2008 Audi TT
The 2008 Audi TT is a sporty coupe and convertible that offers a blend of style and performance. The base engine is a 2.0L turbocharged inline-4 producing 200 horsepower and 207 lb-ft of torque, paired with either a 6-speed manual or a 6-speed S-tronic dual-clutch transmission (DSG). An optional 3.2L VR6 engine is available, producing 250 horsepower and 236 lb-ft of torque. This engine is paired with the 6-speed S-tronic dual-clutch transmission (DSG) and quattro all-wheel drive. Owners generally appreciate the TT’s distinctive design, nimble handling, and upscale interior. Some criticisms include the limited rear passenger space (in the coupe), firm ride, and potential for expensive repairs.
Engine
2.0L Turbocharged Inline-4 (EA113)
- Diverter Valve Failure
- Description/Symptoms: Loss of boost pressure, resulting in reduced power and acceleration. Can also cause a check engine light to illuminate. A hissing or fluttering sound may be heard during acceleration.
- Solution: Replace the diverter valve. Many owners upgrade to a stronger aftermarket valve to prevent future failures.
- Estimated Cost to Fix: $100 - $300+
- Recalls: None Found
- Cam Follower Wear (High-Pressure Fuel Pump)
- Description/Symptoms: The cam follower, located between the camshaft and the high-pressure fuel pump, can wear down over time. This can lead to reduced fuel pressure, rough running, misfires, and potential damage to the camshaft.
- Solution: Replace the cam follower. It’s recommended to inspect and replace it preventatively at regular intervals.
- Estimated Cost to Fix: $100 - $300
- Recalls: None Found
- Oil Consumption
- Description/Symptoms: Excessive oil consumption, requiring frequent topping off. This is a common issue on many EA113 engines.
- Solution: There is no permanent solution. Some owners try using thicker oil or cleaning the PCV system. In severe cases, piston ring replacement may be necessary, but this is a very expensive repair.
- Estimated Cost to Fix: $0 - $3000+
- Recalls: None Found
3.2L VR6
- Timing Chain Issues
- Description/Symptoms: The timing chain tensioners can wear out over time, leading to timing chain rattle, especially on startup. If left unattended, this can cause the timing chain to jump, resulting in severe engine damage.
- Solution: Replace the timing chain, tensioners, and guides. This is a complex job that requires specialized tools and expertise.
- Estimated Cost to Fix: $1500 - $3000+
- Recalls: None Found
Transmission
6-Speed S-Tronic Dual-Clutch Transmission (DSG) - 02E
- Mechatronic Unit Failure
- Description/Symptoms: The Mechatronic unit is the electronic control unit for the DSG transmission. Failure can cause erratic shifting, harsh engagement, complete loss of drive, and error messages on the instrument cluster.
- Solution: Replace or rebuild the Mechatronic unit. Some shops offer repair services for specific Mechatronic unit issues.
- Estimated Cost to Fix: $1500 - $4000+
- Recalls: None Found
- Clutch Pack Wear
- Description/Symptoms: The DSG transmission uses multiple clutch packs to engage different gears. Over time, these clutch packs can wear out, leading to slipping, shuddering during acceleration, and difficulty shifting.
- Solution: Replace the worn clutch packs.
- Estimated Cost to Fix: $1000 - $3000+
- Recalls: None Found
Suspension
- Magnetic Ride Control Issues (If Equipped)
- Description/Symptoms: If the vehicle is equipped with the optional magnetic ride control, the shocks can leak or fail, resulting in a bouncy or uncomfortable ride. Error messages may appear on the instrument cluster.
- Solution: Replace the failed shocks. Aftermarket options are available, including converting to traditional shocks.
- Estimated Cost to Fix: $500 - $2000+ per shock
- Recalls: None Found
- Control Arm Bushing Failure
- Description/Symptoms: Worn control arm bushings can cause clunking noises, especially over bumps. They can also affect handling and tire wear.
- Solution: Replace the worn control arm bushings or the entire control arm assembly.
- Estimated Cost to Fix: $200 - $800+ per control arm
- Recalls: None Found
Electrical
- Instrument Cluster Pixelation
- Description/Symptoms: Pixels in the instrument cluster display can fade or disappear, making it difficult to read information.
- Solution: Repair or replace the instrument cluster. Some repair services specialize in fixing pixelation issues.
- Estimated Cost to Fix: $200 - $1000+
- Recalls: None Found
- Window Regulator Failure
- Description/Symptoms: The power windows may stop working or move erratically due to a failed window regulator.
- Solution: Replace the window regulator.
- Estimated Cost to Fix: $200 - $500
- Recalls: None Found
Exterior
- Convertible Top Issues (Convertible Models)
- Description/Symptoms: The convertible top mechanism can experience failures, leading to difficulty opening or closing the top. This can be due to hydraulic pump failure, sensor problems, or damage to the frame.
- Solution: Diagnose the specific issue and repair or replace the affected components.
- Estimated Cost to Fix: $300 - $2000+
- Recalls: None Found
Interior
- Center Console Buttons Wear
- Description/Symptoms: The soft-touch coating on the center console buttons (radio, climate control) can become sticky and wear off over time.
- Solution: Replace the affected buttons or the entire center console trim. Some owners use cleaning products to remove the sticky residue.
- Estimated Cost to Fix: $50 - $500+
- Recalls: None Found
Summary
The 2008 Audi TT, while stylish and fun to drive, can suffer from a range of issues. Engine problems, particularly with the 2.0T’s diverter valve and cam follower, and the VR6’s timing chain, can be costly. The DSG transmission is also known for its potential Mechatronic unit and clutch pack failures. Suspension, electrical, and convertible top issues (if applicable) can add to the ownership costs. The severity and cost of these issues range from relatively minor fixes to major repairs that can exceed several thousand dollars. Prospective buyers should be aware of these potential problems and factor them into their purchasing decision.