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Audi A6 Valuation: 1,524 used car listings analysed

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Used Audi A6 Sport 204 HP (150 kW) 2021 Grey Sedan

(2021) Audi A6 Sport 204 HP

£19,049

Good price

You save £1,251

G32 9QA Glasgow City, Glasgow

163 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

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Used Audi A6 Sport 204 HP (150 kW) 2023 Black Estate

(2023) Audi A6 Sport 204 HP

£23,990

Good price

You save £2,210

MK15 0DQ Milton Keynes, Buckinghamshire

167 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

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Used Audi A6 S-Line 204 HP (150 kW) 2019 Grey Sedan

(2019) Audi A6 S-Line 204 HP

£18,290

Fair price

Estimated price £17,835

WF2 7AW West Yorkshire, West Yorkshire

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

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Used Audi A6 Sport 204 HP (150 kW) 2022 Black Sedan

(2022) Audi A6 Sport 204 HP

£18,499

Super price

You save £3,101

S9 1XZ Park, South Yorkshire

163 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

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-3%

1 / 4

Used (2019) Audi A6 S-Line 204 HP | Expensive

S Line 50 Tdi Quattro Semi-auto

2019
63,357 miles
Trim level: S-Line
2.0L Diesel
Estate
Automatic
204 HP (150 kW)
Details

Expensive

£23,700

£24,500

Exchange and Mart

Wiltshire, Wiltshire

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1 / 1

Used (2016) Audi A6 Black Edition 190 HP | Expensive

Avant 2.0 TDI ultra Black Edition

Apr 2016
41,639 miles
Trim level: Black Edition
2.0L Diesel
Estate
Automatic
190 HP (139 kW)
CO2 emissions: 121 g CO2/km comb.
4.6 mpg
Details

Expensive

£18,250

Dealer

Hailsham, East Sussex

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-18%

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Used (2026) Audi A6 S-Line 204 HP | Expensive

SALOON Edition 1 TFSI 204 PS S

2026
4,765 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
6.8 mpg
Details

Expensive

£40,120

£49,490

Dealer

CT2 7BE Kent, Kent

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-2%

1 / 1

Used (2026) Audi A6 Advanced 204 HP | Expensive

2.0 Tdi Edition 1 Saloon 4Dr

2026
2,895 miles
Trim level: Advanced
2.0L Diesel
Sedan
Automatic
204 HP (150 kW)
5.1 mpg
Details

Expensive

£44,281

£45,352

Dealer

GU1 1RU Surrey, Surrey

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Used Audi A6 Sport 204 HP (150 kW) 2022 Black Estate

(2022) Audi A6 Sport 204 HP

£20,499

Super price

You save £3,001

SO15 0LP Southampton, Hampshire

167 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

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Used Audi A6 Sport 204 HP (150 kW) 2023 Blue Estate

(2023) Audi A6 Sport 204 HP

£21,399

Super price

You save £4,101

DE216BZ Derby, Derbyshire

167 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

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

(2020) Audi A6 S-Line 204 HP

£18,295

Fair price

Estimated price £18,175

WF2 9RY West Yorkshire, West Yorkshire

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

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Used Audi A6 Black Edition 204 HP (150 kW) 2022 Black Estate

(2022) Audi A6 Black Edition 204 HP

£23,800

Fair price

Estimated price £22,668

WD3 3RT Croxley Green, Hertfordshire

175 g CO2/km comb. - 204 HP (150 kW) - 7.7 Mpg

1 / 1

Used (2018) Audi A6 S-Line 204 HP | Expensive

40 TDI S Line 4dr S Tronic

2018
45,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
204 HP (150 kW)
4.4 mpg
Details

Expensive

£20,395

Dealer

London, London

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-2%

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Used (2026) Audi A6 S-Line 299 HP | Expensive

Avant 2.0 e-hybrid 25.9kWh S line

Jul 2026
2,988 miles
Trim level: S-Line
2.0L Electric/Petrol
Estate
Automatic
299 HP (219 kW)
CO2 emissions: 54 g CO2/km comb.
2.2 mpg
Details

Expensive

£43,795

£44,995

Dealer

London, London

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-26%

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Used (2026) Audi A6 S-Line 204 HP | Expensive

A6 SALOON 2.0 TFSI 204 Edition 1

2026
6,444 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
6.8 mpg
Details

Expensive

£39,795

£54,495

Dealer

TA1 2BB Somerset, Somerset

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1 / 4

New (2026) Audi A6 S-Line 204 HP | Expensive

A6 AVANT 2.0 TDI Quattro 204

2026
10 miles
Trim level: S-Line
2.0L Diesel
Estate
Automatic
204 HP (150 kW)
Details

Expensive

£48,990

Dealer

CR5 2AR Greater London, London

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1 / 1

Used (2019) Audi A6 S-Line | Expensive

40 TDI S Line 5dr S Tronic

2019
67,000 miles
Trim level: S-Line
2.0L Diesel
Estate
Automatic
Details

Expensive

£19,950

Dealer

London, London

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1 / 1

New (2026) Audi A6 S-Line 204 HP | Expensive

Saloon 2.0 TFSI S line Saloon 4dr

2026
1,000 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
7.1 mpg
Details

Expensive

£39,000

Dealer

London, London

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

(2021) Audi A6 S-Line 204 HP

£21,347

Fair price

Estimated price £20,846

PE296WP Huntingdon, Cambridgeshire

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

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Used Audi A6 Sport 204 HP (150 kW) 2022 Grey Sedan

(2022) Audi A6 Sport 204 HP

£19,995

Fair price

You save £705

CO5 7JH Rowhedge, Essex

162 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

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Used Audi A6 S-Line 204 HP (150 kW) 2023 Estate

(2023) Audi A6 S-Line 204 HP

£23,772

Fair price

You save £1,228

PE45BH Huntingdon, Cambridgeshire

169 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

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

(2021) Audi A6 Sport 204 HP

£24,350

Fair price

You save £650

B78 3JF Staffordshire, Staffordshire

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

1 / 1

Used (2019) Audi A6 Sport 204 HP | Expensive

40 TDI Sport 4dr S Tronic

2019
98,362 miles
Trim level: Sport
2.0L Diesel
Sedan
Automatic
204 HP (150 kW)
Details

Expensive

£12,995

Dealer

London, London

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1 / 4

Used (2021) Audi A6 Black Edition | Expensive

Black Edition 40 Tfsi Mhev

2021
95,647 miles
Trim level: Black Edition
2.0L Petrol
Sedan
Automatic
Details

Expensive

£15,663

£14,643

Exchange and Mart

Leicestershire, Leicestershire

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Used (2026) Audi A6 S-Line 204 HP | Expensive

Saloon 2.0 TFSI S line Saloon 4dr

Jun 2026
2,391 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Expensive

£38,990

£42,970

Dealer

N20 0PT Greater London, London

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1 / 1

Used (2013) Audi A6 S-Line | Expensive

2.0 TDI S Line 4dr

2013
106,700 miles
Trim level: S-Line
2.0L Diesel
Sedan
Manual
CO2 emissions: 132 g CO2/km comb.
5 mpg
Details

Expensive

£6,749

Dealer

London, London

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1 / 1

Used (2025) Audi A6 S-Line | Expensive

Saloon 2.0 TFSI 204 S line 4dr S

2025
8,073 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
6.8 mpg
Details

Expensive

£34,485

Dealer

London, London

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1 / 1

Used (2018) Audi A6 S-Line | Expensive

Saloon 2.0 TDI 40 S line S Tronic

2018
48,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
4.4 mpg
Details

Expensive

£17,495

Dealer

London, London

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Used (2018) Audi A6 S-Line | Expensive

40 TDI S Line 4dr S Tronic

2018
62,905 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
4.4 mpg
Details

Expensive

£17,950

Dealer

London, London

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1 / 1

Used (2011) Audi A6 S-Line | Expensive

2.0 TDI S Line 4dr

2011
130,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Manual
Details

Expensive

£4,995

Dealer

London, London

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1 / 1

Used (2018) Audi A6 Black Edition | Expensive

2.0 TDI Ultra Black Edition 5dr S

2018
96,000 miles
Trim level: Black Edition
2.0L Diesel
Estate
Automatic
4.4 mpg
Details

Expensive

£15,995

Dealer

London, London

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1 / 1

Used (2013) Audi A6 Black Edition | Expensive

2.0 TDI S Line Black Edition

2013
125,000 miles
Trim level: Black Edition
2.0L Diesel
Estate
Manual
CO2 emissions: 132 g CO2/km comb.
5 mpg
Details

Expensive

£8,499

Dealer

London, London

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

(2021) Audi A6 S-Line 204 HP

£21,450

Good price

You save £1,850

SG5 1RQ Hertfordshire, Hertfordshire

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

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(2022) Audi A6 Sport 204 HP

£20,330

Super price

You save £3,870

PE1 5XL Peterborough, Cambridgeshire

163 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

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

(2021) Audi A6 Black Edition 204 HP

£23,799

Fair price

You save £301

PE32 1DD Pott Row, Norfolk

154 g CO2/km comb. - 204 HP (150 kW) - 5.9 Mpg

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Used Audi A6 Sport 204 HP (150 kW) 2023 Grey Sedan

(2023) Audi A6 Sport 204 HP

£22,850

Fair price

You save £950

L5 9XN Merseyside, Merseyside

162 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

1 / 1

Used (2016) Audi A6 S-Line 190 HP | Expensive

2.0 TDI Quattro S Line 4dr S

2016
157,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
190 HP (139 kW)
5.1 mpg
Details

Expensive

£8,495

Dealer

London, London

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1 / 1

Used (2019) Audi A6 S-Line | Expensive

Saloon 2.0 TDI 40 S line S Tronic

2019
106,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Automatic
Details

Expensive

£13,749

Dealer

London, London

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1 / 1

Used (2018) Audi A6 Black Edition | Expensive

3.0 BiTDI [320] Quattro Black

2018
59,000 miles
Trim level: Black Edition
3.0L Diesel
Sedan
Automatic
Details

Expensive

£19,995

Dealer

London, London

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1 / 1

Used (2014) Audi A6 S-Line | Expensive

2.0 TDI Ultra S Line 4dr Euro

2014
169,000 miles
Trim level: S-Line
2.0L Diesel
Sedan
Manual
Details

Expensive

£4,350

Dealer

London, London

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1 / 1

Used (2023) Audi A6 Black Edition | Expensive

50 TFSI e 17.9kWh Quattro Black

2023
28,000 miles
Trim level: Black Edition
2.0L Electric/Petrol
Sedan
Manual
Details

Expensive

£31,995

Dealer

London, London

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

(2021) Audi A6 S-Line 204 HP

£21,399

Fair price

You save £1,201

CW73AL Cheshire West And Chester, Cheshire

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

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(2023) Audi A6 Sport 204 HP

£22,599

Super price

You save £3,701

M126LP Manchester, Manchester

167 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

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Used Audi A6 Black Edition 204 HP (150 kW) 2020 Silver Sedan

(2020) Audi A6 Black Edition 204 HP

£19,999

Fair price

Estimated price £18,899

M417TB Urmston, Manchester

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

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Used Ford Ka Studio 70 HP (51 kW) 2007 Mauve/purple Hatchback

(2007) Ford Ka Studio 70 HP

£750

Good price

You save £250

TN15 6JD West Kingsdown, Kent

147 g CO2/km comb. - 70 HP (51 kW) - 45.0 Mpg

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