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: 50,584 miles
• Fuel: Electric
• Body: SUV, 5 doors, 5 seats
• Engine: 201 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 0 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q4 e-tron S Line is advertised with 50,584 miles, approximately 17,300 above the typical mileage for its age. Priced at £20,990, it is advertised £1,439 above the AskCar estimate of £19,551. The AskCar estimate draws on 1,137 Audi Q4 e-tron adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 22 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Prestige Cars Of Essex in Epping Forest. 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: £1,439 (7%) over the AskCar estimate of £19,551.

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

This 2021 Audi Q4 e-tron has been on sale for at least 22 days.

Price history

AskCar first saw this advert on 11 October 2026 at £20,990. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 3 December 2026.

It has had 2 MOTs. The latest, on 4 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 45,930 miles, which matches the advertised 50,584 miles.

Advertised mileage is about 17,300 miles higher 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, white. Mileage: 50,200 miles. Price: £17,550, £3,440 less than this car. Dealer: Wcc Auto Group in Heswall. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-1adf2ab04db4
• 2021 Audi Q4 e-tron S Line, SUV, white. Mileage: 52,480 miles. Price: £20,495, £495 less than this car. Dealer: Jack Reid Cars in Carrickfergus. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-ad972026f911
• 2021 Audi Q4 e-tron S Line, SUV, black. Mileage: 46,000 miles. Price: £19,750, £1,240 less than this car. Dealer: Audi Saab in Liverpool. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-5aff8b454dc5

• The nearest: 2021 Audi Q4 e-tron S Line, SUV, grey, 31 miles from this car. Mileage: 94,726 miles. Price: £15,300, £5,690 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-74c7d048d8c9