2021 Audi A6 Avant

2.0 TDI S Line S tronic FWD Euro 6 5dr (201 bhp)

£18,491

Fair price: within 8% of the typical £17,785 for this model, age and mileage, drawing on 767 adverts of this make and model.

Overview

Make
Audi
Model
A6 Avant
Trim
S LINE
Version
2.0 TDI S Line S tronic FWD Euro 6 5dr (201 bhp)
Mileage
89,000 miles
Year
2021
Fuel type
Diesel
Body type
Estate
Engine
2.0 L
Gearbox
Automatic
Power
201 bhp
Seats
5
CO2
150 g/km
Colour
Grey
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
S tronic
Engine badge
TDI
Emissions standard
Euro 6

About this car

This 2021 Audi A6 Avant S Line is advertised with 89,000 miles, approximately 37,400 above the typical mileage for its age. At £18,491, it is advertised £706 above our estimated market asking price of £17,785. We use UK dealer asking prices, including 767 Audi A6 Avant listings, and account for the car’s age, mileage and specification. It first appeared in our advert records 5 days ago. Its recorded MOT is valid until 24 September 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at Sapphire Motors in Mill Hill.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 21 October 2026, 5 days ago. Advert duration calculated on 26 October 2026.

Recorded asking prices
Date observedAsking price
21 October 2026£18,491
23 October 2026£18,491

Price and mileage comparison

Estimated market asking price: £17,785. The asking price is £706 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 767 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 37,400 miles higher than typical for a 2021 Audi A6 Avant.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 24 September 2027. 88,820 miles at the last test.

9 other cars with the same year, trim, gearbox and fuel are for sale from £18,603 to £22,490.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£18,60376,000 miles
£19,49065,348 miles
£21,49080,067 miles
£21,67055,920 miles
£21,99054,341 miles

These cars have covered 42,401–80,067 miles, compared with 89,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Audi A6 Avant cars for sale · 2021 Audi A6 Avant price guide

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