2004 Audi S4

Introduction:

The 2004 Audi S4 is a high-performance sedan known for its potent V8 engine, quattro all-wheel-drive system, and luxurious interior. It was available with a 4.2-liter V8 engine paired with either a 6-speed manual transmission or a 6-speed automatic transmission.

Engine

4.2L V8

• Fuel Pump Failure:
  • Symptoms: Intermittent engine stalling, loss of power
  • Solution: Replace fuel pump
  • Estimated Cost to Fix: $1,000 - $1,500+
  • Recalls: None Found
• Timing Chain Tensioner Failure:
  • Symptoms: Noisy engine operation, reduced performance
  • Solution: Replace timing chain tensioner
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• Intake Manifold Flaps Stuck Open:
  • Symptoms: Loss of power, rough idle
  • Solution: Replace intake manifold
  • Estimated Cost to Fix: $800 - $1,200+
  • Recalls: None Found

Transmission

6-Speed Manual Transmission

• Synchronizer Failure:
  • Symptoms: Difficulty shifting gears, grinding noises
  • Solution: Replace synchronizers
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found

6-Speed Automatic Transmission

• Torque Converter Failure:
  • Symptoms: Slipping gears, delayed engagement
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $1,800 - $2,800+
  • Recalls: None Found
• Transmission Control Module (TCM) Failure:
  • Symptoms: Incorrect gear selection, transmission faults
  • Solution: Replace TCM
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Suspension

• Rear Control Arm Bushings Worn:
  • Symptoms: Clunking or squeaking noises, reduced handling
  • Solution: Replace bushings
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found
• Front Strut Mounts Worn:
  • Symptoms: Vibrations, noise while turning
  • Solution: Replace strut mounts
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Electrical

• Electrical Gremlins:
  • Symptoms: Intermittent electrical issues, such as flickering lights or faulty gauges
  • Solution: Diagnose and repair wiring or components
  • Estimated Cost to Fix: Varies depending on the issue
  • Recalls: None Found
• Alternator Failure:
  • Symptoms: Flickering lights, battery drain
  • Solution: Replace alternator
  • Estimated Cost to Fix: $600 - $1,000+
  • Recalls: None Found

Exterior

• Fog Light Housings Moisture:
  • Symptoms: Condensation inside fog light housings
  • Solution: Replace fog light housings
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found
• Rear Fender Arch Blistering:
  • Symptoms: Paint bubbling or blistering on the rear fender arches
  • Solution: Repair or replace fenders
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Interior

• Center Armrest Latch Failure:
  • Symptoms: Armrest not closing or latch not engaging
  • Solution: Replace armrest latch
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Instrument Cluster Pixel Failure:
  • Symptoms: Faded or missing pixels in instrument cluster display
  • Solution: Replace instrument cluster
  • Estimated Cost to Fix: $600 - $1,000+
  • Recalls: None Found

Summary:

The 2004 Audi S4 is a well-regarded sports sedan, but it is not without its issues. While the engine and transmission are generally reliable, the V8 engine can experience some expensive problems. The suspension and electrical systems can also develop issues, but they are not typically as severe or costly to repair. The interior and exterior are also prone to some minor but annoying problems.

Overall, the 2004 Audi S4 is a solid car for those who can afford its potential maintenance costs. However, prospective buyers should be prepared for some repairs and expenses, especially if the vehicle has high mileage or has not been regularly maintained.