, rounded styling
        
     
    
    
        
            First Generation:
        
        
            Mk1 (Typ 8N) production began in 1998
        
     
    
        
            Manufacturing Location:
        
        
            Győr, Hungary (Audi Hungaria Motor Kft.)