2018 Audi A3

2.0 TFSI S Line S tronic 4WD Euro 6 (s/s) 5dr Sportback (187 bhp)

£17,880

Fair price: within 8% of the typical £19,317 for this model, age and mileage, drawing on 6,484 adverts of this make and model.

Overview

Make
Audi
Model
A3
Trim
S LINE
Version
2.0 TFSI S Line S tronic 4WD Euro 6 (s/s) 5dr Sportback (187 bhp)
Mileage
21,983 miles
Year
2018
Fuel type
Petrol
Body type
Hatchback
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
5
CO2
134 g/km
Colour
Black
Doors
5
Driven wheels
Four Wheel Drive
Gearbox version
S tronic
Engine badge
TFSI
Emissions standard
Euro 6

About this car

This 2018 Audi A3 S Line is advertised with 21,983 miles, approximately 43,700 below the typical mileage for its age. Its asking price of £17,880 is £1,437 below our estimate of £19,317. Our estimate draws on 6,484 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 112 days ago, and its asking price has since fallen by £1,110. It may give you a starting point for a conversation about price. MOT records show an expiry date of 30 May 2027, and the latest recorded mileage is consistent with the advert. The seller is EMG Motor Group Boston Mazda, based in Boston.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 30 June 2026, 112 days ago. Advert duration calculated on 20 October 2026. Net asking-price reduction: £1,110 from the first recorded £18,990. 8 price reductions recorded, the latest observed on 13 October 2026.

Recorded asking prices
Date observedAsking price
30 June 2026£18,990
11 July 2026£18,990
13 July 2026£18,695
14 July 2026£18,695
21 July 2026£18,795
22 July 2026£18,795
25 July 2026£18,595
26 July 2026£18,595
31 July 2026£18,795
11 August 2026£18,610
12 August 2026£18,610
13 August 2026£18,495
14 August 2026£18,495
20 August 2026£17,995
26 August 2026£18,195
6 September 2026£17,995
12 September 2026£18,145
18 September 2026£17,995
13 October 2026£17,880
19 October 2026£17,880

Price and mileage comparison

Estimated market asking price: £19,317. The asking price is £1,437 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 6,484 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 43,700 miles lower than typical for a 2018 Audi A3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 30 May 2027. 21,588 miles at the last test.

30 other cars with the same year, trim, gearbox and fuel are for sale from £9,250 to £15,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£9,250103,000 miles
£9,695101,514 miles
£9,99586,636 miles
£10,39533,589 miles
£10,49097,862 miles

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 A3 cars for sale · 2018 Audi A3 price guide

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Dealer

EMG Motor Group Boston Mazda, Boston. Across the dealer network: 18 branches, 712 cars for sale.

Dealer postcode: PE21 8UJ.

Dealer opening hours

Monday
08:30-18:00
Tuesday
08:30-18:00
Wednesday
08:30-18:00
Thursday
08:30-18:00
Friday
08:30-18:00
Saturday
09:00-17:00
Sunday
10:00-16:00

Vehicle photos