2021 Audi Q4 e-tron S line

Overview

• Make: Audi
• Model: Q4 e-tron
• Trim: S Line
• Version: 40 S Line Auto RWD 5dr (201 bhp)
• Year: 2021
• Mileage: 16,767 miles
• Fuel: Electric
• Body: SUV, 5 doors, 5 seats
• Engine: 201 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 0 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q4 e-tron S Line is advertised with 16,767 miles, approximately 16,500 below the typical mileage for its age. The AskCar estimate for this car is £23,155. It is priced at £22,670, which is £485 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,137 Audi Q4 e-tron cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 108 days, and its asking price is down £810. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Big Motoring World Peterborough, based in Peterborough. 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: £485 (2%) under the AskCar estimate of £23,155.

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 1,137 priced Audi Q4 e-tron adverts across different ages and specifications, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi Q4 e-tron has been on sale for at least 108 days, and its asking price has been cut by £810. About 6 in 10 of 2021 Audi Q4 e-tron cars are gone from sale within a month of being advertised: 61 of the 109 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 17 July 2026 at £23,480. Its asking price is now £22,670, £810 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 17 July 2026: £23,480
• 21 July 2026: £23,640
• 30 July 2026: £23,720
• 3 August 2026: £23,680
• 8 August 2026: £23,520
• 11 August 2026: £23,530
• 18 August 2026: £23,390
• 21 August 2026: £23,250
• 26 August 2026: £23,260
• 31 August 2026: £23,180
• 5 September 2026: £22,990
• 9 September 2026: £23,000
• 15 September 2026: £22,980
• 19 September 2026: £22,770
• 23 September 2026: £23,110
• 26 September 2026: £23,080
• 29 September 2026: £23,110
• 1 October 2026: £23,100
• 6 October 2026: £22,860
• 7 October 2026: £22,890
• 8 October 2026: £22,880
• 13 October 2026: £22,940
• 14 October 2026: £22,950
• 21 October 2026: £22,780
• 29 October 2026: £22,670

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 November 2026.

It has had 2 MOTs. The latest, on 24 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 16,472 miles, which matches the advertised 16,767 miles.

Advertised mileage is about 16,500 miles lower than the median mileage of a 2021 Audi Q4 e-tron on AskCar.

Similar cars

21 other 2021 Audi Q4 e-tron S Line automatic SUVs are for sale at UK dealers, from £2,000 to £23,388, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi Q4 e-tron S Line, SUV, silver. Mileage: 14,567 miles. Price: £20,766, £1,904 less than this car. Dealer: Lookers Car Hub Star City in Birmingham. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-d377608b69e0
• 2021 Audi Q4 e-tron S Line, SUV, purple. Mileage: 21,542 miles. Price: £19,700, £2,970 less than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-bc436b78ec81
• 2021 Audi Q4 e-tron S Line, SUV, silver. Mileage: 22,000 miles. Price: £20,950, £1,720 less than this car. Dealer: Autotech Cars in Nottingham. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-ba873c033f8b