2006 Audi S4

Introduction:

The 2006 Audi S4 is a compact executive sedan renowned for its performance and luxury. It packs a potent 4.2-liter V8 engine that generates 344 horsepower and 302 lb-ft of torque, paired with a 6-speed manual or a 6-speed automatic transmission. While drivers appreciate the S4’s thrilling driving experience and sophisticated interior, it has encountered a few common issues over the years.

Engine

4.2-liter V8

• Oil Consumption: Some S4s experience excessive oil consumption, requiring frequent top-ups or engine repairs.
  • Solution: Replacing piston rings, valve seals, or the entire engine.
  • Estimated Cost to Fix: $3,000 - $10,000+
  • Recalls: None Found
• Timing Chain Tensioner Failure: The timing chain tensioner can fail, leading to noise, reduced engine performance, and potential catastrophic damage.
  • Solution: Replacing the timing chain tensioner and related components.
  • Estimated Cost to Fix: $1,500 - $2,500
  • Recalls: None Found

Transmission

6-Speed Manual

• Synchronizer Wear: High-mileage S4s may experience worn synchronizers, making it difficult or noisy to shift gears.
  • Solution: Replacing the synchronizer rings or rebuilding the transmission.
  • Estimated Cost to Fix: $1,000 - $2,000
  • Recalls: None Found

6-Speed Automatic

• Mechatronic Unit Failure: The Mechatronic unit controls the transmission’s operation and can malfunction, causing erratic shifting, loss of power, or transmission failure.
  • Solution: Replacing the Mechatronic unit.
  • Estimated Cost to Fix: $2,500 - $4,000
  • Recalls: None Found

Suspension

• Front Lower Control Arm Bushings: The front lower control arm bushings can wear out prematurely, causing clunking noises, reduced handling, and uneven tire wear.
  • Solution: Replacing the control arm bushings.
  • Estimated Cost to Fix: $300 - $600 per side
  • Recalls: None Found
• Rear Subframe Mounts: The rear subframe mounts can develop cracks, leading to a rattling noise when driving over rough roads.
  • Solution: Reinforcing or replacing the subframe mounts.
  • Estimated Cost to Fix: $1,000 - $2,000
  • Recalls: None Found

Electrical

• Ignition Switch Failure: The ignition switch can fail, causing the vehicle to lose power while driving or making it impossible to start.
  • Solution: Replacing the ignition switch.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Electrical Control Module (ECM) Failure: The ECM can fail, resulting in various issues such as engine misfires, reduced performance, or even a no-start condition.
  • Solution: Replacing the ECM.
  • Estimated Cost to Fix: $1,500 - $2,500
  • Recalls: None Found

Exterior

• Headlight Condensation: Moisture can accumulate inside the headlights, especially during humid weather.
  • Solution: Replacing the headlight seals or ventilating the headlights.
  • Estimated Cost to Fix: $500 - $1,000 per headlight
  • Recalls: None Found
• Trunk Lid Latch Failure: The trunk lid latch can fail, making it difficult or impossible to open the trunk.
  • Solution: Replacing the latch mechanism.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Interior

• Climate Control Malfunction: The climate control system can malfunction, causing erratic temperature control or a lack of airflow.
  • Solution: Replacing the climate control module or the blower motor.
  • Estimated Cost to Fix: $500 - $1,500
  • Recalls: None Found
• Navigation System Failure: The navigation system can experience software glitches or hardware failures, affecting its functionality.
  • Solution: Updating the software or replacing the navigation unit.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Summary:

The 2006 Audi S4 is a high-performance vehicle with potential issues, particularly in its engine, transmission, and suspension. While these issues can be expensive to repair, the vehicle offers an exhilarating driving experience and luxurious amenities that appeal to many drivers.