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: 82,210 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: Blue
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A5 S Line has covered 82,210 miles, around 31,200 more miles than is typical for its age. Its asking price of £16,450 is £44 above the AskCar estimate of £16,406. The AskCar estimate draws on 1,830 Audi A5 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £50. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Car Planet Barnet in New Southgate. 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: £44 (under 1%) over the AskCar estimate of £16,406.

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 24 days.

Price history

AskCar first saw this advert on 9 October 2026 at £16,500. Its asking price is now £16,450, £50 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 9 October 2026: £16,500
• 23 October 2026: £16,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 8 May 2027.

It has had 3 MOTs. The latest, on 1 May 2026, passed.

Advisories at the latest test: nearside rear lower coil spring mounting corroded but not seriously weakened; offside rear lower coil spring mounting corroded but not seriously weakened.

Mileage at that test: 70,431 miles, which matches the advertised 82,210 miles.

Advertised mileage is about 31,200 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, black. Mileage: 77,599 miles. Price: £17,990, £1,540 more than this car. Dealer: Mossgate Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a5-2021-fa8a5775739f
• 2021 Audi A5 S Line, 2.0 diesel hatchback, white. Mileage: 75,492 miles. Price: £18,699, £2,249 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: 73,350 miles. Price: £17,990, £1,540 more than this car. Dealer: Brownroyd Motors in Heywood. AskCar page: https://askcar.co.uk/car/audi-a5-2021-11ba96e7ac1f

• The nearest: 2021 Audi A5 S Line, 2.0 diesel hatchback, white, 12 miles from this car. Mileage: 48,785 miles. Price: £19,250, £2,800 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a5-2021-d131515fdce8