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: 35,000 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 35,000 miles on the clock. Priced at £19,990, it is advertised £1,282 below the AskCar estimate of £21,272. The AskCar estimate uses 1,137 UK dealer adverts for the Audi Q4 e-tron, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 3 days. The latest MOT recorded 35,610 miles, above the advertised mileage. Check this with the dealer. Its recorded MOT is valid until 10 February 2027. It is advertised by Audi Saab in Wirral. 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: £1,282 (6%) under the AskCar estimate of £21,272.

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

AskCar first saw this 2021 Audi Q4 e-tron advertised 3 days ago. 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 30 October 2026 at £19,990. 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 10 February 2027.

It failed its MOT on 11 February 2026 (front windscreen washer provides insufficient washer liquid; nearside rear inner tyre has ply or cords exposed) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 35,610 miles. The advert says 35,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 1,700 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, blue. Mileage: 34,000 miles. Price: £21,490, £1,500 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-ae3115133e67
• 2021 Audi Q4 e-tron S Line, SUV, blue. Mileage: 32,609 miles. Price: £21,399, £1,409 more than this car. Dealer: car360 in Cannock. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-483020d2d3b4
• 2021 Audi Q4 e-tron S Line, SUV, black. Mileage: 37,500 miles. Price: £21,545, £1,555 more than this car. Dealer: Drift Bridge Audi Approved - Epsom in Epsom. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-3d1a1e42410e

• The nearest: 2021 Audi Q4 e-tron S Line, SUV, black, under a mile from this car. Mileage: 46,000 miles. Price: £19,750, £240 less than this car. Dealer: Audi Saab in Liverpool. AskCar page: https://askcar.co.uk/car/audi-q4-e-tron-2021-5aff8b454dc5