2021 Audi A5 2.0 TDI S Line

Overview

• Make: Audi
• Model: A5
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (161 bhp)
• Year: 2021
• Mileage: 39,000 miles
• Fuel: Diesel, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 161 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 39,000 miles, this 2021 Audi A5 S Line has covered about 12,000 fewer miles than other 2021 Audi A5 cars. The AskCar estimate for this car is £21,466. It is priced at £19,995, which is £1,471 below that estimate. The AskCar estimate uses 1,830 UK dealer adverts for the Audi A5, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 38 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Wallace Car Sales in Bolton. 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: £1,471 (6%) under the AskCar estimate of £21,466.

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

This 2021 Audi A5 has been on sale for at least 38 days.

Price history

AskCar first saw this advert on 25 September 2026 at £20,495. Its asking price is now £19,995, £500 less. The latest price cut was seen on 13 October 2026.

Price changes recorded:

• 25 September 2026: £20,495
• 13 October 2026: £19,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 31 May 2027.

It has had 3 MOTs. The latest, on 26 May 2026, passed.

Advisories at the latest test: nearside rear nail in tyre.

Mileage at that test: 36,621 miles, which matches the advertised 39,000 miles.

Advertised mileage is about 12,000 miles lower than the median mileage of a 2021 Audi A5 on AskCar.

Similar cars

30 other 2021 Audi A5 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £13,995 to £22,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A5 S Line, 2.0 diesel hatchback, black. Mileage: 37,977 miles. Price: £19,890, £105 less than this car. Dealer: Evans Halshaw Ford Hull East in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/audi-a5-2021-1cb702541806
• 2021 Audi A5 S Line, 2.0 diesel hatchback, white. Mileage: 35,500 miles. Price: £21,995, £2,000 more than this car. Dealer: T & S Elite Cars in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/audi-a5-2021-2e1c075ac6ea
• 2021 Audi A5 S Line, 2.0 diesel hatchback, white. Mileage: 34,684 miles. Price: £19,640, £355 less than this car. Dealer: Evans Halshaw Renault Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a5-2021-7540e09bb445

• The nearest: 2021 Audi A5 S Line, 2.0 diesel hatchback, black, 5 miles from this car. Mileage: 95,115 miles. Price: £15,850, £4,145 less than this car. Dealer: LIV Motors in Prestwich. AskCar page: https://askcar.co.uk/car/audi-a5-2021-a30d3b58600e