2018 Audi S4 Avant

3.0 TFSI V6 Tiptronic 4WD Euro 6 (s/s) 5dr (349 bhp)

£18,995

Fair price: within 8% of the typical £17,861 for this model, age and mileage, drawing on 118 adverts of this make and model.

Overview

Make: Audi
Model: S4 Avant
Version: 3.0 TFSI V6 Tiptronic 4WD Euro 6 (s/s) 5dr (349 bhp)
Mileage: 100,186 miles
Year: 2018
Fuel type: Petrol
Body type: Estate
Engine: 3.0 L
Gearbox: Automatic
Power: 349 bhp
Seats: 5
CO2: 175 g/km
Colour: White
Doors: 5
Driven wheels: Four Wheel Drive
Gearbox version: Tiptronic
Engine badge: TFSI V6
Emissions standard: Euro 6

About this car

This 2018 Audi S4 Avant has covered 100,186 miles, around 22,800 more than typical for its age. Its asking price of £18,995 is £1,134 above our estimate of £17,861. To estimate its market asking price, we analyse UK dealer adverts for 118 Audi S4 Avant cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 69 days ago. That history is worth bearing in mind when speaking to the dealer. The latest MOT record shows an expiry date of 8 February 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Motornova in Windsor and Maidenhead.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 14 August 2026, 69 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £500 from the first recorded £19,495. 1 price reduction recorded, the latest observed on 30 August 2026.

Recorded asking prices
Date observed	Asking price
14 August 2026	£19,495
30 August 2026	£18,995
21 October 2026	£18,995

Price and mileage comparison

Estimated market asking price: £17,861. The asking price is £1,134 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 118 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 22,800 miles higher than typical for a 2018 Audi S4 Avant.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 8 February 2027. 95,410 miles at the last test.

17 other cars with the same year, trim, gearbox and fuel are for sale from £16,750 to £24,990.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£16,750	104,500 miles
£17,295	90,000 miles
£18,995	82,500 miles
£19,495	75,840 miles
£19,750	75,070 miles

These cars have covered 46,667–104,500 miles, compared with 100,186 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 S4 Avant cars for sale · 2018 Audi S4 Avant price guide

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Dealer

Motornova, Windsor and Maidenhead. Across the dealer network: 17 cars for sale.

Dealer postcode: SL4 6PG.