Positioning:
Premium compact sports car, known for its distinctive styling and performance.
Key Competitors:
Porsche Boxster, BMW Z3/Z4, Mercedes-Benz SLK, Nissan 300ZX.
Design Philosophy:
Inspired by the Auto Union Type C 'Silver Arrows' of the 1930s, emphasizing a compact, rounded, and distinctive aesthetic.
Body Styles:
Coupe and Roadster convertible.
Drivetrain Options:
Front-wheel drive (FWD) and Audi's renowned Quattro all-wheel drive.
Engine:
2.7L V6 Bi-Turbo (APX, AWE, AWW), 1.8L Turbocharged Inline-4 (AGU, AUM, AUQ, APY, AMK, BAM)
Powertrain:
Manual Transmissions (01M, 02J, 02M), Automatic Transmissions (Tiptronic 01M)
Drivetrain:
Quattro All-Wheel Drive System ( Haldex Clutch System)
Suspension:
Front McPherson Struts, Rear Multi-link Independent Suspension
Brakes:
Front Ventilated Discs, Rear Solid Discs, ABS, EBD, ESP (Electronic Stability Program)
Electrical:
Full Electrical Schematics, ECU Pinouts, Wiring Diagrams, Component Locations
Bodywork:
Chassis, Body Panels, Doors, Hood, Trunk, Convertible Top Mechanism
Climate Control:
HVAC System, A/C Service, Heater Core, Climate Control Module
Interior:
Seats, Dashboard, Trim Panels, SRS Airbag System
Engine Repair:
Engine assembly/disassembly, timing belt/chain, piston/ring replacement, cylinder head service, component diagnostics
Transmission Service:
Clutch replacement, gearbox overhaul, torque converter service, transmission fluid changes, TCU diagnostics
Brake Service:
Brake pad/rotor replacement, caliper overhaul, bleeding procedures, ABS/ESP diagnostics
Suspension Service:
Strut/shock replacement, bushing replacement, wheel bearing service, alignment specifications
Electrical Diagnostics:
Troubleshooting using wiring diagrams, sensor testing, module programming, common fault diagnosis
Body Repair:
Panel alignment, door hinge adjustment, convertible top repair, rust prevention
Maintenance Tasks:
Oil and filter changes, spark plug replacement, coolant flushes, air filter replacement, fuel filter replacement
Troubleshooting:
Component testing, fault code interpretation, symptom-based diagnosis
Depth Level:
Expert Level: Covers everything from routine maintenance to complete engine and transmission rebuilds.
Diagnostic Capability:
Detailed diagnostic procedures for all electronic control units (ECUs) and sensors.
Torque Specifications:
Comprehensive list of all torque specifications for critical fasteners.
Special Tools:
Identification and usage of specialized Audi/VW tools required for specific repairs.
Inline 4 Turbocharged:
1.8L (1781cc) DOHC 20-valve, Power: 150-225 HP (depending on variant), Torque: 155-221 lb-ft.
V6 Biturbo:
2.7L (2671cc) DOHC 30-valve, Power: 225-250 HP (depending on variant), Torque: 258-266 lb-ft.
Engine Codes:
1.8T: AGU, AUM, AUQ, APY, AMK, BAM; 2.7T: APX, AWE, AWW.
Compression Ratio:
Typically 9.5:1 or 10.3:1 (depending on engine).
Fuel Delivery:
Electronic Fuel Injection (EFI), Turbocharged (Intercooled on most variants).
Fuel Type:
Premium Unleaded Gasoline (91+ Octane Recommended).
Length:
Coupe: ~158.5 in (4025 mm), Roadster: ~160.4 in (4075 mm)
Width:
~67.7 in (1720 mm)
Height:
Coupe: ~52.7 in (1340 mm), Roadster: ~52.5 in (1335 mm)
Wheelbase:
~98.6 in (2505 mm)
Seating Capacity:
2+2 Seating (rear seats are very small).
Cargo Volume Coupe:
Approx. 6.9 cu ft (195 liters).
Cargo Volume Roadster:
Approx. 3.5 cu ft (99 liters) with top up.
Curb Weight:
Approx. 2800-3100 lbs (1270-1400 kg) depending on configuration.
NHTSA Front Impact:
4/5 Stars (Driver/Passenger) for early models.
Traction Control:
Traction Control System (TCS) standard on all models.
Stability Control:
Electronic Stability Program (ESP) introduced on later models, especially 225HP variants.
ABS:
Anti-lock Braking System (ABS) standard.
Airbags:
Driver and passenger front airbags, side airbags.
Rollover Protection:
Active rollover protection hoops integrated into the windshield frame for Roadster model.
Oil Change Interval:
Typically every 7,500-10,000 miles or 12 months, whichever comes first (flexible interval system).
Timing Belt:
For 1.8T models without a timing chain, replace every 60,000-80,000 miles or 5-7 years.
Spark Plugs:
Replace every 30,000-60,000 miles depending on type (copper vs. iridium).
Engine Oil:
SAE 5W-40 or 0W-30 Synthetic (VW 502.00 / 503.00 / 504.00 specification recommended).
Coolant:
G12 Plus or G12++ (Pink) Antifreeze/Coolant (50/50 mix with distilled water).
Transmission Fluid Manual:
API GL-4 or GL-5, SAE 75W-90 Synthetic Gear Oil.
Transmission Fluid Automatic:
G 052 162 A1/A2 (VW LT 71141) or equivalent.
Brake Fluid:
DOT 4 Synthetic Brake Fluid.
Coil Packs:
Ignition coil pack failures common on 1.8T engines.
Oil Leaks:
Valve cover gasket and oil cooler seal leaks.
Haldex Coupling:
Service and fluid changes for Quattro system are crucial; potential issues with pump or filter.
Rear Suspension Bushings:
Wear and tear on rear trailing arm bushings can lead to alignment issues.
O2 Sensors:
Oxygen sensor failures can affect fuel economy and emissions.
Audi Legacy:
Audi's history in motorsport, particularly with Auto Union's pre-war Grand Prix cars, influenced the TT's design.
Concept To Production:
First shown as a concept car in 1995 (coupe) and 1997 (roadster), praised for its radical design, leading to production.
Facelift Updates:
Minor updates and power increases throughout its production run, including introduction of the 225HP variants and ESP.
Manufacturing Location:
Gyor, Hungary (Audi Hungaria Motor Kft.)
Production Years:
1998-2006
