2003 Audi S8

Here’s a comprehensive breakdown of common issues and complaints associated with the 2003 Audi S8, following your specified format.

The 2003 Audi S8 is a high-performance luxury sedan known for its powerful V8 engine, quattro all-wheel drive, and sophisticated styling. The sole engine option was a 4.2-liter V8 producing 360 horsepower and 317 lb-ft of torque. It was paired with a 5-speed automatic transmission. Owners generally appreciate the S8’s performance, handling, and luxurious interior. Downsides often mentioned include higher maintenance costs due to its complex systems and the age of the vehicle.

Engine

4.2L V8

• Timing Chain Tensioner Failure
  • Description/Symptoms: Rattling noise upon startup, especially when cold. Can eventually lead to catastrophic engine damage if the timing chain jumps.
  • Solution: Replace the timing chain tensioners and possibly the timing chain itself.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks around the valve covers, leading to burning smells and potential oil loss.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant loss, overheating. Common leak points are hoses, thermostat housing, and the coolant expansion tank.
  • Solution: Identify the source of the leak and replace the faulty component.
  • Estimated Cost to Fix: Varies depending on the leak location, $100 - $800+
  • Recalls: None Found

Transmission

5-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Shuddering during acceleration, particularly at lower speeds. Can also cause stalling.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Harsh or delayed shifting, slipping between gears.
  • Solution: Replace or rebuild the valve body.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: The car sits low on one or more corners, the suspension takes a long time to raise, or the compressor runs constantly. “Air Suspension Fault” warning on the dash.
  • Solution: Replace the air suspension compressor.
  • Estimated Cost to Fix: $800 - $1500+
  • Recalls: None Found
• Air Strut Leaks
  • Description/Symptoms: Similar to compressor failure, the car will sag, and the compressor will work overtime. Hissing sound from the struts.
  • Solution: Replace the leaking air strut(s).
  • Estimated Cost to Fix: $800 - $1800 per strut
  • Recalls: None Found

Electrical

• Instrument Cluster Pixelation
  • Description/Symptoms: Pixels in the instrument cluster display fade or disappear, making it difficult to read information.
  • Solution: Replace or repair the instrument cluster. Some shops specialize in repairing the LCD screen.
  • Estimated Cost to Fix: $200 - $800+ (repair) / $500-$1500+ (replacement)
  • Recalls: None Found
• Central Locking System Malfunctions
  • Description/Symptoms: Doors not locking or unlocking properly, alarm system issues.
  • Solution: Diagnose and repair or replace faulty door lock actuators, central locking pump, or wiring.
  • Estimated Cost to Fix: $150 - $500+ per door (actuators) / $300 - $800+ (pump)
  • Recalls: None Found

Exterior

• Headlight Lens Clouding/Yellowing
  • Description/Symptoms: Headlight lenses become cloudy or yellowed, reducing light output.
  • Solution: Polish the headlight lenses or replace the headlight assemblies.
  • Estimated Cost to Fix: $50 - $150 (polishing) / $300 - $800+ (replacement)
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, motor failure, or leaking.
  • Solution: Repair or replace the sunroof motor, mechanism, or seals.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found
• Navigation System/Radio Failure
  • Description/Symptoms: Navigation system malfunctions, radio not working, or display issues.
  • Solution: Repair or replace the navigation unit or radio.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Summary

The 2003 Audi S8, while a desirable vehicle, has its share of common issues due to its age and complexity. Engine and transmission issues can be costly, especially those related to the timing chain and torque converter. The air suspension is another area prone to failure and can result in significant repair bills. Electrical and interior problems, while less critical, can still be annoying and expensive to fix. Potential buyers should be aware of these potential issues and factor them into their purchasing and maintenance budget. Thorough pre-purchase inspection by a qualified mechanic familiar with Audis is highly recommended.