2018 Audi A5 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TFSI S Line S tronic 4WD Euro 6 (s/s) 5dr Sportback (249 bhp)
• Year: 2018
• Mileage: 38,000 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 249 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 147 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A5 S Line has covered 38,000 miles, around 33,400 fewer miles than is typical for its age. The dealer is asking £17,990, which is £1,760 below the AskCar estimate of £19,750. To work out the AskCar estimate, we analyse UK dealer adverts for 1,865 Audi A5 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 68 days, and its asking price is down £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Mondial Cars in Northwood. 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

Good value: £1,760 (8%) under the AskCar estimate of £19,750.

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 1,865 priced Audi A5 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Audi A5 with the 2.0 petrol engine is typically advertised at £13,500: the median of the 121 for sale on AskCar, as of 4 November 2026.

Time on sale

The dealer may accept less. This 2018 Audi A5 has been on sale for at least 68 days, and its asking price has been cut by £1,000. About half of 2018 Audi A5 cars are gone from sale within a month of being advertised: 104 of the 204 first advertised between 7 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 28 August 2026 at £18,990. Its asking price is now £17,990, £1,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 28 August 2026: £18,990
• 27 September 2026: £18,490
• 4 November 2026: £17,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 2 March 2027.

It has had 7 MOTs. The latest, on 3 March 2026, passed.

Advisories at the latest test: ALL 4 TYRES CRACKED AND CLOSE TO LIMIT.

Mileage at that test: 37,445 miles, which matches the advertised 38,000 miles.

Advertised mileage is about 33,400 miles lower than the median mileage of a 2018 Audi A5 on AskCar.

Similar cars

26 other 2018 Audi A5 S Line 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £10,989 to £19,999, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A5 S Line, 2.0 petrol hatchback, black. Mileage: 34,150 miles. Price: £18,995, £1,005 more than this car. Dealer: Alpine Motor Company in Dundee. AskCar page: https://askcar.co.uk/car/audi-a5-2018-c9112176bcc1
• 2018 Audi A5 S Line, 2.0 petrol hatchback, grey. Mileage: 32,638 miles. Price: £19,999, £2,009 more than this car. Dealer: Hawco Group in Aberdeen. AskCar page: https://askcar.co.uk/car/audi-a5-2018-9ce0bd6673b0
• 2018 Audi A5 S Line, 2.0 petrol hatchback, grey. Mileage: 47,453 miles. Price: £15,100, £2,890 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a5-2018-4fa27c9cdef7

• The nearest: 2018 Audi A5 S Line, 2.0 petrol hatchback, black, 8 miles from this car. Mileage: 65,775 miles. Price: £13,795, £4,195 less than this car. Dealer: Great London Auto in Willesden. AskCar page: https://askcar.co.uk/car/audi-a5-2018-f029a9f48334