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Audi A4 (diesel) • 916 cars with Valuation

Market overview: Diesel Audi A4 (September-2026): There are currently 916 used diesel Audi A4 cars for sale. Prices range from £2,995 to £23,348, with a median price of £10,890. AutoUncle has identified 197 cars as being offered below market price. The typical selling time for a diesel Audi A4 is approximately 27 days, and 42.7% of the listings have recently been reduced in price (Source: AutoUncle market data, September-2026).

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Used Audi A4 S-Line 150 HP (110 kW) 2016 Grey Sedan

(2016) Audi A4 S-Line 150 HP

Fair price

TS6 6UR Redcar And Cleveland, North Yorkshire

109 g CO2/km comb. - 150 HP (110 kW) - 4.2 Mpg

Carwow

Used Audi A4 150 HP (110 kW) 2018 White Estate

(2018) Audi A4 150 HP

Super price

You save £2,050

NE28 9ND Wallsend, Tyne And Wear

104 g CO2/km comb. - 150 HP (110 kW) - 4.0 Mpg

Carwow

Used Audi A4 S-Line 218 HP (160 kW) 2016 Black Sedan

(2016) Audi A4 S-Line 218 HP

Super price

You save £2,400

CV7 9FU Exhall, Warwickshire

114 g CO2/km comb. - 218 HP (160 kW) - 4.4 Mpg

Carwow

Used Audi A4 Sport 150 HP (110 kW) 2016 Black Sedan

(2016) Audi A4 Sport 150 HP

Fair price

UB9 4DN Denham, Buckinghamshire

101 g CO2/km comb. - 150 HP (110 kW) - 3.9 Mpg

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Used (2024) Audi A4 S-Line 204 HP | Good price

Avant 2024 S Line 40 TDI 204

2024
27,720 miles
Trim level: S-Line
2.0L Diesel
Estate
Automatic
204 HP (150 kW)
CO2 emissions: 156 g CO2/km comb.
6 mpg
Details

Good price

£25,232

£25,504

BS2 0SP Bristol City, Bristol

Availability verified

-10%

1 / 4

Used (2016) Audi A4 Sport 190 HP | Good price

2016 Sport 2.0 TDI Ultra 190 S

2016
103,000 miles
Trim level: Sport
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
CO2 emissions: 103 g CO2/km comb.
4 mpg
Details

Good price

£8,495

£9,495

FK2 7BQ Falkirk, Stirling And Falkirk

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

35 TDI Technik 4dr S Tronic

2023
61,715 miles
Trim level: Comfort
2.0L Diesel
Sedan
Automatic
163 HP (119 kW)
CO2 emissions: 125 g CO2/km comb.
4.8 mpg
Details

Super price

£16,100

RM13 8RH Greater London, London

Availability verified

-8%

1 / 4

Used (2019) Audi A4 Sport 190 HP | Super price

2019 Sport 40 TDI S Tronic

2019
85,000 miles
Trim level: Sport
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
CO2 emissions: 118 g CO2/km comb.
5.5 mpg
Details

Super price

£11,500

£12,500

CM9 4LL Heybridge, Essex

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Used Audi A4 Black Edition 190 HP (139 kW) 2018 Blue Sedan

(2018) Audi A4 Black Edition 190 HP

Good price

You save £1,402

B33 0LD West Midlands, West Midlands

112 g CO2/km comb. - 190 HP (139 kW) - 4.3 Mpg

Carwow

Used Audi A4 Sport 190 HP (139 kW) 2016 Red Sedan

(2016) Audi A4 Sport 190 HP

Good price

You save £1,205

FK2 7BQ Falkirk, Stirling And Falkirk

103 g CO2/km comb. - 190 HP (139 kW) - 4.0 Mpg

Carwow

Used Audi A4 Sport 190 HP (139 kW) 2016 Blue Sedan

(2016) Audi A4 Sport 190 HP

Good price

EH14 2SN Edinburgh, Edinburgh

103 g CO2/km comb. - 190 HP (139 kW) - 4.0 Mpg

Carwow

Used Audi A4 S-Line 150 HP (110 kW) 2017 Silver Estate

(2017) Audi A4 S-Line 150 HP

Fair price

DH4 4NJ Houghton Le Spring, Tyne And Wear

112 g CO2/km comb. - 150 HP (110 kW) - 4.3 Mpg

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

2019 S Line 40 TDI Quattro S

2019
38,790 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
CO2 emissions: 138 g CO2/km comb.
6.1 mpg
Details

Good price

£16,999

SK141HD Greater Manchester, Manchester

Availability verified

-3%

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Used (2019) Audi A4 Comfort 150 HP | Super price

Avant 2.0 TDI 35 SE S Tronic Euro

2019
57,414 miles
Trim level: Comfort
2.0L Diesel
Estate
Automatic
150 HP (110 kW)
CO2 emissions: 115 g CO2/km comb.
5.7 mpg
Details

Super price

£13,440

£13,965

RM13 8RH Greater London, London

Availability verified

-10%

1 / 4

Used (2016) Audi A4 S-Line 218 HP | Super price

Saloon 3.0 TDI S Line 4d S

2016
108,000 miles
Trim level: S-Line
3.0L Diesel
Sedan
Automatic
218 HP (160 kW)
CO2 emissions: 114 g CO2/km comb.
4.4 mpg
Details

Super price

£8,500

£9,500

CV7 9FU Exhall, Warwickshire

Availability verified

-6%

1 / 4

Used (2019) Audi A4 Black Edition 190 HP | Good price

Saloon Black Edition 40 TDI 190PS

2019
62,710 miles
Trim level: Black Edition
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
CO2 emissions: 138 g CO2/km comb.
6.3 mpg
Details

Good price

£15,395

£16,495

CO9 2SX Essex, Essex

Availability verified

-12%

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Used (2024) Audi A4 S-Line 163 HP | Good price

2024 S Line 35 TDI S Tronic

2024
9,276 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
163 HP (119 kW)
CO2 emissions: 137 g CO2/km comb.
5.2 mpg
Details

Good price

£22,949

£26,299

TS18 3RW Stockton-On-Tees, Durham

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1 / 1

Used (2025) Audi A4 S-Line 163 HP | Good price

2025 S Line 35 TDI S Line 4dr S

2025
78,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
163 HP (119 kW)
CO2 emissions: 137 g CO2/km comb.
5.2 mpg
Details

Good price

£16,000

ST59DX

Availability verified

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Used Audi A4 Black Edition 177 HP (130 kW) 2015 Black Sedan

(2015) Audi A4 Black Edition 177 HP

Fair price

PE134AX Fenland, Cambridgeshire

134 g CO2/km comb. - 177 HP (130 kW) - 5.1 Mpg

Carwow

Used Audi A4 Sport 190 HP (139 kW) 2019 Blue Sedan

(2019) Audi A4 Sport 190 HP

Super price

You save £2,300

CM9 4LL Heybridge, Essex

118 g CO2/km comb. - 190 HP (139 kW) - 5.5 Mpg

Carwow

Used Audi A4 Sport 150 HP (110 kW) 2017 Black Sedan

(2017) Audi A4 Sport 150 HP

Good price

You save £1,101

SO18 1BH Southampton, Hampshire

101 g CO2/km comb. - 150 HP (110 kW) - 3.9 Mpg

Carwow

Used Audi A4 S-Line 150 HP (110 kW) 2016 Grey Sedan

(2016) Audi A4 S-Line 150 HP

Fair price

DN36 4RJ Humberston, Lincolnshire

106 g CO2/km comb. - 150 HP (110 kW) - 4.0 Mpg

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Used (2018) Audi A4 Black Edition 190 HP | Good price

2.0 TDI Black Edition Saloon 4dr

2018
97,199 miles
Trim level: Black Edition
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
CO2 emissions: 112 g CO2/km comb.
4.3 mpg
Details

Good price

£10,598

£12,000

B33 0LD West Midlands, West Midlands

Availability verified

-5%

Used (2025) Audi A4 S-Line 163 HP | Good price

2025 S Line 35 TDI S Line 4dr S

2025
43,960 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
163 HP (119 kW)
CO2 emissions: 137 g CO2/km comb.
5.2 mpg
Details

Good price

£19,880

£20,980

WV2 1BL West Midlands, West Midlands

Availability verified

1 / 1

Used (2023) Audi A4 163 HP | Good price

Avant 2023 Technik 35 TDI Technik

2023
28,000 miles
2.0L Diesel
Estate
Automatic
163 HP (119 kW)
CO2 emissions: 129 g CO2/km comb.
4.9 mpg
Details

Good price

£21,000

CA3 0ET Cumberland, Cumbria

Availability verified

-2%

1 / 4

Used (2021) Audi A4 163 HP | Super price

2021 Technik 35 TDI S Tronic

2021
29,448 miles
2.0L Diesel
Sedan
Automatic
163 HP (119 kW)
CO2 emissions: 125 g CO2/km comb.
4.8 mpg
Details

Super price

£17,297

£17,797

WV2 2QE West Midlands, West Midlands

Availability verified

-4%

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Used (2018) Audi A4 150 HP | Good price

2018 SE 2.0 TDI Ultra

2018
37,914 miles
2.0L Diesel
Sedan
Manual
150 HP (110 kW)
CO2 emissions: 99 g CO2/km comb.
3.8 mpg
Details

Good price

£12,900

£13,500

HP19 8BY Buckinghamshire, Buckinghamshire

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1 / 4

Used (2017) Audi A4 Sport 150 HP | Good price

2017 Sport 2.0 TDI Ultra S

2017
114,496 miles
Trim level: Sport
2.0L Diesel
Sedan
Automatic
150 HP (110 kW)
CO2 emissions: 101 g CO2/km comb.
3.9 mpg
Details

Good price

£7,999

SO18 1BH Southampton, Hampshire

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Used (2013) Audi A4 Basis 136 HP | Good price

Saloon 2.0 TDIe Technik (2012)

2013
92,252 miles
Trim level: Basis
2.0L Diesel
Sedan
Manual
136 HP (100 kW)
CO2 emissions: 112 g CO2/km comb.
65 mpg
Details

Good price

£4,995

HP23 4NB Marsworth, Buckinghamshire

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1 / 4

Used (2023) Audi A4 Advanced 163 HP | Good price

35 TDI Technik 5dr S Tronic

2023
93,151 miles
Trim level: Advanced
2.0L Diesel
Estate
Automatic
163 HP (119 kW)
CO2 emissions: 129 g CO2/km comb.
4.9 mpg
Details

Good price

£13,999

PE134AX Fenland, Cambridgeshire

Availability verified

-8%

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Used (2013) Audi A4 136 HP | Good price

Avant 2.0 TDIe SE Technik Euro 5

2013
88,000 miles
2.0L Diesel
Estate
Manual
136 HP (100 kW)
CO2 emissions: 116 g CO2/km comb.
4.4 mpg
Details

Good price

£5,295

£5,795

WF5 9TP Wakefield, West Yorkshire

Availability verified

-2%

1 / 4

Used (2017) Audi A4 S-Line 190 HP | Good price

2017 S Line 2.0 TDI Ultra 190 S

2017
64,704 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
CO2 emissions: 109 g CO2/km comb.
4.2 mpg
Details

Good price

£12,195

£12,495

LU3 3AN Luton, Bedfordshire

Availability verified

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Used Audi A4 Sport 190 HP (139 kW) 2021 White Sedan

(2021) Audi A4 Sport 190 HP

Fair price

CM9 4LL Heybridge, Essex

125 g CO2/km comb. - 190 HP (139 kW) - 57.6 Mpg

Carwow

Used Audi A4 Comfort 136 HP (100 kW) 2019 White Estate

(2019) Audi A4 Comfort 136 HP

Super price

You save £2,710

NE8 3HL Tyne And Wear, Tyne And Wear

127 g CO2/km comb. - 136 HP (100 kW) - 56.5 Mpg

Carwow

Used Audi A4 S-Line 218 HP (160 kW) 2016 Black Estate

(2016) Audi A4 S-Line 218 HP

Fair price

TD9 8PZ Scottish Borders, Roxburghshire

117 g CO2/km comb. - 218 HP (160 kW) - 4.5 Mpg

Carwow

Used Audi A4 S-Line 163 HP (119 kW) 2021 Black Sedan

(2021) Audi A4 S-Line 163 HP

Fair price

Estimated price £13,052

LU3 3AN Luton, Bedfordshire

137 g CO2/km comb. - 163 HP (119 kW) - 52.3 Mpg

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Used (2023) Audi A4 S-Line 204 HP | Good price

Avant 2023 S Line 40 TDI 204

2023
46,730 miles
Trim level: S-Line
2.0L Diesel
Estate
Automatic
204 HP (150 kW)
CO2 emissions: 156 g CO2/km comb.
5.2 mpg
Details

Good price

£21,995

£22,295

WV10 0AE West Midlands, West Midlands

Availability verified

1 / 4

Used (2022) Audi A4 Sport 163 HP | Good price

Avant 2022 Sport Edition 35 TDI S

2022
38,212 miles
Trim level: Sport
2.0L Diesel
Estate
Automatic
163 HP (119 kW)
CO2 emissions: 131 g CO2/km comb.
5 mpg
Details

Good price

£19,920

BB1 3NU Lancashire, Lancashire

Availability verified

-10%

1 / 4

Used (2019) Audi A4 Comfort 136 HP | Super price

Avant 2019 Technik 30 TDI S

2019
55,820 miles
Trim level: Comfort
2.0L Diesel
Estate
Automatic
136 HP (100 kW)
CO2 emissions: 127 g CO2/km comb.
56.5 mpg
Details

Super price

£15,290

£16,990

NE8 3HL Tyne And Wear, Tyne And Wear

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1 / 4

Used (2018) Audi A4 150 HP | Super price

Avant 2018 SE 2.0 TDI Ultra S

2018
64,295 miles
2.0L Diesel
Estate
Automatic
150 HP (110 kW)
CO2 emissions: 104 g CO2/km comb.
4 mpg
Details

Super price

£11,750

NE28 9ND Wallsend, Tyne And Wear

Availability verified

1 / 4

Used (2019) Audi A4 Comfort 163 HP | Good price

A4 2.0 Technik 35 TDI Semi-Auto

2019
57,933 miles
Trim level: Comfort
2.0L Diesel
Sedan
Automatic
163 HP (119 kW)
CO2 emissions: 125 g CO2/km comb.
4.8 mpg
Details

Good price

£14,749

PE134AX Fenland, Cambridgeshire

Availability verified

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Used Audi A4 S-Line 272 HP (200 kW) 2016 White Sedan

(2016) Audi A4 S-Line 272 HP

Fair price

Estimated price £13,940

N11 1GN Greater London, London

134 g CO2/km comb. - 272 HP (200 kW) - 5.1 Mpg

Carwow

Used Audi A4 Black Edition 190 HP (139 kW) 2019 Black Sedan

(2019) Audi A4 Black Edition 190 HP

Good price

You save £1,205

CO9 2SX Essex, Essex

138 g CO2/km comb. - 190 HP (139 kW) - 6.3 Mpg

Carwow

Used Audi A4 Black Edition 190 HP (139 kW) 2018 Grey Sedan

(2018) Audi A4 Black Edition 190 HP

Fair price

Estimated price £14,125

WD19 4HX Hertfordshire, Hertfordshire

121 g CO2/km comb. - 190 HP (139 kW) - 4.6 Mpg

Carwow

Used Audi A4 Advanced 163 HP (119 kW) 2023 Black Estate

(2023) Audi A4 Advanced 163 HP

Good price

You save £1,901

PE134AX Fenland, Cambridgeshire

129 g CO2/km comb. - 163 HP (119 kW) - 4.9 Mpg

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