2018 Audi A5

The 2018 Audi A5 is a sleek and sporty coupe, cabriolet, and Sportback (four-door hatchback) known for its stylish design, comfortable interior, and engaging driving experience. The most common engine is the 2.0-liter turbocharged four-cylinder, producing 252 horsepower and 273 lb-ft of torque. Other engine options are the S5 with a 3.0-liter turbocharged V6 producing 354 horsepower and 369 lb-ft of torque. Transmission options include a 7-speed S tronic dual-clutch automatic and a 6-speed manual (only available on specific trims and configurations). Owners generally appreciate the A5’s aesthetics, refined interior, and nimble handling, but some have voiced concerns about reliability, infotainment system quirks, and the cost of maintenance.

Engine

2.0L Turbocharged Inline-4 (252 hp)

• Excessive Oil Consumption
  • Description/Symptoms: Some 2.0T engines experience higher than expected oil consumption, requiring more frequent oil additions between scheduled services. Blueish exhaust smoke can be a symptom.
  • Solution: In some cases, Audi has issued technical service bulletins and software updates to address the issue. If consumption is severe, piston ring replacement or complete engine overhaul may be necessary.
  • Estimated Cost to Fix: $2,000 - $6,000+ depending on the extent of the repair.
  • Recalls: None Found

3.0L Turbocharged V6 (354 hp) No Issues Found

Transmission

7-Speed S Tronic Dual-Clutch Automatic

• Mechatronic Unit Failure
  • Description/Symptoms: The mechatronic unit, which controls the transmission’s shifting functions, can fail. Symptoms include jerky shifting, hesitation, inability to shift, and transmission malfunction warnings on the dashboard.
  • Solution: Replacement of the mechatronic unit is typically required.
  • Estimated Cost to Fix: $2,500 - $4,000
  • Recalls: None Found

6-Speed Manual No Issues Found

Suspension

• Creaking/Squeaking Noises
  • Description/Symptoms: Some owners have reported creaking or squeaking noises coming from the suspension, particularly when going over bumps or turning. The noises can originate from various suspension components, including control arm bushings, sway bar links, or struts.
  • Solution: Diagnosis involves inspecting the suspension components for wear or damage. Replacement of worn bushings or links is usually the fix.
  • Estimated Cost to Fix: $100 - $500+ depending on the component and labor.
  • Recalls: None Found

Electrical

• Infotainment System Glitches
  • Description/Symptoms: The MMI infotainment system can experience glitches, including screen freezes, slow response times, Bluetooth connectivity issues, and navigation errors.
  • Solution: Software updates are often the first step in addressing these issues. In some cases, a system reset or replacement of the MMI unit may be needed.
  • Estimated Cost to Fix: $0 (for software updates) to $1,500+ for MMI unit replacement.
  • Recalls: None Found
• Sensor Failure
  • Description/Symptoms: The Parking assist sensors are very sensitive. They will falsely alert in conditions such as rain or snow.
  • Solution: Replacement of the sensor or cleaning the sensor.
  • Estimated Cost to Fix: $100-$1000
  • Recalls: None Found

Exterior

• Sunroof Issues
  • Description/Symptoms: The sunroof can experience issues such as getting stuck, failing to close properly, or producing excessive wind noise when closed.
  • Solution: Lubricating the sunroof tracks and seals is a common first step. More severe cases may require replacement of the sunroof motor or entire sunroof assembly.
  • Estimated Cost to Fix: $50 - $1,500+ depending on the repair.
  • Recalls: None Found

Interior

• Rattling Noises
  • Description/Symptoms: Owners have reported various rattling noises emanating from the interior, particularly from the dashboard, door panels, and rear deck.
  • Solution: Locating and securing the source of the rattle is required. This may involve adding padding or tightening loose fasteners.
  • Estimated Cost to Fix: $50 - $300+ depending on the complexity of the repair.
  • Recalls: None Found

Summary

The 2018 Audi A5, while desirable for its design and performance, can present owners with several potential issues. The most concerning and potentially expensive problems revolve around the 2.0T engine’s oil consumption and the 7-speed S tronic transmission’s mechatronic unit failures. Electrical glitches, suspension noises, and interior rattles are other common complaints. Overall, while not inherently unreliable, the A5 requires diligent maintenance and a watchful eye for potential problems, which can be costly to repair.