2019 Audi S5

Introduction: The 2019 Audi S5 is a performance-oriented coupe that combines a luxurious interior with a powerful engine. It features a 3.0-liter turbocharged V6 engine producing 349 horsepower and 369 lb-ft of torque, paired with an 8-speed automatic transmission. The S5 is praised for its sleek design, spacious cabin, and impressive handling, but some owners have reported issues with certain components.

Engine

• 3.0L Turbocharged V6
  • Intake Valve Carbon Buildup: Carbon deposits accumulate on the intake valves, reducing engine performance and causing rough idling, hesitation, and decreased fuel efficiency. Solution: Clean the intake valves using walnut blasting or other methods. Estimated Cost to Fix: $400 - $800+
  • Timing Chain Tensioner Failure: The timing chain tensioner may fail, causing a rattling noise, rough running, and potential engine damage. Solution: Replace the timing chain tensioner. Estimated Cost to Fix: $2,000 - $3,000+
  • PCM Software Update: The Powertrain Control Module (PCM) software may need to be updated to address engine performance issues, such as poor fuel economy or sluggish acceleration. Solution: Update the PCM software at an authorized Audi dealer. Estimated Cost to Fix: Free under warranty, otherwise ~$200+
  • High-Pressure Fuel Pump Failure: The high-pressure fuel pump may fail, causing loss of engine power, rough idling, and difficulty starting. Solution: Replace the high-pressure fuel pump. Estimated Cost to Fix: $1,000 - $1,500+
  • Turbocharger Boost Pressure Sensor Failure: The turbocharger boost pressure sensor may fail, resulting in reduced engine power and turbo lag. Solution: Replace the boost pressure sensor. Estimated Cost to Fix: $200 - $400+

Transmission

• 8-Speed Automatic
  • Shifting Hesitations: The transmission may hesitate or jerk during gear changes, especially when shifting from low to second gear. Solution: Update the transmission software or replace the transmission control module. Estimated Cost to Fix: Free under warranty, otherwise ~$500+
  • Mechatronic Unit Failure: The mechatronic unit, which controls the transmission, may fail, causing transmission problems, such as slipping gears, harsh shifting, or loss of power. Solution: Replace the mechatronic unit. Estimated Cost to Fix: $3,000 - $5,000+

Suspension

• Front Control Arm Bushings Wear: The front control arm bushings may wear out prematurely, causing knocking or clunking noises when driving over bumps. Solution: Replace the control arm bushings. Estimated Cost to Fix: $300 - $600+
• Rear Spring Sagging: The rear springs may sag over time, reducing ride height and affecting handling. Solution: Replace the rear springs. Estimated Cost to Fix: $500 - $800+

Electrical

• Battery Drain Issue: The battery may drain prematurely, even when the vehicle is not in use. Solution: Identify and repair any parasitic battery drains, such as faulty modules or electrical components. Estimated Cost to Fix: $200 - $1,000+
• Xenon Headlight Ballast Failure: The ballast for the xenon headlights may fail, causing one or both headlights to stop working. Solution: Replace the faulty ballast. Estimated Cost to Fix: $300 - $500+

Exterior

• Rear Diffuser Fading: The rear diffuser may fade or discolor over time due to exposure to sunlight. Solution: Touch up or replace the rear diffuser. Estimated Cost to Fix: $200 - $500+
• Tail Light Condensation: Condensation may accumulate inside the tail lights, especially after a car wash or in humid weather. Solution: Inspect the tail lights for leaks or cracks and seal any gaps. Estimated Cost to Fix: Free under warranty, otherwise ~$100+

Interior

• Sunroof Creaking: The sunroof may creak or make noises when opening or closing. Solution: Lubricate or adjust the sunroof mechanism. Estimated Cost to Fix: $50 - $150+
• Ambient Lighting Issues: The ambient lighting may malfunction or produce uneven lighting. Solution: Update the software or replace the ambient lighting modules. Estimated Cost to Fix: $200 - $500+

Recalls:

• NHTSA Campaign Number: 20V079000: Parking brake may not engage properly
• NHTSA Campaign Number: 19V049000: Rear suspension failure
• NHTSA Campaign Number: 19V163000: Fuel pump failure

Summary: The 2019 Audi S5 is generally a reliable vehicle, but some owners have experienced issues related to the engine, transmission, suspension, and electrical components. The severity and cost of the issues vary depending on the specific problem. The engine carbon buildup issue is a relatively common concern, while serious issues such as timing chain tensioner failure and mechatronic unit failure can be costly to repair. It is important for owners to address any issues promptly to prevent further damage or safety concerns.