Used Audi diesel • 9,578 listings compared on price

Market overview: Market overview for used Audi diesel (April-2026): AutoUncle has price-compared 9,578 used Audi diesel vehicles from 42 dealer sites. The three most popular models are currently Audi Q5, Audi A3, Audi A6, with prices ranging from £3,995 to £49,991 and a median price of £14,950. The most common body type is SUV. AutoUncle has identified 1,803 cars currently listed below expected market value, and 37.3% of listings have had a price reduction in the last 30 days (largest saving: £9,168). The average selling time for a used Audi diesel is 24 days. (Source: AutoUncle market data, April-2026)

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Used Audi Q5 S-Line 190 HP (139 kW) 2019 Grey SUV

(2019) Audi Q5 S-Line 190 HP

Fair price

You save £1,201

NP19 4YR Newport, Gwent

194 g CO2/km comb. - 190 HP (139 kW) - 7.3 Mpg

Carwow

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

(2024) Audi A3 Sportback S-Line 150 HP

Fair price

CA3 0ET Cumberland, Cumbria

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

Carwow

Used Audi A7 Sportback S-Line 286 HP (210 kW) 2021 Hatchback

(2021) Audi A7 Sportback S-Line 286 HP

Super price

You save £3,205

187 g CO2/km comb. - 286 HP (210 kW) - 7.1 Mpg

Carwow

Used Audi A4 S-Line 190 HP (139 kW) 2019 White Estate

(2019) Audi A4 S-Line 190 HP

Good price

You save £1,201

M417TB Urmston, Manchester

140 g CO2/km comb. - 190 HP (139 kW) - 53.3 Mpg

Price checked by AutoUncle

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Good price

Fair price

A bit pricey

Expensive

-1%

1 / 4

Used (2019) Audi A5 S-Line 190 HP | Good price

DIESEL COUPE 40 TDI Quattro S Line

2019
53,640 miles
Trim level: S-Line
2.0L Diesel
Coupe
Automatic
190 HP (139 kW)
CO2 emissions: 161 g CO2/km comb.
mpg: 54.3
Details

Good price

£16,199

£16,499

CW7 Cheshire West And Chester, Cheshire

Availability verified

-1%

1 / 1

New (2026) Audi A6 204 HP | Good price

- 2.0 TDI Quattro 204 Edition 1

2026
0 miles
2.0L Diesel
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 143 g CO2/km comb.
mpg: 5.5
Details

Good price

£61,701

£62,884

M16 9UA Greater Manchester, Manchester

Availability verified

-4%

1 / 3

Used (2019) Audi A4 Sport 150 HP | Good price

- 35 TDI Sport 4dr S Tronic

2019
74,971 miles
Trim level: Sport
2.0L Diesel
Sedan
Automatic
150 HP (110 kW)
CO2 emissions: 118 g CO2/km comb.
mpg: 5.7
Details

Good price

£13,242

£13,884

PO2 9QZ Hilsea, Hampshire

Availability verified

-3%

1 / 3

Used (2019) Audi Q2 Sport 116 HP | Good price

- 30 TDI Sport 5dr S Tronic

2019
28,512 miles
Trim level: Sport
1.6L Diesel
SUV
Automatic
116 HP (85 kW)
CO2 emissions: 156 g CO2/km comb.
mpg: 5.9
Details

Good price

£14,560

£15,103

SO31 7FL Lower Swanwick, Hampshire

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Used Audi A6 Black Edition 204 HP (150 kW) 2021 Sedan

(2021) Audi A6 Black Edition 204 HP

Fair price

CW7 Cheshire West And Chester, Cheshire

148 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

Carwow

Used Audi A3 Sport 150 HP (110 kW) 2024 Sedan

(2024) Audi A3 Sport 150 HP

Super price

You save £2,760

BB1 3NU Lancashire, Lancashire

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

Carwow

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

(2024) Audi A3 Sportback S-Line 150 HP

Fair price

You save £1,000

S60 5BD Sheffield, South Yorkshire

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

Carwow

Used Audi Q5 Sport 190 HP (139 kW) 2018 Silver SUV

(2018) Audi Q5 Sport 190 HP

Good price

You save £1,301

CW7 Cheshire West And Chester, Cheshire

132 g CO2/km comb. - 190 HP (139 kW) - 56.5 Mpg

-5%

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

A3 DIESEL SALOON 30 TDI Sport 4dr

2021
42,010 miles
Trim level: Comfort
2.0L Diesel
Sedan
Automatic
150 HP (110 kW)
CO2 emissions: 116 g CO2/km comb.
mpg: 4.4
Details

Super price

£16,499

£17,399

CW7 Cheshire West And Chester, Cheshire

Availability verified

-7%

1 / 4

Used (2021) Audi A7 Sportback S-Line 286 HP | Super price

- 50 TDI Quattro S Line 5dr Tip

2021
57,360 miles
Trim level: S-Line
3.0L Diesel
Hatchback
Automatic
286 HP (210 kW)
CO2 emissions: 187 g CO2/km comb.
mpg: 7.1
Details

Super price

£23,399

£25,299

CW7 Cheshire West And Chester, Cheshire

Availability verified

1 / 4

Used (2023) Audi A7 Sportback Sport 204 HP | Super price

- 40 TDI Quattro Sport 5dr S

2023
26,316 miles
Trim level: Sport
2.0L Diesel
Hatchback
Automatic
204 HP (150 kW)
CO2 emissions: 152 g CO2/km comb.
mpg: 5.7
Details

Super price

£29,140

£28,443

PO2 9QZ Hilsea, Hampshire

Availability verified

-5%

1 / 4

Used (2018) Audi Q5 S-Line 190 HP | Good price

DIESEL ESTATE 2.0 TDI Quattro S

2018
59,320 miles
Trim level: S-Line
2.0L Diesel
SUV
Automatic
190 HP (139 kW)
CO2 emissions: 133 g CO2/km comb.
mpg: 55.4
Details

Good price

£18,399

£19,399

CW7 Cheshire West And Chester, Cheshire

Availability verified

-3%

1 / 4

Used (2023) Audi A4 Design 163 HP | Super price

- Avant 35 TDI Technik 5dr S

2023
70,797 miles
Trim level: Design
2.0L Diesel
Estate
Automatic
163 HP (119 kW)
CO2 emissions: 129 g CO2/km comb.
mpg: 4.9
Details

Super price

£15,518

£16,052

SO31 7FL Lower Swanwick, Hampshire

Availability verified

-7%

1 / 4

Used (2023) Audi Q3 S-Line 150 HP | Super price

- 35 TDI S Line 5dr Tronic

2023
71,850 miles
Trim level: S-Line
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 140 g CO2/km comb.
mpg: 5.3
Details

Super price

£17,640

£18,995

W1H7AB

Availability verified

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Used Audi A6 S-Line 204 HP (150 kW) 2020 Black Sedan

(2020) Audi A6 S-Line 204 HP

Fair price

TS6 6UR Redcar And Cleveland, North Yorkshire

142 g CO2/km comb. - 204 HP (150 kW) - 5.4 Mpg

Carwow

Used Audi Q5 S-Line 190 HP (139 kW) 2020 White SUV

(2020) Audi Q5 S-Line 190 HP

Good price

You save £1,300

ME5 9QG Kent, Kent

194 g CO2/km comb. - 190 HP (139 kW) - 7.3 Mpg

Carwow

Used Audi A6 S-Line 286 HP (210 kW) 2021 Estate

(2021) Audi A6 S-Line 286 HP

Good price

You save £1,950

184 g CO2/km comb. - 286 HP (210 kW) - 6.9 Mpg

Carwow

Used Audi A6 S-Line 204 HP (150 kW) 2021 Estate

(2021) Audi A6 S-Line 204 HP

Fair price

You save £1,151

149 g CO2/km comb. - 204 HP (150 kW) - 5.7 Mpg

-4%

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Used (2018) Audi TT S-Line 184 HP | Good price

- 2.0 TDI Ultra S Line 2dr

2018
82,500 miles
Trim level: S-Line
2.0L Diesel
Coupe
Manual
184 HP (135 kW)
CO2 emissions: 124 g CO2/km comb.
mpg: 4.7
Details

Good price

£10,449

£10,949

WD19 4HX Hertfordshire, Hertfordshire

Availability verified

-1%

1 / 4

Used (2017) Audi A7 Sportback S-Line 272 HP | Super price

- 3.0 TDI Quattro 272 S Line 5dr

2017
85,600 miles
Trim level: S-Line
3.0L Diesel
Hatchback
Automatic
272 HP (200 kW)
CO2 emissions: 142 g CO2/km comb.
mpg: 5.4
Details

Super price

£12,750

£12,950

DE217RW

Availability verified

-10%

1 / 3

Used (2017) Audi Q7 S-Line 218 HP | Super price

DIESEL ESTATE 3.0 TDI 218 Quattro

2017
63,960 miles
Trim level: S-Line
3.0L Diesel
SUV
Automatic
218 HP (160 kW)
CO2 emissions: 150 g CO2/km comb.
mpg: 48.7
Details

Super price

£19,599

£21,999

CW7 Cheshire West And Chester, Cheshire

Availability verified

-4%

1 / 3

Used (2024) Audi Q3 Sportback S-Line 150 HP | Good price

- 35 TDI S Line 5dr Tronic

2024
10,411 miles
Trim level: S-Line
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 150 g CO2/km comb.
mpg: 5.7
Details

Good price

£30,812

£32,184

LE12 7AT Mountsorrel, Leicestershire

Availability verified

-9%

1 / 4

Used (2019) Audi Q2 Sport 116 HP | Good price

DIESEL ESTATE 30 TDI Sport 5dr

2019
65,170 miles
Trim level: Sport
1.6L Diesel
SUV
Manual
116 HP (85 kW)
CO2 emissions: 150 g CO2/km comb.
mpg: 60.1
Details

Good price

£10,999

£12,199

CW7 Cheshire West And Chester, Cheshire

Availability verified

-4%

1 / 3

Used (2018) Audi Q3 S-Line 184 HP | Super price

- 2.0 TDI [184] Quattro S Line

2018
32,627 miles
Trim level: S-Line
2.0L Diesel
SUV
Automatic
184 HP (135 kW)
CO2 emissions: 139 g CO2/km comb.
mpg: 5.3
Details

Super price

£17,265

£18,087

Rainham, London

Availability verified

-3%

1 / 3

Used (2024) Audi A5 Sportback S-Line 163 HP | Super price

- 35 TDI S Line 5dr Tronic

2024
19,558 miles
Trim level: S-Line
2.0L Diesel
Hatchback
Automatic
163 HP (119 kW)
CO2 emissions: 137 g CO2/km comb.
mpg: 5.2
Details

Super price

£22,850

£23,650

N11 1GN Greater London, London

Availability verified

-5%

1 / 3

Used (2019) Audi Q2 Sport 150 HP | Good price

- 35 TDI Quattro Sport 5dr S

2019
68,431 miles
Trim level: Sport
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 155 g CO2/km comb.
mpg: 5.9
Details

Good price

£13,150

£13,850

WD3 3RT Croxley Green, Hertfordshire

Availability verified

-7%

1 / 2

Used (2019) Audi Q7 S-Line 231 HP | Good price

3.0 TDI V6 45 S line SUV 5dr

2019
82,240 miles
Trim level: S-Line
3.0L Diesel
SUV
Automatic
231 HP (169 kW)
CO2 emissions: 178 g CO2/km comb.
mpg: 32.1
Details

Good price

£23,495

£25,495

WV10 0AE West Midlands, West Midlands

Availability verified

-2%

1 / 4

Used (2023) Audi Q3 S-Line 150 HP | Super price

- 35 TDI S Line 5dr Tronic

2023
54,290 miles
Trim level: S-Line
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 140 g CO2/km comb.
mpg: 5.3
Details

Super price

£19,325

£19,795

CA11 9BF Westmorland And Furness, Cumbria

Availability verified

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Used Audi A6 Sport 204 HP (150 kW) 2021 Estate

(2021) Audi A6 Sport 204 HP

Good price

You save £2,303

S70 5SZ Birdwell, South Yorkshire

148 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

Carwow

Used Audi Q7 S-Line 272 HP (200 kW) 2018 SUV

(2018) Audi Q7 S-Line 272 HP

Super price

You save £4,100

CM9 4LL Heybridge, Essex

158 g CO2/km comb. - 272 HP (200 kW) - 6.0 Mpg

Carwow

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

(2024) Audi A3 Sportback S-Line 150 HP

Fair price

N11 1GN Greater London, London

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

Carwow

Used Audi A5 Cabriolet S-Line 190 HP (139 kW) 2019 Grey Cabriolet

(2019) Audi A5 Cabriolet S-Line 190 HP

Fair price

S80 2QD Nottinghamshire, Nottinghamshire

157 g CO2/km comb. - 190 HP (139 kW) - 6.0 Mpg

-7%

1 / 3

Used (2019) Audi A3 Sport 150 HP | Super price

- Saloon 35 TDI Sport 4dr S

2019
64,836 miles
Trim level: Sport
2.0L Diesel
Sedan
Automatic
150 HP (110 kW)
CO2 emissions: 142 g CO2/km comb.
mpg: 5.4
Details

Super price

£13,232

£14,348

RM13 8RH Greater London, London

Availability verified

-2%

1 / 4

Used (2019) Audi A4 S-Line 190 HP | Good price

DIESEL AVANT 40 TDI Quattro S Line

2019
61,012 miles
Trim level: S-Line
2.0L Diesel
Estate
Automatic
190 HP (139 kW)
CO2 emissions: 140 g CO2/km comb.
mpg: 53.3
Details

Good price

£17,199

£17,599

M417TB Urmston, Manchester

Availability verified

1 / 4

Used (2020) Audi Q2 Sport 116 HP | Good price

- 30 TDI Sport 5dr S Tronic

2020
36,950 miles
Trim level: Sport
1.6L Diesel
SUV
Automatic
116 HP (85 kW)
CO2 emissions: 156 g CO2/km comb.
mpg: 5.9
Details

Good price

£14,799

£14,899

M417TB Urmston, Manchester

Availability verified

-2%

1 / 4

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

- Saloon 35 TDI S Line 4dr

2024
48,331 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
150 HP (110 kW)
CO2 emissions: 124 g CO2/km comb.
mpg: 4.7
Details

Super price

£18,569

£18,961

LU20TB

Availability verified

-4%

1 / 4

Used (2019) Audi Q5 S-Line 190 HP | Good price

- 40 TDI Quattro S Line 5dr

2019
42,033 miles
Trim level: S-Line
2.0L Diesel
SUV
Automatic
190 HP (139 kW)
CO2 emissions: 194 g CO2/km comb.
mpg: 7.3
Details

Good price

£20,750

£21,650

WD3 3RT Croxley Green, Hertfordshire

Availability verified

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Used Audi A3 Sport 150 HP (110 kW) 2023 White Sedan

(2023) Audi A3 Sport 150 HP

Fair price

PR2 2DF Lancashire, Lancashire

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

Carwow

Used Audi A3 Sportback Sport 150 HP (110 kW) 2024 Hatchback

(2024) Audi A3 Sportback Sport 150 HP

Good price

You save £1,900

WD3 3RT Croxley Green, Hertfordshire

122 g CO2/km comb. - 150 HP (110 kW) - 4.7 Mpg

Carwow

Used Audi A7 Sportback S-Line 286 HP (210 kW) 2021 Hatchback

(2021) Audi A7 Sportback S-Line 286 HP

Super price

You save £4,501

M417TB Urmston, Manchester

187 g CO2/km comb. - 286 HP (210 kW) - 7.1 Mpg

Carwow

Used Audi Q3 S-Line 150 HP (110 kW) 2023 SUV

(2023) Audi Q3 S-Line 150 HP

Super price

You save £3,375

CA11 9BF Westmorland And Furness, Cumbria

140 g CO2/km comb. - 150 HP (110 kW) - 5.3 Mpg

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