2018 Audi S4 • Compare 15 used cars with valuation

Market overview: April-2026 Price Analysis: A used Audi S4 from 2018 currently costs between £15,995 and £26,300. On average, the mileage for this year stands at 75,710 miles. The depreciation and price trend over the last 12 months is -£1,980.

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Carwow

2017

(2017) Audi S4 354 HP

£18,990

Fair price

You save £310

North Yorkshire, North Yorkshire

179 g CO2/km comb. - 354 HP (260 kW) - 7.5 Mpg

Carwow

2018

(2018) Audi S4 Design 354 HP

£18,690

Fair price

Estimated price £17,996

RG7 5JF Berkshire, Berkshire

174 g CO2/km comb. - 354 HP (260 kW) - 7.5 Mpg

Carwow

2018

(2018) Audi S4 Comfort 354 HP

£23,949

Fair price

Estimated price £22,973

WD19 4HY Hertfordshire, Hertfordshire

179 g CO2/km comb. - 354 HP (260 kW) - 7.8 Mpg

Carwow

2018

(2018) Audi S4 Design 354 HP

£20,500

Fair price

You save £500

CM23 3LJ Hertfordshire, Hertfordshire

174 g CO2/km comb. - 354 HP (260 kW) - 7.7 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-7%

1 / 2

Used (2018) Audi S4 Design 354 HP | Good price

Avant 3.0 TFSI V6 Estate 5dr

2018
95,315 miles
Trim level: Design
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
CO2 emissions: 179 g CO2/km comb.
7.5 mpg
Details

Good price

£17,777

£19,279

BL8 2AL Greater Manchester, Manchester

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-4%

1 / 4

Used (2018) Audi S4 Design 354 HP | Good price

- Avant Quattro 5dr Tip Tronic

2018
66,643 miles
Trim level: Design
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
CO2 emissions: 179 g CO2/km comb.
7.8 mpg
Details

Good price

£21,995

£22,995

RG26 3JE Hampshire, Hampshire

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Availability verified

-8%

1 / 4

Used (2018) Audi S4 Advanced 354 HP | Good price

3.0 TFSI V6 Saloon 4dr Petrol

2018
82,078 miles
Trim level: Advanced
3.0L Petrol
Sedan
Automatic
354 HP (260 kW)
7.5 mpg
Details

Good price

£16,300

£17,800

Motors.co.uk

NR5 0JS Costessey, Norfolk

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-5%

1 / 4

Used (2018) Audi S4 354 HP | Fair price

- Avant Quattro 5dr Tip Tronic

2018
49,700 miles
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
CO2 emissions: 179 g CO2/km comb.
7.8 mpg
Details

Fair price

£24,299

£25,699

CW7 Cheshire West And Chester, Cheshire

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Carwow

2018

(2018) Audi S4 354 HP

£24,299

Fair price

You save £1,301

CW7 Cheshire West And Chester, Cheshire

179 g CO2/km comb. - 354 HP (260 kW) - 7.8 Mpg

Carwow

2018

(2018) Audi S4 354 HP

£19,599

Fair price

You save £1,201

CW7 Cheshire West And Chester, Cheshire

174 g CO2/km comb. - 354 HP (260 kW) - 7.7 Mpg

Carwow

2018

(2018) Audi S4 354 HP

£24,699

Fair price

You save £1,101

CW7 Cheshire West And Chester, Cheshire

179 g CO2/km comb. - 354 HP (260 kW) - 7.8 Mpg

Carwow

2018

(2018) Audi S4 Design 354 HP

£21,995

Good price

You save £1,905

RG26 3JE Hampshire, Hampshire

179 g CO2/km comb. - 354 HP (260 kW) - 7.8 Mpg

-2%

1 / 3

Used (2018) Audi S4 354 HP | Fair price

- Quattro 4dr Tip Tronic

2018
61,540 miles
3.0L Petrol
Sedan
Automatic
354 HP (260 kW)
CO2 emissions: 174 g CO2/km comb.
7.7 mpg
Details

Fair price

£19,599

£20,099

CW7 Cheshire West And Chester, Cheshire

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1 / 3

Used (2018) Audi S4 354 HP | Fair price

- Avant Quattro 5dr Tip Tronic

2018
48,260 miles
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
CO2 emissions: 179 g CO2/km comb.
7.8 mpg
Details

Fair price

£24,699

£24,299

CW7 Cheshire West And Chester, Cheshire

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Availability verified

-4%

1 / 4

Used (2018) Audi S4 Design 354 HP | Fair price

- Quattro 4dr Tip Tronic

2018
60,000 miles
Trim level: Design
3.0L Petrol
Sedan
Automatic
354 HP (260 kW)
CO2 emissions: 174 g CO2/km comb.
7.7 mpg
Details

Fair price

£20,500

£21,499

CM23 3LJ Hertfordshire, Hertfordshire

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1 / 4

Used (2018) Audi S4 Design 354 HP | Fair price

3.0 TFSI V6 Saloon 4dr Petrol

2018
81,991 miles
Trim level: Design
3.0L Petrol
Sedan
Automatic
354 HP (260 kW)
CO2 emissions: 174 g CO2/km comb.
7.5 mpg
Details

Fair price

£18,690

RG7 5JF Berkshire, Berkshire

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1 / 3

Used (2018) Audi S4 Comfort 354 HP | Fair price

- Avant Quattro 5dr Tip Tronic

2018
83,500 miles
Trim level: Comfort
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
CO2 emissions: 179 g CO2/km comb.
7.8 mpg
Details

Fair price

£23,949

WD19 4HY Hertfordshire, Hertfordshire

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New

1 / 2

Used (2018) Audi S4 Design 354 HP | Fair price

- Avant Quattro 5dr Tip Tronic

2018
115,580 miles
Trim level: Design
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
CO2 emissions: 179 g CO2/km comb.
7.8 mpg
Details

Fair price

£15,995

LE10 3DJ Leicestershire, Leicestershire

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Carwow

2018

(2018) Audi S4 Design 354 HP

£17,777

Good price

You save £2,123

BL8 2AL Greater Manchester, Manchester

179 g CO2/km comb. - 354 HP (260 kW) - 7.5 Mpg

Carwow

2020

(2020) Audi S4 Black Edition 347 HP

£30,790

Fair price

Estimated price £29,880

WC1E 7DP Greater London, London

182 g CO2/km comb. - 347 HP (255 kW) - 6.9 Mpg

Carwow

2018

(2018) Audi S4 Design 354 HP

£15,995

Fair price

You save £505

LE10 3DJ Leicestershire, Leicestershire

179 g CO2/km comb. - 354 HP (260 kW) - 7.8 Mpg

Carwow

2020

(2020) BMW 435 M Sport 313 HP

£18,450

Fair price

You save £450

DE217RW

189 g CO2/km comb. - 313 HP (230 kW) - 7.2 Mpg

-7%

1 / 4

Used (2018) Audi S4 Advanced 354 HP | Fair price

3.0 TFSI V6 Tiptronic quattro Euro

2018
59,141 miles
Trim level: Advanced
3.0L Petrol
Sedan
Automatic
354 HP (260 kW)
7.5 mpg
Details

Fair price

£19,490

£20,999

Exchange and Mart

SK2 6RS Greater Manchester, Manchester

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-1%

1 / 4

Used (2018) Audi S4 Design 354 HP | Fair price

3.0 TFSI V6 Saloon 4dr Petrol

2018
73,000 miles
Trim level: Design
3.0L Petrol
Sedan
Automatic
354 HP (260 kW)
7.5 mpg
Details

Fair price

£19,650

£19,999

Motors.co.uk

BH8 9QW Bournemouth, Christchurch And Poole, Dorset

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1 / 4

Used (2018) Audi S4 Business | Fair price

Avant 3.0 TFSI V6

2018
99,266 miles
Trim level: Business
3.0L Petrol
Estate
Automatic
Details

Fair price

£19,950

Motors.co.uk

CT3 1NL Wingham, Kent

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-3%

1 / 3

Used (2018) Audi S4 Design 354 HP | Fair price

Avant 3.0 TFSI V6 Estate 5dr

2018
84,000 miles
Trim level: Design
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
7.5 mpg
Details

Fair price

£20,995

£21,795

Motors.co.uk

SO50 7HD Fair Oak, Hampshire

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1 / 3

Used (2018) Audi S4 Design 354 HP | Fair price

Avant 3.0 TFSI V6 Estate 5dr

2018
75,639 miles
Trim level: Design
3.0L Petrol
Estate
Automatic
354 HP (260 kW)
7.5 mpg
Details

Fair price

£22,000

Motors.co.uk

DE14 1RN Burton Upon Trent, Staffordshire

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Carwow

2019

(2019) Audi A8 Comfort 340 HP

£21,995

Fair price

Estimated price £21,789

LE10 3DJ Leicestershire, Leicestershire

177 g CO2/km comb. - 340 HP (250 kW) - 28.0 Mpg

Carwow

2019

(2019) BMW 630 M Sport 265 HP

£18,999

Fair price

You save £601

CW7 Cheshire West And Chester, Cheshire

154 g CO2/km comb. - 265 HP (194 kW) - 47.9 Mpg

Carwow

2017

(2017) Mercedes CLS350 AMG Line Premium 258 HP

£17,195

Fair price

Estimated price £16,659

PE302JG

142 g CO2/km comb. - 258 HP (189 kW) - 5.5 Mpg

Carwow

2019

(2019) Mercedes CLS350 AMG line 286 HP

£22,700

Fair price

Estimated price £22,241

LS12 2QN Armley, West Yorkshire

190 g CO2/km comb. - 286 HP (210 kW) - 6.8 Mpg

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