Used 2018 Audi A5 for SaleNationwide

How much does the 2018 Audi A5 cost?

Prices have softened 4.52% compared to this time last year, making it a favorable time to shop this model year.

There are 229 listings available, which gives you a modest pool to compare before you buy.

Is the 2018 Audi A5 a good car?

Yes — the 2018 Audi A5 earns a 5/5 user rating, which points to strong owner satisfaction.

Owners consistently praise its elegant design, impressive handling, and advanced features. They also like its sporty yet luxurious feel and the roomier interior compared with competitors. For you, that means the A5 fits especially well if you want a stylish premium car that still feels usable day to day.

With 38.0% of listings marked as good or great deals, there is a meaningful amount of market opportunity 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 also points to a dependable ownership experience for many shoppers, with praise centered on the car’s refined feel and the confidence it inspires over time. At the same time, some buyers have reported condition issues at purchase, so used examples can vary more than you might expect.

For you, the main long-term ownership risk is buying a poorly maintained or inconsistently presented example, so condition matters as much as mileage.

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

At 62.9% 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. Then prioritize a pre-purchase inspection so you can check for signs of uneven wear, poor repairs, or cosmetic shortcuts. Focus closely on overall condition, since owner feedback suggests that some listings may vary more than others in how well they were maintained.

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

This looks like a moderate, selective buyer’s market, so you can shop patiently and still find worthwhile options.

• Deal availability: 38.0% of listings are priced as good or great deals.
• Inventory: There are 229 listings available.
• Price trend: Prices have softened 4.52% compared with last year.
• Clean inventory: 62.9% of listings are accident-free.

If you find a listing below $18,992, 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 $19,449 sits slightly below last year's $20,369.

That softer pricing suggests the market has already adjusted downward, which can help you buy at a more favorable entry point. If you plan to sell later, the current trend means your resale outcome will depend heavily on how well you preserve condition and how carefully you choose your purchase price today. A well-bought example gives you a better chance of limiting depreciation pressure over time.

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:

• 38.0% of listings are priced as good or great deals.
• At 62.9% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 4.52% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line:

You should lean toward the 2018 if you want the second-generation A5’s updated design, strong owner satisfaction, and a market that still offers some deal potential. If you are especially price-sensitive, a nearby year may be worth comparing, but the 2018 is the better primary target when you want the newer-generation package and are willing to shop carefully for condition and history.

These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.