2021 Audi A3 • Compare 323 used cars with valuation

Market overview: March-2026 Price Analysis: A used Audi A3 from 2021 currently costs between £13,495 and £23,998. On average, the mileage for this year stands at 46,758 miles. The depreciation and price trend over the last 12 months is -£2,140.

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Carwow

2023

(2023) Audi A3 Sport 150 HP

£19,197

Fair price

You save £503

LN5 8NU Lincolnshire, Lincolnshire

120 g CO2/km comb. - 150 HP (110 kW) - 4.6 Mpg

Carwow

2023

(2023) Audi A3 S-Line 110 HP

£21,499

Fair price

Estimated price £20,917

CW7 3AL Cheshire West And Chester, Cheshire

120 g CO2/km comb. - 110 HP (80 kW) - 5.3 Mpg

Carwow

2023

(2023) Audi A3 S-Line 110 HP

£21,049

Fair price

Estimated price £20,697

CV4 9DU West Midlands, West Midlands

120 g CO2/km comb. - 110 HP (80 kW) - 5.3 Mpg

Carwow

2023

(2023) Audi A3 S-Line 150 HP

£21,800

Fair price

You save £200

ME5 9QG Kent, Kent

131 g CO2/km comb. - 150 HP (110 kW) - 5.8 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

New

Used (2021) Audi A3 Sport 116 HP | Good price

30 TDI Sport 4dr

2021
62,395 miles
Trim level: Sport
2.0L Diesel
Sedan
Manual
116 HP (85 kW)
CO2 emissions: 108 g CO2/km comb.
mpg: 4.1
Details

Good price

£15,276

£15,280

Motors.co.uk

SG1 4QT Hertfordshire, Hertfordshire

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-2%

1 / 4

Used (2021) Audi A3 Design 116 HP | Good price

Hatchback

2021
67,926 miles
Trim level: Design
2.0L Diesel
Sedan
Manual
116 HP (85 kW)
mpg: 60.1
Details

Good price

£14,699

£14,999

Exchange and Mart

OX16 1RH Oxfordshire, Oxfordshire

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New

Used (2021) Audi A3 | Super price

30 TFSI Technik 5dr S Tronic

2021
19,500 miles
1.0L Petrol
Sedan
Automatic
mpg: 54.3
Details

Super price

£15,990

Motors.co.uk

HA8 7EE Greater London, London

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-1%

1 / 4

Used (2021) Audi A3 Sport 147 HP | Good price

35 TFSI Sport 5dr

2021
15,538 miles
Trim level: Sport
1.5L Petrol
Sedan
Manual
147 HP (108 kW)
mpg: 5.3
Details

Good price

£18,224

£18,450

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Carwow

2023

(2023) Audi A3 S-Line 110 HP

£20,989

Fair price

Estimated price £20,512

LE11 5HN Leicestershire, Leicestershire

120 g CO2/km comb. - 110 HP (80 kW) - 5.3 Mpg

Carwow

2021

(2021) Audi A3 Sport 116 HP

£16,272

Fair price

You save £528

SO31 7FL Lower Swanwick, Hampshire

115 g CO2/km comb. - 116 HP (85 kW) - 4.4 Mpg

Carwow

2019

(2019) Audi A3 Sport 150 HP

£15,761

Fair price

Estimated price £15,729

E6 5LU Greater London, London

144 g CO2/km comb. - 150 HP (110 kW) - 6.3 Mpg

Carwow

2021

(2021) Audi A3 S-Line 116 HP

£19,049

Fair price

Estimated price £18,204

S9 1XU Tinsley, South Yorkshire

119 g CO2/km comb. - 116 HP (85 kW) - 4.5 Mpg

1 / 1

Used (2021) Audi A3 Sport 110 HP | Good price

Sportback (2021/21)Sport 30 TFSI

2021
26,777 miles
Trim level: Sport
1.0L Petrol
Sedan
Manual
110 HP (80 kW)
mpg: 47.9
Details

Good price

£15,883

£15,951

Parkers.co.uk

Rainham, London

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-6%

1 / 2

Used (2021) Audi A3 Sport | Good price

TFSI Sport Hatchback

2021
54,732 miles
Trim level: Sport
1.0L Petrol
Hatchback
Manual
Details

Good price

£13,795

£14,795

Motors.co.uk

CR0 3RG Greater London, London

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1 / 1

Used (2021) Audi A3 Sport 150 HP | Good price

Sportback (2021/71)Sport 35 TFSI

2021
87,690 miles
Trim level: Sport
1.5L Petrol
Sedan
Automatic
150 HP (110 kW)
mpg: 46.3
Details

Good price

£14,296

£14,300

Parkers.co.uk

Dunstable, Bedfordshire

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-5%

1 / 1

Used (2021) Audi A3 S-Line 150 HP | Good price

Sportback (2021/21)S Line 35 TFSI

2021
104,305 miles
Trim level: S-Line
1.5L Petrol
Sedan
Automatic
150 HP (110 kW)
mpg: 46.3
Details

Good price

£13,295

£13,995

Parkers.co.uk

Manchester, Manchester

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1 / 4

Used (2021) Audi A3 148 HP | Good price

2021 | 1.5 TFSI 35 Technik

2021
23,258 miles
1.5L Petrol
Sedan
Automatic
148 HP (108 kW)
Details

Good price

£17,800

Dealer

LS12 2QN Armley, West Yorkshire

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-2%

1 / 4

Used (2021) Audi A3 Advanced 110 HP | Good price

30 TFSI Technik 5dr

2021
31,062 miles
Trim level: Advanced
1.0L Petrol
Sedan
Manual
110 HP (80 kW)
Details

Good price

£15,401

£15,721

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2019

(2019) Audi A3 Black Edition 150 HP

£16,945

Fair price

Estimated price £16,309

RM13 8RH Greater London, London

145 g CO2/km comb. - 150 HP (110 kW) - 6.4 Mpg

Carwow

2022

(2022) Audi A3 S-Line 150 HP

£19,400

Fair price

You save £400

WS11 1SL Staffordshire, Staffordshire

126 g CO2/km comb. - 150 HP (110 kW) - 4.8 Mpg

Carwow

2023

(2023) Audi A3 150 HP

£16,790

Fair price

You save £10

DL1 2LD Darlington, Durham

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

Carwow

2023

(2023) Audi A3 Sport 150 HP

£19,290

Super price

You save £2,510

BD2 1AA West Yorkshire, West Yorkshire

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

Used (2021) Audi A3 116 HP | Good price

Sportback (2021/21)Technik 30 TDI

2021
126,936 miles
2.0L Diesel
Sedan
Manual
116 HP (85 kW)
mpg: 64.2
Details

Good price

£9,990

Parkers.co.uk

Peterborough, Cambridgeshire

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-39%

1 / 4

Used (2021) Audi A3 Sport 110 HP | Good price

30 TFSI Sport 4dr

Oct 2021
42,881 miles
Trim level: Sport
1.0L Petrol
Sedan
Manual
110 HP (80 kW)
CO2 emissions: 125 g CO2/km comb.
mpg: 49.6
Details

Good price

£14,990

£24,981

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1 / 1

Used (2021) Audi A3 Sport 150 HP | Super price

Sportback (2021/21)Sport 35 TFSI

2021
36,340 miles
Trim level: Sport
1.5L Petrol
Sedan
Manual
150 HP (110 kW)
mpg: 46.3
Details

Super price

£15,500

Parkers.co.uk

M4 6BQ Greater Manchester, Manchester

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-8%

1 / 1

Used (2021) Audi A3 Sport 150 HP | Good price

Sportback (2021/21)Sport 35 TFSI

2021
77,000 miles
Trim level: Sport
1.5L Petrol
Sedan
Manual
150 HP (110 kW)
mpg: 46.3
Details

Good price

£13,480

£14,780

Parkers.co.uk

Chorley, Lancashire

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-5%

1 / 4

Used (2021) Audi A3 147 HP | Good price

35 TFSI Technik 5dr S Tronic

2021
15,071 miles
1.5L Petrol
Hatchback
Automatic
147 HP (108 kW)
Details

Good price

£18,799

£19,799

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Delivered to you

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1 / 1

Used (2021) Audi A3 Sport 110 HP | Good price

30 TFSI Sport 5dr

2021
32,390 miles
Trim level: Sport
1.0L Petrol
Sedan
Manual
110 HP (80 kW)
CO2 emissions: 120 g CO2/km comb.
mpg: 47.9
Details

Good price

£15,250

Parkers.co.uk

DH7 8TB Meadowfield, Durham

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-2%

1 / 4

Used (2021) Audi A3 Performance | Good price

30 TFSI Technik 5dr S Tronic

2021
44,018 miles
Trim level: Performance
1.0L Petrol
Sedan
Automatic
Details

Good price

£15,599

£15,999

Motors.co.uk

M41 Greater Manchester, Manchester

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-3%

1 / 4

Used (2021) Audi A3 S-Line | Good price

30 TDI S Line 5dr Hatchback

2021
103,771 miles
Trim level: S-Line
2.0L Diesel
Hatchback
Manual
Details

Good price

£12,500

£12,999

Motors.co.uk

NN10 6GA North Northamptonshire, Northamptonshire

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-3%

1 / 4

Used (2021) Audi A3 S-Line | Good price

30 TDI S Line 5dr Hatchback

2021
82,809 miles
Trim level: S-Line
2.0L Diesel
Hatchback
Manual
Details

Good price

£14,500

£14,999

Exchange and Mart

NN10 6GA North Northamptonshire, Northamptonshire

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-1%

1 / 1

Used (2021) Audi A3 116 HP | Good price

Sportback (2021/71)Technik 30 TDI

2021
45,314 miles
2.0L Diesel
Sedan
Manual
116 HP (85 kW)
mpg: 64.2
Details

Good price

£15,544

£15,720

Parkers.co.uk

Rainham, London

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Carwow

2023

(2023) Audi A3 Sport 110 HP

£17,300

Good price

You save £2,000

WS11 1SL Staffordshire, Staffordshire

115 g CO2/km comb. - 110 HP (80 kW) - 5.1 Mpg

Carwow

2019

(2019) Audi A3 Sport 116 HP

£13,197

Fair price

You save £703

S70 5SZ Birdwell, South Yorkshire

139 g CO2/km comb. - 116 HP (85 kW) - 5.3 Mpg

Carwow

2023

(2023) Audi A3 S-Line 150 HP

£24,049

Fair price

Estimated price £23,571

BB12 6EH Lancashire, Lancashire

131 g CO2/km comb. - 150 HP (110 kW) - 5.8 Mpg

Carwow

2019

(2019) Audi A3 Sport 150 HP

£13,539

Super price

You save £2,861

RM13 8RH Greater London, London

142 g CO2/km comb. - 150 HP (110 kW) - 5.4 Mpg

-2%

1 / 4

Used (2021) Audi A3 Sport | Good price

30 TDI Sport 4dr

2021
31,219 miles
Trim level: Sport
2.0L Diesel
Sedan
Manual
mpg: 61.4
Details

Good price

£18,450

£18,950

Parkers.co.uk

BT80 9LU Mid Ulster

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Used (2021) Audi A3 S-Line 150 HP | Good price

Sportback (2021/21)S Line 35 TFSI

2021
65,000 miles
Trim level: S-Line
1.5L Petrol
Sedan
Automatic
150 HP (110 kW)
mpg: 46.3
Details

Good price

£16,330

Parkers.co.uk

Watford, Hertfordshire

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1 / 4

Used (2021) Audi A3 Sport 115 HP | Good price

SPORT 30 2.0TDI 115PS 4 DOOR

2021
63,249 miles
Trim level: Sport
2.0L Diesel
Sedan
Manual
115 HP (84 kW)
mpg: 61.4
Details

Good price

£14,772

Parkers.co.uk

CF48 3SH Dowlais, Powys

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-6%

1 / 1

Used (2021) Audi A3 116 HP | Good price

Sportback (2021/21)Technik 30 TDI

2021
97,256 miles
2.0L Diesel
Sedan
Manual
116 HP (85 kW)
mpg: 64.2
Details

Good price

£11,890

£12,690

Parkers.co.uk

Leeds, West Yorkshire

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1 / 4

Used (2021) Audi A3 148 HP | Good price

2021 | 1.5 TFSI 35 Technik

2021
58,519 miles
1.5L Petrol
Sedan
Automatic
148 HP (108 kW)
Details

Good price

£15,900

Motors.co.uk

WS11 1SL Staffordshire, Staffordshire

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Carwow

2023

(2023) Audi A3 S-Line 110 HP

£21,900

Fair price

Estimated price £20,840

SW17 0HB Greater London, London

120 g CO2/km comb. - 110 HP (80 kW) - 5.3 Mpg

Carwow

2019

(2019) Audi A3 Sport 150 HP

£12,000

Fair price

You save £400

N11 1GN Greater London, London

144 g CO2/km comb. - 150 HP (110 kW) - 6.3 Mpg

Carwow

2022

(2022) Mini Cooper Classic 136 HP

£16,799

Fair price

You save £901

M12 6LP Greater Manchester, Manchester

126 g CO2/km comb. - 136 HP (100 kW) - 5.5 Mpg

Carwow

2022

(2022) Audi A1 Sportback 95 HP

£15,000

Fair price

Estimated price £14,494

ME5 9QG Kent, Kent

124 g CO2/km comb. - 95 HP (69 kW) - 5.5 Mpg

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