2015 Audi A6 Avant

2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 5dr (187 bhp)

£9,650

Fair price: within 8% of the typical £9,923 for this model, age and mileage, drawing on 780 adverts of this make and model.

Overview

Make: Audi
Model: A6 Avant
Trim: S LINE
Version: 2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 5dr (187 bhp)
Mileage: 103,390 miles
Year: 2015
Fuel type: Diesel
Body type: Estate
Engine: 2.0 L
Gearbox: Automatic
Power: 187 bhp
Seats: 5
CO2: 115 g/km
Colour: Blue
Doors: 5
Driven wheels: Front Wheel Drive
Gearbox version: S tronic
Engine badge: TDI; ultra
Emissions standard: Euro 6

About this car

This 2015 Audi A6 Avant S Line is advertised with 103,390 miles, approximately 12,300 above the typical mileage for its age. Our estimated market asking price is £9,923. This car is advertised at £9,650, which is £273 below that figure. To estimate its market asking price, we analyse UK dealer adverts for 780 Audi A6 Avant cars across different ages and specifications. This car was first seen in our listings data 85 days ago. Its MOT is recorded as valid until 28 April 2027. The advertised mileage is consistent with the latest MOT reading. It is for sale at Junction 21 Motors in Weston-super-Mare.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 27 July 2026, 85 days ago. Advert duration calculated on 20 October 2026.

Recorded asking prices
Date observed	Asking price
27 July 2026	£9,650
28 July 2026	£9,650
19 October 2026	£9,650

Price and mileage comparison

Estimated market asking price: £9,923. The asking price is £273 below 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 780 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 12,300 miles higher than typical for a 2015 Audi A6 Avant.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 28 April 2027. 101,205 miles at the last test.

16 other cars with the same year, trim, gearbox and fuel are for sale from £7,990 to £18,995.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£7,990	156,937 miles
£8,195	115,649 miles
£8,495	132,090 miles
£9,390	108,000 miles
£9,495	101,000 miles

These cars have covered 25,000–156,937 miles, compared with 103,390 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 · 2015 Audi A6 Avant price guide

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Dealer

Junction 21 Motors, Weston-super-Mare. Across the dealer network: 69 cars for sale.

Dealer postcode: BS24 6UU.