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Audi A3 Sportback (petrol) • 1,434 cars with Valuation

Market overview: Petrol Audi A3 Sportback (September-2026): There are currently 1,434 used petrol Audi A3 Sportback cars for sale. Prices range from £8,295 to £32,110, with a median price of £18,495. AutoUncle has identified 169 cars as being offered below market price. The typical selling time for a petrol Audi A3 Sportback is approximately 11 days, and 50.1% of the listings have recently been reduced in price (Source: AutoUncle market data, September-2026).

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Used Audi A3 Sportback S-Line 150 HP (110 kW) 2022 Grey Hatchback

(2022) Audi A3 Sportback S-Line 150 HP

Fair price

ME5 9QG Kent, Kent

127 g CO2/km comb. - 150 HP (110 kW) - 5.9 Mpg

Carwow

Used Audi A3 Sportback 110 HP (80 kW) 2023 Black Hatchback

(2023) Audi A3 Sportback 110 HP

Fair price

Estimated price £16,242

PR2 2JZ Ashton-On-Ribble, Lancashire

125 g CO2/km comb. - 110 HP (80 kW) - 5.5 Mpg

Carwow

Used Audi A3 Sportback S-Line 110 HP (80 kW) 2023 Black Hatchback

(2023) Audi A3 Sportback S-Line 110 HP

Fair price

G32 9QA Glasgow City, Glasgow

124 g CO2/km comb. - 110 HP (80 kW) - 5.4 Mpg

Carwow

Used Audi A3 Sportback S-Line 150 HP (110 kW) 2022 White Hatchback

(2022) Audi A3 Sportback S-Line 150 HP

Fair price

LN2 4LD Lincolnshire, Lincolnshire

136 g CO2/km comb. - 150 HP (110 kW) - 6.0 Mpg

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-4%

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Used (2024) Audi A3 Sportback S-Line 150 HP | Good price

2024 S line 35 TFSI S Line 5dr S

2024
28,940 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 135 g CO2/km comb.
5.9 mpg
Details

Good price

£19,397

£20,340

WS111SL

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1 / 3

Used (2024) Audi A3 Sportback Sport 110 HP | Good price

2024 Sport 30 TFSI Sport 5dr 30

2024
19,735 miles
Trim level: Sport
1.0L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 128 g CO2/km comb.
5.6 mpg
Details

Good price

£15,565

SO31 7FL Lower Swanwick, Hampshire

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-2%

1 / 4

Used (2024) Audi A3 Sportback S-Line 110 HP | Good price

2024 S line 30 TFSI

2024
23,093 miles
Trim level: S-Line
1.0L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 132 g CO2/km comb.
5.8 mpg
Details

Good price

£17,733

£18,153

DN31 1SF North East Lincolnshire, Lincolnshire

Availability verified

-3%

1 / 4

Used (2023) Audi A3 Sportback 110 HP | Good price

2023 Technik 30 TFSI

2023
17,302 miles
1.0L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 125 g CO2/km comb.
5.5 mpg
Details

Good price

£16,030

£16,600

ME5 9QG Kent, Kent

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Used Audi A3 Sportback 110 HP (80 kW) 2022 Black Hatchback

(2022) Audi A3 Sportback 110 HP

Fair price

SO31 7FL Lower Swanwick, Hampshire

125 g CO2/km comb. - 110 HP (80 kW) - 5.5 Mpg

Carwow

Used Audi A3 Sportback S-Line 150 HP (110 kW) 2022 White Hatchback

(2022) Audi A3 Sportback S-Line 150 HP

Fair price

LE11 5NH Leicestershire, Leicestershire

135 g CO2/km comb. - 150 HP (110 kW) - 5.9 Mpg

Carwow

Used Audi A3 Sportback Sport 110 HP (80 kW) 2021 Silver Hatchback

(2021) Audi A3 Sportback Sport 110 HP

Fair price

BS5 9PJ Bristol City, Bristol

128 g CO2/km comb. - 110 HP (80 kW) - 5.6 Mpg

Carwow

Used Audi A3 Sportback Sport 150 HP (110 kW) 2018 Hatchback

(2018) Audi A3 Sportback Sport 150 HP

Good price

You save £1,401

113 g CO2/km comb. - 150 HP (110 kW) - 5.0 Mpg

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Used (2017) Audi A3 Sportback Sport 150 HP | Good price

2017 Sport 1.4 TFSI

2017
81,744 miles
Trim level: Sport
1.4L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 110 g CO2/km comb.
4.7 mpg
Details

Good price

£7,790

£8,490

CW1 5NP Cheshire East, Cheshire

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New (2026) Audi A3 Sportback Sport 116 HP | Good price

- 1.5 TFSI 116 Sport 5dr S Tronic

2026
0 miles
Trim level: Sport
1.5L Petrol
Hatchback
Automatic
116 HP (85 kW)
CO2 emissions: 120 g CO2/km comb.
5.2 mpg
Details

Good price

£29,070

BH124QN

Availability verified

Used (2024) Audi A3 Sportback S-Line 150 HP | Good price

2024 S line 35 TFSI S Line 5dr 35

2024
28,807 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 136 g CO2/km comb.
6 mpg
Details

Good price

£17,950

£17,990

SY1 3GA Shropshire, Shropshire

Availability verified

-1%

1 / 1

Used (2018) Audi A3 Sportback Sport 150 HP | Good price

2018 Sport 1.5 TFSI Sport 5dr S

2018
36,000 miles
Trim level: Sport
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 113 g CO2/km comb.
5 mpg
Details

Good price

£12,899

£13,119

BL12ST

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1 / 4

Used (2024) Audi A3 Sportback S-Line 150 HP | Good price

2024 S line 35 TFSI S Line 5dr S

2024
42,083 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 135 g CO2/km comb.
5.9 mpg
Details

Good price

£18,240

£18,250

SW170HB

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1 / 4

Used (2024) Audi A3 Sportback Sport 110 HP | Super price

2024 Sport 30 TFSI Sport 5dr 30

2024
53,683 miles
Trim level: Sport
1.0L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 128 g CO2/km comb.
5.6 mpg
Details

Super price

£13,103

BS59PJ

Availability verified

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Used Audi A3 Sportback S-Line 110 HP (80 kW) 2022 Black Hatchback

(2022) Audi A3 Sportback S-Line 110 HP

Fair price

Estimated price £17,528

TS18 3RW Stockton-On-Tees, Durham

132 g CO2/km comb. - 110 HP (80 kW) - 5.8 Mpg

Carwow

Used Audi A3 Sportback S-Line 150 HP (110 kW) 2022 White Hatchback

(2022) Audi A3 Sportback S-Line 150 HP

Fair price

Estimated price £17,408

S13 9BS Handsworth, South Yorkshire

136 g CO2/km comb. - 150 HP (110 kW) - 6.0 Mpg

Carwow

Used Audi A3 Sportback S-Line 110 HP (80 kW) 2024 Hatchback

(2024) Audi A3 Sportback S-Line 110 HP

Fair price

SY1 3GA Shropshire, Shropshire

132 g CO2/km comb. - 110 HP (80 kW) - 5.8 Mpg

Carwow

Used Audi A3 Sportback Advanced 110 HP (80 kW) 2021 Black Hatchback

(2021) Audi A3 Sportback Advanced 110 HP

Good price

You save £1,305

ST3 7PG Rough Close, Staffordshire

125 g CO2/km comb. - 110 HP (80 kW) - 5.5 Mpg

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Used (2018) Audi A3 Sportback Black Edition 150 HP | Good price

2018 Black Edition 1.5 TFSI

2018
40,318 miles
Trim level: Black Edition
1.5L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 118 g CO2/km comb.
5.2 mpg
Details

Good price

£13,700

£14,400

ME2 2NY Medway, Kent

Availability verified

-5%

1 / 3

Used (2019) Audi A3 Sportback S-Line 150 HP | Good price

2019 S line 35 TFSI

2019
54,280 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 146 g CO2/km comb.
6.4 mpg
Details

Good price

£12,300

£13,000

ME2 2NY Medway, Kent

Availability verified

-2%

Used (2024) Audi A3 Sportback Sport 150 HP | Good price

2024 Sport 35 TFSI Sport 5dr S

2024
74,665 miles
Trim level: Sport
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 130 g CO2/km comb.
5.7 mpg
Details

Good price

£14,990

£15,450

SY1 3GA Shropshire, Shropshire

Availability verified

New

Used (2024) Audi A3 Sportback S-Line 150 HP | Good price

2024 S line 35 TFSI S Line 5dr S

2024
32,664 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 135 g CO2/km comb.
5.9 mpg
Details

Good price

£18,990

HU91DN

Availability verified

New

Used (2024) Audi A3 Sportback S-Line 150 HP | Super price

2024 S line 35 TFSI S Line 5dr 35

2024
60,000 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 136 g CO2/km comb.
6 mpg
Details

Super price

£15,200

BL96HH

Availability verified

-15%

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Used (2019) Audi A3 Sportback S-Line 150 HP | Super price

2020 S line 35 TFSI S Line 5dr S

2019
43,733 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 147 g CO2/km comb.
6.4 mpg
Details

Super price

£13,749

£16,199

SA79AG

Availability verified

New

Used (2024) Audi A3 Sportback S-Line 110 HP | Good price

2024 S line 30 TFSI S Line 5dr 30

2024
42,000 miles
Trim level: S-Line
1.0L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 132 g CO2/km comb.
5.8 mpg
Details

Good price

£16,250

ST44DD

Availability verified

New

Used (2024) Audi A3 Sportback S-Line 150 HP | Super price

2024 S line 35 TFSI S Line 5dr 35

2024
37,778 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 136 g CO2/km comb.
6 mpg
Details

Super price

£15,950

BB1 3HT Blackburn With Darwen, Lancashire

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Used (2022) Audi A3 Sportback Sport 110 HP | Good price

2022 Sport 30 TFSI

2022
45,534 miles
Trim level: Sport
1.6L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 128 g CO2/km comb.
4 mpg
Details

Good price

£15,149

£14,949

WA8 9WZ Halton, Cheshire

Availability verified

-7%

1 / 4

Used (2023) Audi A3 Sportback S-Line 150 HP | Good price

2023 S line 35 TFSI

2023
54,489 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 127 g CO2/km comb.
6 mpg
Details

Good price

£16,164

£17,428

RM13 8RH Greater London, London

Availability verified

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Used Audi A3 Sportback 110 HP (80 kW) 2023 White Hatchback

(2023) Audi A3 Sportback 110 HP

Fair price

GU15 3DT Surrey, Surrey

125 g CO2/km comb. - 110 HP (80 kW) - 5.5 Mpg

Carwow

Used Audi A3 Sportback Sport 116 HP (85 kW) 2024 Black Hatchback

(2024) Audi A3 Sportback Sport 116 HP

Fair price

L5 9XN Merseyside, Merseyside

127 g CO2/km comb. - 116 HP (85 kW) - 5.6 Mpg

Carwow

Used Audi A3 Sportback S-Line 110 HP (80 kW) 2023 Blue Hatchback

(2023) Audi A3 Sportback S-Line 110 HP

Fair price

ME5 9QG Kent, Kent

132 g CO2/km comb. - 110 HP (80 kW) - 5.8 Mpg

Carwow

Used Audi A3 Sportback S-Line 110 HP (80 kW) 2022 Blue Hatchback

(2022) Audi A3 Sportback S-Line 110 HP

Fair price

Estimated price £18,017

B69 2AS West Midlands, West Midlands

124 g CO2/km comb. - 110 HP (80 kW) - 5.4 Mpg

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Used (2018) Audi A3 Sportback S-Line 150 HP | Good price

1.5 TFSI CoD 35 S line S Tronic

2018
61,050 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 147 g CO2/km comb.
6.4 mpg
Details

Good price

£12,600

£12,990

ST1 3JE Fenton, Staffordshire

Availability verified

-2%

1 / 4

Used (2024) Audi A3 Sportback S-Line 150 HP | Super price

2024 S line 35 TFSI S Line 5dr S

2024
48,615 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 135 g CO2/km comb.
5.9 mpg
Details

Super price

£16,920

£17,320

BB1 3NU Lancashire, Lancashire

Availability verified

New

1 / 3

Used (2024) Audi A3 Sportback S-Line 150 HP | Good price

2024 S line 35 TFSI S Line 5dr S

2024
31,575 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 135 g CO2/km comb.
5.9 mpg
Details

Good price

£19,197

DN31 2SU North East Lincolnshire, Lincolnshire

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1 / 4

Used (2024) Audi A3 Sportback S-Line 110 HP | Good price

2024 S line 30 TFSI S Line 5dr 30

2024
26,927 miles
Trim level: S-Line
1.0L Petrol
Hatchback
Manual
110 HP (80 kW)
CO2 emissions: 132 g CO2/km comb.
5.8 mpg
Details

Good price

£17,250

NR32AW

Availability verified

New

1 / 4

Used (2024) Audi A3 Sportback S-Line 150 HP | Good price

2024 S line 35 TFSI S Line 5dr S

2024
44,211 miles
Trim level: S-Line
1.5L Petrol
Hatchback
Automatic
150 HP (110 kW)
CO2 emissions: 135 g CO2/km comb.
5.9 mpg
Details

Good price

£17,955

BB1 3NU Lancashire, Lancashire

Availability verified

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Used Audi A3 Sportback S-Line 150 HP (110 kW) 2021 White Hatchback

(2021) Audi A3 Sportback S-Line 150 HP

Fair price

GU15 3DT Surrey, Surrey

135 g CO2/km comb. - 150 HP (110 kW) - 5.6 Mpg

Carwow

Used Audi A3 Sportback S-Line 110 HP (80 kW) 2020 Black Hatchback

(2020) Audi A3 Sportback S-Line 110 HP

Fair price

Estimated price £14,042

ST16 1GZ Staffordshire, Staffordshire

132 g CO2/km comb. - 110 HP (80 kW) - 5.8 Mpg

Carwow

Used Audi A3 Sportback S-Line 150 HP (110 kW) 2024 Hatchback

(2024) Audi A3 Sportback S-Line 150 HP

Super price

You save £2,551

135 g CO2/km comb. - 150 HP (110 kW) - 5.9 Mpg

Carwow

Used Audi A3 Sportback 110 HP (80 kW) 2023 Black Hatchback

(2023) Audi A3 Sportback 110 HP

Fair price

CW73AL Cheshire West And Chester, Cheshire

125 g CO2/km comb. - 110 HP (80 kW) - 5.5 Mpg

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