2018 Audi A6 Saloon

2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 4dr (187 bhp)

£13,488

Above the going rate: £1,426 over the typical £12,062 for this model, age and mileage, drawing on 842 adverts of this make and model.

Overview

Make: Audi
Model: A6 Saloon
Trim: S LINE
Version: 2.0 TDI ultra S Line S tronic FWD Euro 6 (s/s) 4dr (187 bhp)
Mileage: 92,000 miles
Year: 2018
Fuel type: Diesel
Body type: Saloon
Engine: 2.0 L
Gearbox: Automatic
Power: 187 bhp
Seats: 5
CO2: 110 g/km
Colour: Grey
Doors: 4
Driven wheels: Front Wheel Drive
Gearbox version: S tronic
Engine badge: TDI; ultra
Emissions standard: Euro 6

About this car

This 2018 Audi A6 Saloon S Line is advertised with 92,000 miles, approximately 23,100 above the typical mileage for its age. Our estimated market asking price is £12,062. This car is advertised at £13,488, which is £1,426 above that figure. To estimate its market asking price, we analyse UK dealer adverts for 842 Audi A6 Saloon cars across different ages and specifications. This car was first seen in our listings data 144 days ago. Its MOT is recorded as valid until 6 March 2027. The advertised mileage is consistent with the latest MOT reading. It is for sale at Auto Group in Brent.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 29 May 2026, 144 days ago. Advert duration calculated on 20 October 2026.

Recorded asking prices
Date observed	Asking price
29 May 2026	£10,988
2 June 2026	£13,488
6 July 2026	£13,488
19 October 2026	£13,488

Price and mileage comparison

Estimated market asking price: £12,062. The asking price is £1,426 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 842 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 23,100 miles higher than typical for a 2018 Audi A6 Saloon.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 6 March 2027. 92,234 miles at the last test.

38 other cars with the same year, trim, gearbox and fuel are for sale from £7,995 to £21,998.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£7,995	115,000 miles
£8,950	180,000 miles
£9,770	100,000 miles
£9,999	103,000 miles
£11,490	131,000 miles

These cars have covered 24,000–180,000 miles, compared with 92,000 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 Saloon cars for sale · 2018 Audi A6 Saloon price guide

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Dealer

Auto Group, Brent. Across the dealer network: 24 cars for sale.

Dealer postcode: HA0 1TX.