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2008 Audi S3

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By Research the Car 4 min read

The 2008 Audi S3 is a sporty hatchback known for its performance and handling. It offers a blend of practicality and driving fun. The primary engine option for the 2008 S3 is a 2.0L turbocharged inline-4 cylinder engine, producing 265 horsepower and 258 lb-ft of torque. This engine was exclusively paired with a 6-speed manual transmission or an optional 6-speed S-tronic dual-clutch transmission. Owners often praise the S3 for its engaging driving experience, powerful engine, and stylish interior. Criticisms often center around maintenance costs and potential reliability issues common to performance vehicles.

Engine

2.0L TFSI

  • Diverter Valve Failure
    • Description/Symptoms: Loss of boost pressure, reduced engine performance, possible fault codes. A common failure point is the diaphragm within the valve tearing.
    • Solution: Replacement of the diverter valve with an updated version.
    • Estimated Cost to Fix: $100 - $300+
    • Recalls: None Found
  • Cam Follower Wear/Failure (High-Pressure Fuel Pump)
    • Description/Symptoms: Ticking noise from the engine, potential fuel delivery issues, check engine light. The cam follower, located between the camshaft and the high-pressure fuel pump, can wear prematurely. If the follower wears out completely, it can damage the camshaft.
    • Solution: Replacement of the cam follower. If the camshaft is damaged, it will also need replacement.
    • Estimated Cost to Fix: $50 - $150 for follower replacement, $500 - $1500+ for camshaft replacement if damaged.
    • Recalls: None Found
  • Coil Pack Failure
    • Description/Symptoms: Misfires, rough idling, check engine light.
    • Solution: Replacement of faulty coil pack(s).
    • Estimated Cost to Fix: $50 - $200+
    • Recalls: None Found
  • PCV (Positive Crankcase Ventilation) Valve Failure
    • Description/Symptoms: Poor idle, vacuum leaks, increased oil consumption, check engine light.
    • Solution: Replacement of the PCV valve.
    • Estimated Cost to Fix: $100 - $300+
    • Recalls: None Found

Transmission

6-Speed Manual

  • Clutch Failure
    • Description/Symptoms: Clutch slippage, difficulty shifting gears, high clutch pedal engagement.
    • Solution: Replacement of the clutch disc, pressure plate, and throw-out bearing. Flywheel resurfacing or replacement may also be required.
    • Estimated Cost to Fix: $800 - $2000+
    • Recalls: None Found
  • Gear Grinding/Difficulty Shifting
    • Description/Symptoms: Grinding noise when shifting gears, difficulty engaging certain gears.
    • Solution: Inspect and potentially replace synchros or other internal transmission components.
    • Estimated Cost to Fix: $1000 - $3000+
    • Recalls: None Found

6-Speed S-Tronic (DSG) Dual-Clutch Transmission

  • Mechatronic Unit Failure
    • Description/Symptoms: Erratic shifting, jerky movements, failure to engage gears, warning lights. The Mechatronic unit controls the shifting of the DSG transmission.
    • Solution: Replacement or repair of the Mechatronic unit.
    • Estimated Cost to Fix: $1500 - $4000+
    • Recalls: None Found
  • Clutch Pack Wear/Failure
    • Description/Symptoms: Slipping during acceleration, jerky shifting, reduced performance.
    • Solution: Replacement of the clutch packs.
    • Estimated Cost to Fix: $1500 - $3500+
    • Recalls: None Found

Suspension

  • Magnetic Ride Control (If Equipped) Shock Absorber Failure
    • Description/Symptoms: Leaking fluid from the shock absorber, reduced damping performance, uneven ride height, error messages.
    • Solution: Replacement of the faulty shock absorber(s).
    • Estimated Cost to Fix: $500 - $1500+ per shock absorber
    • Recalls: None Found
  • Control Arm Bushing Wear
    • Description/Symptoms: Clunking noises from the suspension, imprecise handling, tire wear.
    • Solution: Replacement of 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 Issues
    • Description/Symptoms: Intermittent display failures, flickering lights, inaccurate gauge readings.
    • Solution: Repair or replacement of the instrument cluster.
    • Estimated Cost to Fix: $300 - $1000+
    • Recalls: None Found
  • Central Convenience Module Failure
    • Description/Symptoms: Issues with power windows, central locking, alarm system, or interior lighting.
    • Solution: Repair or replacement of the central convenience module.
    • Estimated Cost to Fix: $300 - $800+
    • Recalls: None Found

Exterior

  • No Issues Found

Interior

  • Headliner Sagging
    • Description/Symptoms: The headliner fabric detaches from the backing board and sags down.
    • Solution: Replacement or re-gluing of the headliner fabric.
    • Estimated Cost to Fix: $300 - $800+
    • Recalls: None Found
  • Navigation System/Radio Failure
    • Description/Symptoms: System freezes, display malfunctions, no sound output.
    • Solution: Repair or replacement of the navigation system/radio unit.
    • Estimated Cost to Fix: $300 - $1500+
    • Recalls: None Found

Summary

The 2008 Audi S3, while a fun and engaging vehicle, can suffer from several common issues. Engine-related problems, particularly those related to the 2.0L TFSI engine, are a concern. The DSG transmission is another potential trouble spot, especially with the Mechatronic unit. Suspension issues such as the magnetic ride control and control arm bushings can add to the maintenance costs. Electrical issues with the instrument cluster and central convenience module are not uncommon. Interior problems such as headliner sagging can also occur. Overall, potential buyers should be aware of these issues and budget accordingly for potential repairs and maintenance. The severity and cost of these issues vary greatly, but addressing them proactively can help ensure the longevity and enjoyment of the vehicle.

Audi, S3
Audi S3 2008
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