2021 Audi A5 2.0 TDI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 2dr (160 bhp)
• Year: 2021
• Mileage: 40,000 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 160 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 40,000 miles, this 2021 Audi A5 S Line has covered about 11,000 fewer miles than other 2021 Audi A5 cars. Its asking price of £19,750 is £904 below the AskCar estimate of £20,654. To work out the AskCar estimate, we analyse UK dealer adverts for 1,830 Audi A5 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 79 days, and its asking price has been cut by £1,000. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Torque Point in Leighton Buzzard. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £904 (4%) under the AskCar estimate of £20,654.

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 1,830 priced Audi A5 adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A5 with the 2.0 diesel engine is typically advertised at £19,700: the median of the 119 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi A5 has been on sale for at least 79 days, and its asking price has been cut by £1,000. About half of 2021 Audi A5 cars are gone from sale within a month of being advertised: 84 of the 157 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 15 August 2026 at £20,750. Its asking price is now £19,750, £1,000 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 15 August 2026: £20,750
• 11 September 2026: £20,500
• 22 September 2026: £20,450
• 8 October 2026: £20,250
• 28 October 2026: £19,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 17 September 2027.

It has had 3 MOTs. The latest, on 18 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,154 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 11,000 miles lower than the median mileage of a 2021 Audi A5 on AskCar.

Similar cars

11 other 2021 Audi A5 S Line 2.0 diesel automatic coupes are for sale at UK dealers, from £16,500 to £22,299, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A5 S Line, 2.0 diesel coupe, grey. Mileage: 41,825 miles. Price: £18,995, £755 less than this car. Dealer: Sinclair Direct in Bridgend. AskCar page: https://askcar.co.uk/car/audi-a5-2021-3bb30e12bec9
• 2021 Audi A5 S Line, 2.0 diesel coupe, grey. Mileage: 43,176 miles. Price: £18,999, £751 less than this car. Dealer: Bridgend Motor Group in Morley. AskCar page: https://askcar.co.uk/car/audi-a5-2021-38e8e15d10aa
• 2021 Audi A5 S Line, 2.0 diesel coupe, white. Mileage: 35,890 miles. Price: £20,950, £1,200 more than this car. Dealer: Murison Cars Rosehill in Aberdeen. AskCar page: https://askcar.co.uk/car/audi-a5-2021-4a1fc41fa6d1

• The nearest: 2021 Audi A5 S Line, 2.0 diesel coupe, grey, 31 miles from this car. Mileage: 47,200 miles. Price: £18,490, £1,260 less than this car. Dealer: Rovia Cars in Waltham Cross. AskCar page: https://askcar.co.uk/car/audi-a5-2021-1e11f52ed388