Used 2018 Audi A5 for SaleNationwide

How much does the 2018 Audi A5 cost?

Prices have softened 5.75% compared to this time last year, making it a favorable time to shop this model year.

There are 216 listings available, which gives you a modest amount of inventory to compare before you buy.

Is the 2018 Audi A5 a good car?

Yes — owners rate it 5/5, which points to very strong satisfaction with the 2018 Audi A5.

Owners consistently praise its elegant design, impressive handling, and advanced features. The review summary also highlights its sporty yet luxurious feel and a roomier interior than many competitors, which fits well if you want a premium car that balances style with everyday usability.

With 32.4% of listings marked as good or great deals, you have a meaningful chance to find a competitively priced example if you shop carefully.

Is the 2018 Audi A5 reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The owner feedback points to a dependable ownership experience for many drivers, with praise centered on the car’s overall quality, refined feel, and the confidence it inspires over time. At the same time, some buyers reported condition issues at purchase, so reliability for you may depend heavily on how well a specific used example was maintained.

For used buyers, that means the long-term risk is less about the model’s reputation and more about finding a well-kept car with a clean history and solid maintenance records.

What should I look for when buying a used 2018 Audi A5?

At 63.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and confirm whether any prior damage was repaired properly. A pre-purchase inspection should be a priority, especially if the car has had bodywork, because condition consistency is one of the main concerns raised by owners.

Focus closely on paint matching, panel alignment, tire wear, and signs of interior or mechanical neglect. If a listing looks unusually cheap, make sure the condition supports the price before you move forward.

Is now a good time to buy a used 2018 Audi A5?

This looks like a moderate, selective buyer’s market, so you can be choosy if you’re comparing multiple listings.

• Deal availability: 32.4% of listings are priced as good or great deals.
• Inventory: There are 216 listings available.
• Price trend: Prices have softened 5.75% compared with last year.
• Clean inventory: 63.4% of listings are accident-free.

If you find a listing below $19,001, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 Audi A5's resale value?

The current average of $19,429 sits slightly below last year's $20,614.

That softer pricing suggests the market has already adjusted downward, which can help you buy at a more favorable entry point. For a future seller, that also means resale value may depend more on condition, mileage, and presentation than on broad market momentum alone.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2018 Audi A5 or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 32.4% of listings are priced as good or great deals.
• At 63.4% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 5.75% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: If you want the second-generation A5’s updated design, premium feel, and strong owner approval, the 2018 is the right place to start. If you’re especially price-sensitive, you may want to compare nearby years and focus on the cleanest, best-documented example rather than chasing the lowest sticker price.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.