2018 Audi A5
2.0 TFSI S Line S tronic FWD Euro 6 2dr (187 bhp)
£16,400
Fair price: within 8% of the typical £16,147 for this model, age and mileage, drawing on 1,862 adverts of this make and model.
Overview
- Make
- Audi
- Model
- A5
- Trim
- S LINE
- Version
- 2.0 TFSI S Line S tronic FWD Euro 6 2dr (187 bhp)
- Mileage
- 45,746 miles
- Year
- 2018
- Fuel type
- Petrol
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 187 bhp
- Seats
- 4
- Colour
- Black
- Doors
- 2
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TFSI
- Emissions standard
- Euro 6
About this car
This 2018 Audi A5 S Line has covered 45,746 miles, around 25,000 fewer than typical for its age. At £16,400, it is advertised £253 above our estimated market asking price of £16,147. We use UK dealer asking prices, including 1,862 Audi A5 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 49 days ago, the asking price has dropped by £1,000. The seller is Sytner Select Cardiff, based in Cardiff.
Stock data from 20 October 2026.
Price history
First seen on 2 September 2026, 49 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £1,000 from the first recorded £17,400. 2 price reductions recorded, the latest observed on 9 October 2026.
| Date observed | Asking price |
|---|---|
| 2 September 2026 | £17,400 |
| 10 September 2026 | £17,600 |
| 25 September 2026 | £16,900 |
| 9 October 2026 | £16,400 |
| 20 October 2026 | £16,400 |
Price and mileage comparison
Estimated market asking price: £16,147. The asking price is £253 above this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 1,862 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 25,000 miles lower than typical for a 2018 Audi A5.
64 other cars with the same year, trim, gearbox and fuel are for sale from £8,990 to £19,999.
| Asking price | Mileage |
|---|---|
| £8,990 | 75,000 miles |
| £9,240 | 145,041 miles |
| £9,890 | 109,000 miles |
| £10,495 | 98,284 miles |
| £10,989 | 100,000 miles |
These cars have covered 14,230–145,041 miles, compared with 45,746 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all Audi A5 cars for sale · 2018 Audi A5 price guide
Similar cars for less
- 2019 Audi A5, 28,452 miles, £14,549, £2,372 under typical, Leeds
- 2018 Audi A5, 37,562 miles, £15,200, £1,882 under typical, Derby
- 2019 Audi A5, 40,977 miles, £13,500, £1,298 under typical, Watford
Dealer
Sytner Select Cardiff, Cardiff. Across the dealer network: 140 branches, 10,337 cars for sale.
Dealer postcode: CF11 8TT.
Dealer opening hours
- Monday
- 09:30-18:30
- Tuesday
- 09:30-18:30
- Wednesday
- 09:30-18:30
- Thursday
- 09:30-18:30
- Friday
- 09:30-18:30
- Saturday
- 09:00-18:30
- Sunday
- 10:00-16:00
Vehicle photos
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