2018 Audi S5

3.0 TFSI V6 Cabriolet Tiptronic 4WD Euro 6 (s/s) 2dr (349 bhp)

£18,040

Fair price: within 8% of the typical £17,730 for this model, age and mileage, drawing on 344 adverts of this make and model.

Overview

Make
Audi
Model
S5
Version
3.0 TFSI V6 Cabriolet Tiptronic 4WD Euro 6 (s/s) 2dr (349 bhp)
Mileage
83,099 miles
Year
2018
Fuel type
Petrol
Body type
Convertible
Engine
3.0 L
Gearbox
Automatic
Power
349 bhp
Seats
4
CO2
177 g/km
Colour
Black
Doors
2
Driven wheels
Four Wheel Drive
Gearbox version
Tiptronic
Engine badge
TFSI V6
Emissions standard
Euro 6

About this car

This 2018 Audi S5 is advertised with 83,099 miles, approximately 17,000 above the typical mileage for its age. Its asking price of £18,040 is £310 above our estimate of £17,730. The estimate uses 344 UK dealer adverts for the Audi S5, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 53 days ago, the asking price has dropped by £1,220. Its recorded MOT is valid until 2 May 2027, and its advertised mileage is consistent with the latest MOT reading. You can find this car at Ryds Group in Stoke Newington.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 29 August 2026, 53 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £1,220 from the first recorded £19,260. 29 price reductions recorded, the latest observed on 20 October 2026.

Recorded asking prices
Date observedAsking price
29 August 2026£19,260
4 September 2026£18,990
5 September 2026£18,960
6 September 2026£18,890
7 September 2026£18,880
8 September 2026£18,860
9 September 2026£18,840
11 September 2026£18,850
12 September 2026£18,840
13 September 2026£18,830
14 September 2026£18,810
15 September 2026£18,720
16 September 2026£18,700
17 September 2026£18,790
19 September 2026£18,730
20 September 2026£18,720
21 September 2026£18,700
22 September 2026£18,640
23 September 2026£18,530
24 September 2026£18,540
25 September 2026£18,530
26 September 2026£18,540
27 September 2026£18,590
28 September 2026£18,510
29 September 2026£18,520
30 September 2026£18,490
1 October 2026£18,390
3 October 2026£18,410
4 October 2026£18,370
5 October 2026£18,390
8 October 2026£18,320
9 October 2026£18,350
10 October 2026£18,220
11 October 2026£18,340
12 October 2026£18,360
14 October 2026£18,310
15 October 2026£18,340
16 October 2026£18,210
17 October 2026£18,190
18 October 2026£18,140
19 October 2026£18,060
20 October 2026£18,040

Price and mileage comparison

Estimated market asking price: £17,730. The asking price is £310 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 344 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 17,000 miles higher than typical for a 2018 Audi S5.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 2 May 2027. 80,733 miles at the last test.

57 other cars with the same year, trim, gearbox and fuel are for sale from £14,990 to £25,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£14,990101,358 miles
£15,600104,147 miles
£15,750107,000 miles
£15,800102,000 miles
£16,00060,000 miles

These cars have covered 31,337–107,000 miles, compared with 83,099 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 S5 cars for sale · 2018 Audi S5 price guide

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Dealer

Ryds Group, Stoke Newington. Across the dealer network: 56 cars for sale.

Dealer postcode: N16 6DB.

Dealer opening hours

Monday
09:00-18:00
Tuesday
09:00-18:00
Wednesday
09:00-18:00
Thursday
09:00-18:00
Friday
09:00-15:00
Saturday
Closed
Sunday
10:00-19:00

Vehicle photos