2021 Audi A5 2.0 TFSI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TFSI 45 S Line S tronic 4WD Euro 6 (s/s) 5dr Sportback (261 bhp)
• Year: 2021
• Mileage: 23,282 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 261 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 170 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A5 S Line has covered 23,282 miles, around 26,800 fewer miles than is typical for its age. The AskCar estimate for this car is £26,611. It is priced at £25,595, which is £1,016 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,865 Audi A5 cars across different ages and specifications. We first recorded this car for sale 5 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Automotive Whetstone Audi, based in Whetstone. 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: £1,016 (3%) under the AskCar estimate of £26,611.

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 2021 Audi A5 with the 2.0 petrol engine is typically advertised at £19,700: the median of the 128 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 Audi A5 advertised 5 days ago. About half of 2021 Audi A5 cars are gone from sale within a month of being advertised: 89 of the 167 first advertised between 8 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £25,595. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 12 February 2027.

It has had 3 MOTs. The latest, on 30 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 19,510 miles, which matches the advertised 23,282 miles.

Advertised mileage is about 26,800 miles lower than the median mileage of a 2021 Audi A5 on AskCar.

Similar cars

19 other 2021 Audi A5 S Line 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £14,600 to £22,500, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A5 S Line, 2.0 petrol hatchback, white. Mileage: 24,480 miles. Price: £22,500, £3,095 less than this car. Dealer: Invicta Chery Warrington in Warrington. AskCar page: https://askcar.co.uk/car/audi-a5-2021-9cbe07c6e6f9
• 2021 Audi A5 S Line, 2.0 petrol hatchback, grey. Mileage: 28,272 miles. Price: £21,290, £4,305 less than this car. Dealer: Anchor Cars in Reading. AskCar page: https://askcar.co.uk/car/audi-a5-2021-7f7223370507
• 2021 Audi A5 S Line, 2.0 petrol hatchback, blue. Mileage: 29,098 miles. Price: £20,680, £4,915 less than this car. Dealer: Evans Halshaw MG Grantham in Grantham. AskCar page: https://askcar.co.uk/car/audi-a5-2021-c83a49bbac8b

• The nearest: 2021 Audi A5 S Line, 2.0 petrol hatchback, black, 1 miles from this car. Mileage: 57,388 miles. Price: £19,550, £6,045 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a5-2021-caa65da35359