2018 Audi S5 3.0 TFSI V6

Overview

• Make: Audi
• Model: S5
• Version: 3.0 TFSI V6 Sportback Tiptronic 4WD Euro 6 (s/s) 5dr (349 bhp)
• Year: 2018
• Mileage: 80,400 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 4 seats
• Engine: 3.0 litres, 349 bhp
• Gearbox: Automatic (Tiptronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 174 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi S5 is advertised with 80,400 miles, approximately 13,800 above the typical mileage for its age. The dealer is asking £18,495, which is £981 below the AskCar estimate of £19,476. To work out the AskCar estimate, we analyse UK dealer adverts for 361 Audi S5 cars across different ages and specifications. We first recorded this advert 22 days ago, and its asking price has since fallen by £1,000. Its advertised mileage matches the government's MOT record. You can find this car at Hampton Car Sales in Northampton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £981 (5%) under the AskCar estimate of £19,476.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 361 priced Audi S5 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi S5 with the 3.0 petrol engine is typically advertised at £20,200: the median of the 61 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Audi S5 has been on sale for at least 22 days.

Price history

AskCar first saw this advert on 13 October 2026 at £19,495. Its asking price is now £18,495, £1,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 13 October 2026: £19,495
• 19 October 2026: £18,995
• 3 November 2026: £18,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 24 September 2027.

It has had 10 MOTs. The latest, on 25 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 80,287 miles, which matches the advertised 80,400 miles.

Advertised mileage is about 13,800 miles higher than the median mileage of a 2018 Audi S5 on AskCar.