Audi A4 (S-Line) • 19 cars with analysis

Market overview: Market price for Audi A4 (S-Line): The average price is £22,441, ranging from £11,495 to £31,491. Among 19 cars with the S-Line trim, AutoUncle identified 5 good deals listed below market value.

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S-Line

(2025) Audi A4 S-Line 163 HP

£22,595

Good price

You save £2,605

BR3 6QJ Beckenham, London

137 g CO2/km comb. - 163 HP (119 kW) - 5.2 Mpg

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S-Line

(2025) Audi A4 S-Line 163 HP

£21,686

Super price

You save £2,814

E6 5LU Greater London, London

137 g CO2/km comb. - 163 HP (119 kW) - 5.2 Mpg

Carwow

S-Line

(2019) Audi A4 S-Line 190 HP

£17,864

Good price

You save £1,536

RM13 8RH Greater London, London

121 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

S-Line

(2017) Audi A4 S-Line 190 HP

£12,995

Fair price

You save £805

IG11 0RJ Greater London, London

112 g CO2/km comb. - 190 HP (139 kW) - 65.0 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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1 / 3

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

-35 TDI S Line 4dr Tronic

Year: 2025
Km: 26,233 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
CO2 emissions: 137 g CO2/km comb.
mpg: 5.2
Details

Super price

£21,686

£23,751

E6 5LU Greater London, London

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-3%

1 / 3

Used (2025) Audi A4 S-Line 163 HP

- Avant 35 TDI S Line 5dr

Year: 2025
Km: 86,574 miles
Trim level: S-Line
Fuel: Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
CO2 emissions: 142 g CO2/km comb.
mpg: 5.4
Details

£17,670

£18,364

Not evaluated

E6 5LU Greater London, London

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Availability verified

-4%

1 / 4

Used (2022) Audi A4 S-Line 161 HP | Good price

35 TDI S Line 4dr S Tronic

Year: 2022
Km: 28,585 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 161 HP (118 kW)
Details

Good price

£22,666

£23,777

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-1%

1 / 4

Used (2019) Audi A4 S-Line 187 HP | Good price

Avant 40 TDI S Line 5dr S

Year: 2019
Km: 45,132 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 187 HP (137 kW)
Details

Good price

£18,698

£18,999

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(2023) Audi A4 163 HP

£14,862

Super price

You save £2,638

E6 5LU Greater London, London

125 g CO2/km comb. - 163 HP (119 kW) - 4.8 Mpg

Carwow

Black Edition

(2018) Audi A4 Black Edition 190 HP

£13,995

Fair price

You save £5

IG11 0RJ Greater London, London

121 g CO2/km comb. - 190 HP (139 kW) - 61.0 Mpg

Carwow

S-Line

(2018) Audi A6 S-Line 190 HP

£17,707

Fair price

You save £93

RM13 8RH Greater London, London

118 g CO2/km comb. - 190 HP (139 kW) - 4.5 Mpg

Carwow

S-Line

(2018) Audi A6 S-Line 190 HP

£10,988

Good price

You save £1,012

HA0 1TX Greater London, London

114 g CO2/km comb. - 190 HP (139 kW) - 4.4 Mpg

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Used (2016) Audi A4 S-Line 150 HP | Good price

2.0 TDI S Line 4dr

Year: 2016
Km: 36,322 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 150 HP (110 kW)
mpg: 70
Details

Good price

£12,795

£12,995

Parkers.co.uk

WC1E 7DP Greater London, London

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-5%

1 / 4

Used (2023) Audi A4 S-Line 161 HP | Good price

35 TDI S Line 4dr S Tronic

Year: 2023
Km: 34,250 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 161 HP (118 kW)
Details

Good price

£22,790

£23,990

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-6%

1 / 4

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

Avant 35 TDI S Line 5dr S

Year: Oct 2022
Km: 42,596 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
CO2 emissions: 142 g CO2/km comb.
Details

Fair price

£22,250

£23,750

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1 / 4

Used (2021) Audi A4 S-Line 163 HP | Fair price

Saloon (2021/71)S Line 35 TDI

Year: 2021
Km: 28,683 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
mpg: 52.3
Details

Fair price

£22,237

£22,000

Motors.co.uk

WC1E 7DP Greater London, London

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-26%

1 / 4

Used (2021) Audi A4 S-Line 163 HP | Fair price

35 Tdi S Line 4Dr S Tronic 2.0

Year: Dec 2021
Km: 40,500 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
CO2 emissions: 137 g CO2/km comb.
mpg: 54.3
Details

Fair price

£21,159

£28,599

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Used (2023) Audi A4 S-Line 163 HP | Fair price

Avant 2.0 TDI 35 S line S Tronic

Year: 2023
Km: 26,718 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
mpg: 50.4
Details

Fair price

£26,650

Honestjohn

WC1E 7DP Greater London, London

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M Sport

(2018) BMW 520 M Sport 190 HP

£20,557

Fair price

Estimated price £19,597

RM13 8RH Greater London, London

169 g CO2/km comb. - 190 HP (139 kW) - 6.1 Mpg

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Black Edition

(2021) Audi A6 Black Edition 204 HP

£25,150

Fair price

You save £50

N11 1GN Greater London, London

152 g CO2/km comb. - 204 HP (150 kW) - 5.8 Mpg

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M Sport

(2018) BMW 520 M Sport 190 HP

£19,100

Fair price

You save £100

N11 1GN Greater London, London

160 g CO2/km comb. - 190 HP (139 kW) - 5.7 Mpg

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M Sport

(2022) BMW 320 M Sport 190 HP

£21,401

Super price

You save £3,999

E6 5LU Greater London, London

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

1 / 4

Used (2023) Audi A4 S-Line 161 HP | Fair price

Avant 35 TDI S Line 5dr S

Year: 2023
Km: 25,924 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 161 HP (118 kW)
Details

Fair price

£27,295

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1 / 4

Used (2023) Audi A4 S-Line 161 HP | Fair price

Avant 35 TDI S Line 5dr S

Year: 2023
Km: 27,422 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 161 HP (118 kW)
Details

Fair price

£28,000

Honestjohn

WC1E 7DP Greater London, London

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-3%

Used (2023) Audi A4 S-Line 161 HP | Fair price

Avant 35 TDI S Line 5dr S

Year: 2023
Km: 31,414 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 161 HP (118 kW)
Details

Fair price

£25,559

£26,610

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1 / 4

Used (2022) Audi A4 S-Line 161 HP | Fair price

35 TDI S Line 4dr S Tronic

Year: 2022
Km: 37,326 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 161 HP (118 kW)
Details

Fair price

£22,500

Honestjohn

WC1E 7DP Greater London, London

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-2%

1 / 4

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

SALOON 35 TDI S Line 4dr Troni

Year: 2022
Km: 49,293 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
Details

Fair price

£20,390

£20,999

Honestjohn

WC1E 7DP Greater London, London

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1 / 4

Used (2023) Audi A4 S-Line 163 HP | A bit pricey

35 TDI S Line 5dr S Tronic

Year: 2023
Km: 22,849 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
mpg: 50.4
Details

A bit pricey

£28,267

£36,991

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New

Used (2016) Audi A4 S-Line 147 HP | A bit pricey

Avant 2.0 TDI S Line 5dr

Year: 2016
Km: 75,967 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Estate
Gearbox: Manual
Horsepower: 147 HP (108 kW)
Details

A bit pricey

£11,495

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

S line 35 TDI 163 PS S tronic

Year: 2024
Km: 6,282 miles
Trim level: S-Line
Fuel: 2.0L Diesel
Body: Sedan
Gearbox: Automatic
Horsepower: 163 HP (119 kW)
mpg: 52.3
Details

Expensive

£31,491

Honestjohn

WC1E 7DP Greater London, London

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Used (2017) Audi A4 S-Line 267 HP

3.0 TDI 272 Quattro S Line 5dr Tip

Year: 2017
Km: 39,875 miles
Trim level: S-Line
Fuel: 3.0L Diesel
Body: Estate
Gearbox: Automatic
Horsepower: 267 HP (196 kW)
Details

£22,790

£23,990

Not evaluated

Motors.co.uk

WC1E 7DP Greater London, London

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M Sport

(2019) BMW 320 M Sport 190 HP

£17,300

Super price

You save £3,900

N11 1GN Greater London, London

177 g CO2/km comb. - 190 HP (139 kW) - 6.1 Mpg

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M Sport

(2023) BMW 520 M Sport 190 HP

£34,084

Fair price

You save £416

WC1E 7DP Greater London, London

135 g CO2/km comb. - 190 HP (139 kW) - 51.4 Mpg

Carwow

M Sport

(2018) BMW 520 M Sport 190 HP

£18,495

Fair price

Estimated price £18,438

E6 7FB Greater London, London

160 g CO2/km comb. - 190 HP (139 kW) - 5.7 Mpg

Carwow

M Sport

(2018) BMW 520 M Sport 190 HP

£17,435

Fair price

Estimated price £17,368

RM13 8RH Greater London, London

169 g CO2/km comb. - 190 HP (139 kW) - 6.1 Mpg

Showing 1 - 19 of 19 results

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Audi A4 (1000+)