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: 73,350 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: Black
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A5 S Line is advertised with 73,350 miles, approximately 22,400 above the typical mileage for its age. Its asking price of £17,990 is £522 above the AskCar estimate of £17,468. To work out the AskCar estimate, we analyse UK dealer adverts for 1,830 Audi A5 cars across different ages and specifications. Since we first spotted the advert 158 days ago, the asking price has dropped by £2,000. The latest recorded MOT expiry date is 20 October 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Brownroyd Motors, based in Heywood. 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: £522 (2%) over the AskCar estimate of £17,468.

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 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £19,990. Its asking price is now £17,990, £2,000 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 29 May 2026: £19,990
• 4 October 2026: £18,990
• 16 October 2026: £17,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 20 October 2026; ask the dealer for the current MOT.

It failed its MOT on 13 October 2025 (nearside front tyre has a bulge, caused by separation or partial failure of its structure) and passed 1 day later, on 14 October 2025.

There were no advisories at the latest test.

Mileage at that test: 61,996 miles, which matches the advertised 73,350 miles.

Advertised mileage is about 22,400 miles higher 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, white. Mileage: 72,000 miles. Price: £20,495, £2,505 more than this car. Dealer: MC Autosales in Magherafelt. AskCar page: https://askcar.co.uk/car/audi-a5-2021-acefeb031022
• 2021 Audi A5 S Line, 2.0 diesel hatchback, white. Mileage: 75,492 miles. Price: £18,699, £709 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/audi-a5-2021-997ff71f3c05
• 2021 Audi A5 S Line, 2.0 diesel hatchback, black. Mileage: 77,599 miles. Price: £17,990, the same price as this car. Dealer: Mossgate Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a5-2021-fa8a5775739f

• The nearest: 2021 Audi A5 S Line, 2.0 diesel hatchback, grey, 1 miles from this car. Mileage: 111,500 miles. Price: £13,995, £3,995 less than this car. Dealer: Castleton Motor Group in Rochdale. AskCar page: https://askcar.co.uk/car/audi-a5-2021-dda167264eda