Used 2018 Audi A5 for SaleNationwide

How much does the 2018 Audi A5 cost?

Prices have softened 5.33% compared to this time last year, making it a favorable time to shop this model year.

There are 223 listings available, which gives you a useful amount of inventory to compare.

If you find a listing below $18,993.09, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2018 Audi A5 a good car?

Yes — owners give it 5/5, which is a strong signal that it delivers on what shoppers want. The user feedback consistently points to its elegant design, impressive handling, and advanced features, while also highlighting a sporty yet luxurious feel and a roomy interior compared with competitors. For you, that means the 2018 A5 makes the most sense if you want a premium car that blends style with everyday usability. 33.6% of listings are priced as good or great deals, so there are still opportunities 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 emphasizes that the car feels reliable and dependable in day-to-day use, with many drivers describing it as a vehicle they can count on over time. At the same time, a few buyers reported condition issues at purchase, so your long-term ownership risk is less about the model’s appeal and more about finding a well-kept example.

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

At 67.3% 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, especially if the car has had multiple owners or shows signs of uneven wear. Focus on overall condition, because the owner feedback suggests some inconsistency in how well individual cars were maintained before sale.

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

This is a moderate market, so you can shop selectively without expecting every listing to be a bargain.

• Deal availability: 33.6% of listings are priced as good or great deals.
• Inventory: There are 223 listings available.
• Price trend: Prices have softened 5.33% compared with last year.
• Clean inventory: 67.3% of listings are accident-free.

If you find a listing below $18,993.09, 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 $19,491 sits slightly below last year's $20,588.

That price movement suggests the market has eased, which can be a mixed signal for future sellers. On one hand, softer pricing can make your car easier to buy today; on the other, it means you may not see the same appreciation in value that you would in a tighter market. If you plan to resell later, condition and documentation will matter even more because buyers will likely compare your car against a fairly active used market.

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:

• 33.6% of listings are priced as good or great deals.
• At 67.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 5.33% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line:

The 2018 is the right pick if you want the redesigned A5’s blend of style, premium features, and everyday usability, especially if you value a newer-generation feel without moving up to a later year. If your priority is price sensitivity, you can still shop this year carefully and focus on the better-priced listings, but you should be especially selective about condition and history before buying.

These recommendations are based on CarGurus' proprietary market data from September 4, 2026, CarGurus experts' opinions, and generative AI.