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(S-Line) Audi A4 used • 799 cars with price check

Market overview: Market price for Audi A4 (S-Line): The average price is £16,902, ranging from £4,200 to £28,694. Out of 799 cars for sale with the S-Line trim, AutoUncle has identified 133 deals currently listed below market value.

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-3%
1 / 4

Used (2019) Audi A4 S-Line 150 HP | Good price

2.0 TFSI 35 S line Saloon 4dr

  • 2019
  • 35,138 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 150 HP (110 kW)
  • mpg: 38.2
  • CO2: 135 g CO2/km comb.
  • Details
autouncle-certified

Good price

£16,750
£17,300
DE655FJ Hilton, Derbyshire
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-13%
1 / 4

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

DIESEL SALOON 35 TDI S Line 4dr S

  • 2019
  • 38,570 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 190 HP (139 kW)
  • mpg: 61.4
  • CO2: 120 g CO2/km comb.
  • Details
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Super price

£16,099
£18,599
CW73AL, Cheshire
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-5%
1 / 4

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

-35 TDI S Line 4dr Tronic

  • 2025
  • 22,262 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 163 HP (119 kW)
  • mpg: 5.2
  • CO2: 137 g CO2/km comb.
  • Details
autouncle-certified

Super price

£22,235
£23,538
PE45BH Huntingdon, Cambridgeshire
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-8%
1 / 4

Used (2019) Audi A4 S-Line 150 HP | Good price

AVANT 2.0 TFSI 35 S line Estate

  • 2019
  • 35,393 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Estate
  • Manual
  • 150 HP (110 kW)
  • mpg: 37.7
  • CO2: 139 g CO2/km comb.
  • Details
autouncle-certified

Good price

£16,750
£18,300
DE655FJ Hilton, Derbyshire
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1 / 4

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

-Avant 35 TDI S Line 5dr Troni

  • 2025
  • 111,589 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 163 HP (119 kW)
  • mpg: 5.4
  • CO2: 142 g CO2/km comb.
  • Details
autouncle-certified

Super price

£14,995
SO302FU Southampton Hampshire, Hampshire
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-5%
1 / 4

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

-35 TDI S Line 4dr Tronic

  • 2025
  • 20,687 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 163 HP (119 kW)
  • mpg: 5.2
  • CO2: 137 g CO2/km comb.
  • Details
autouncle-certified

Super price

£22,699
£23,899
M417TB, Manchester
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-7%
1 / 4

Used (2019) Audi A4 S-Line 150 HP | Super price

35 TDI S Line 5dr S Tronic

  • 2019
  • 53,226 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 150 HP (110 kW)
  • mpg: 45.6
  • CO2: 121 g CO2/km comb.
  • Details
autouncle-certified

Super price

£16,450
£17,800
DE655FJ Hilton, Derbyshire
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-3%
1 / 2

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

- 2.0T FSI S Line 4dr

  • 2017
  • 76,433 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Sedan
  • Manual
  • 190 HP (139 kW)
  • mpg: 5.7
  • CO2: 130 g CO2/km comb.
  • Details
autouncle-certified

Super price

£9,577
£9,888
BL82AL, Manchester
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-5%
1 / 4

Used (2019) Audi A4 S-Line 150 HP | Good price

2.0 TFSI 35 S line Saloon 4dr

  • 2019
  • 60,702 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 150 HP (110 kW)
  • mpg: 38.2
  • CO2: 135 g CO2/km comb.
  • Details
autouncle-certified

Good price

£14,250
£15,000
DE655FJ Hilton, Derbyshire
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-8%
1 / 4

Used (2021) Audi A4 S-Line 150 HP | Super price

-35 TFSI S Line 4dr

  • 2021
  • 13,782 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 150 HP (110 kW)
  • mpg: 6.6
  • CO2: 152 g CO2/km comb.
  • Details
autouncle-certified

Super price

£17,249
£18,799
WF105HX Castleford, West Yorkshire
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-6%
1 / 4

Used (2020) Audi A4 S-Line 136 HP | Good price

Avant 2020 | 2.0 TDI 30 S line S

  • 2020
  • 62,073 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 136 HP (100 kW)
  • mpg: 5.3
  • CO2: 140 g CO2/km comb.
  • Details
autouncle-certified

Good price

£17,700
£19,000
WS111SL, Staffordshire
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-14%
1 / 4

Used (2019) Audi A4 S-Line 245 HP | Good price

45 TFSI Quattro S Line 5dr S

  • 2019
  • 73,000 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Estate
  • Automatic
  • 245 HP (180 kW)
  • mpg: 34.9
  • CO2: 180 g CO2/km comb.
  • Details
autouncle-certified

Good price

£16,900
£19,700
CM94LL, Essex
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1 / 2

Used (2018) Audi A4 S-Line 190 HP | Good price

- Avant 2.0T FSI S Line 5dr Tronic

  • 2018
  • 85,027 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Estate
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.7
  • CO2: 130 g CO2/km comb.
  • Details
autouncle-certified

Good price

£12,490
B650LP, West Midlands
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1 / 4

Used (2019) Audi A4 S-Line 150 HP | Good price

- Avant 35 TFSI S Line 5dr

  • 2019
  • 53,780 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Estate
  • Automatic
  • 150 HP (110 kW)
  • mpg: 7.3
  • CO2: 137 g CO2/km comb.
  • Details
autouncle-certified

Good price

£16,999
OX264EL, Oxfordshire
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-5%
1 / 3

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

-35 TDI S Line 4dr Tronic

  • 2025
  • 26,233 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 163 HP (119 kW)
  • mpg: 5.2
  • CO2: 137 g CO2/km comb.
  • Details
autouncle-certified

Super price

£22,348
£23,751
E65LU, London
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1 / 4

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

2.0 TDI ultra S line Saloon 4dr

  • 2017
  • 62,694 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Manual
  • 190 HP (139 kW)
  • mpg: 4.4
  • CO2: 113 g CO2/km comb.
  • Details
autouncle-certified

Good price

£11,950
£12,050
DE655FJ Hilton, Derbyshire
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1 / 3

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

- Avant 2.0 TDI 190 S Line 5dr

  • 2017
  • 95,000 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Estate
  • Manual
  • 190 HP (139 kW)
  • mpg: 4.5
  • CO2: 116 g CO2/km comb.
  • Details
autouncle-certified

Good price

£10,990
PE216QX, Lincolnshire
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1 / 4

Used (2016) Audi A4 S-Line 190 HP | Good price

TDI S LINE-SAT NAVIGATION-DAB

  • 2016
  • 71,238 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Manual
  • 190 HP (139 kW)
  • mpg: 64
  • CO2: 113 g CO2/km comb.
  • Details
autouncle-certified

Good price

£10,499
CW57NB, Cheshire
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-4%
1 / 4

Used (2025) Audi A4 S-Line 204 HP | Good price

-Avant 40 TDI 204 Quattro S Line

  • 2025
  • 23,630 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg: 6
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Good price

£29,200
£30,700
CM13BH Chelmsford, Essex
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-1%
1 / 4

Used (2019) Audi A4 S-Line 150 HP | Good price

2019 | 2.0 TDI 35 S line S Tronic

  • 2019
  • 58,779 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 150 HP (110 kW)
  • mpg: 5.8
  • CO2: 120 g CO2/km comb.
  • Details
autouncle-certified

Good price

£15,400
£15,700
NR32AW, Norfolk
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-1%
1 / 4

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

-35 TDI S Line 4dr Tronic

  • 2025
  • 35,994 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 163 HP (119 kW)
  • mpg: 5.2
  • CO2: 137 g CO2/km comb.
  • Details
autouncle-certified

Super price

£19,795
£20,000
DH33EJ, Durham
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-1%
1 / 4

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

- 35 TDI S Line 4dr Tronic

  • 2025
  • 20,301 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 163 HP (119 kW)
  • mpg: 5.2
  • CO2: 137 g CO2/km comb.
  • Details
autouncle-certified

Super price

£22,995
£23,395
BR35JS Bromley, London
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-2%
1 / 4

Used (2025) Audi A4 S-Line 204 HP | Super price

-40 TDI 204 Quattro S Line 4dr

  • 2025
  • 94,054 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg: 5.8
  • CO2: 151 g CO2/km comb.
  • Details
autouncle-certified

Super price

£17,990
£18,490
S93NH Sheffield, South Yorkshire
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-1%
1 / 4

Used (2022) Audi A4 S-Line 163 HP | Good price

2.0 TDI 35 S line S Tronic Euro 6

  • 2022
  • 39,642 miles
  • Trim level: S-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 163 HP (119 kW)
  • CO2: 142 g CO2/km comb.
  • Details
autouncle-certified

Good price

£22,485
£22,748
Dealer
WF4 3BB Wakefield, West Yorkshire
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-3%
1 / 4

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

40 TFSI 204 S Line 4dr S Troni

  • 2024
  • 26,439 miles
  • Trim level: S-Line
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • Details
autouncle-certified

Good price

£24,600
£25,500
Dealer
WC1E 7DP London, London
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Showing 1 - 25 of 771 results
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Good price

Fair price

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Expensive