2021 Mercedes C300 • Compare 11 used cars with valuation

Market overview: April-2026 Price Analysis: A used Mercedes C300 from 2021 currently costs between £13,995 and £23,995. On average, the mileage for this year stands at 50,883 miles. The depreciation and price trend over the last 12 months is -£5,400.

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Carwow

2019

(2019) Mercedes C300 AMG line 258 HP

£20,495

Fair price

Estimated price £20,301

BL1 3DE Greater Manchester, Manchester

174 g CO2/km comb. - 258 HP (189 kW) - 7.5 Mpg

Carwow

2019

(2019) Mercedes C300 AMG line 245 HP

£18,754

Fair price

Estimated price £18,376

RM13 8RH Greater London, London

133 g CO2/km comb. - 245 HP (180 kW) - 5.9 Mpg

Carwow

2020

(2020) Mercedes C300 AMG line 245 HP

£21,485

Fair price

Estimated price £20,905

BL2 2BL Greater Manchester, Manchester

152 g CO2/km comb. - 245 HP (180 kW) - 5.7 Mpg

Carwow

2020

(2020) Mercedes C300 AMG Line Premium Plus 258 HP

£18,990

Good price

You save £2,510

SO418JD

174 g CO2/km comb. - 258 HP (189 kW) - 7.5 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

New

1 / 1

Used (2021) Mercedes C300 Sport Edition 245 HP | Super price

de EQ Power Sport Edition

2021
96,447 miles
Trim level: Sport Edition
2.0L Diesel
Estate
Automatic
245 HP (180 kW)
50.4 mpg
Details

Super price

£13,995

Parkers.co.uk

Southall, London

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-7%

1 / 4

Used (2021) Mercedes C300 AMG line 258 HP | Super price

C Class 2.0 AMG Line Coupe 2dr

2021
50,211 miles
Trim level: AMG line
2.0L Petrol
Coupe
Automatic
258 HP (189 kW)
Details

Super price

£18,499

£19,899

Motors.co.uk

YO19 4SH Crockey Hill, North Yorkshire

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-4%

1 / 2

Used (2021) Mercedes C300 AMG Line Premium 245 HP | Good price

C Class AMG Line Premium 4dr

2021
51,780 miles
Trim level: AMG Line Premium
2.0L Diesel
Sedan
Automatic
245 HP (180 kW)
43.5 mpg
Details

Good price

£18,995

£19,895

Motors.co.uk

S80 2QD Nottinghamshire, Nottinghamshire

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-4%

1 / 3

Used (2021) Mercedes C300 AMG Line Premium 245 HP | Fair price

C Class AMG Line Premium 4dr

2021
35,936 miles
Trim level: AMG Line Premium
2.0L Diesel
Sedan
Automatic
245 HP (180 kW)
43.5 mpg
Details

Fair price

£21,790

£22,920

Parkers.co.uk

RG7 4PG Aldermaston, Berkshire

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Carwow

2020

(2020) Mercedes C300 Active 245 HP

£20,699

Fair price

Estimated price £19,852

CW7 Cheshire West And Chester, Cheshire

146 g CO2/km comb. - 245 HP (180 kW) - 57.7 Mpg

Carwow

2019

(2019) Mercedes C300 AMG Line Premium 258 HP

£20,199

Fair price

You save £501

EH15 1BT Edinburgh, Edinburgh

162 g CO2/km comb. - 258 HP (189 kW) - 7.1 Mpg

Carwow

2019

(2019) Mercedes C300 AMG line 245 HP

£19,300

Fair price

Estimated price £18,294

ME5 9QG Kent, Kent

152 g CO2/km comb. - 245 HP (180 kW) - 5.7 Mpg

Carwow

2022

(2022) Mercedes C300 AMG line 245 HP

£23,420

Fair price

You save £180

BB1 3NU Lancashire, Lancashire

153 g CO2/km comb. - 245 HP (180 kW) - 5.8 Mpg

1 / 3

Used (2021) Mercedes C300 AMG line 258 HP | Fair price

C Class 2.0 AMG Line Edition

2021
30,082 miles
Trim level: AMG line
2.0L Petrol
Sedan
Automatic
258 HP (189 kW)
35.3 mpg
Details

Fair price

£22,845

£22,155

Parkers.co.uk

BL9 5AF Greater Manchester, Manchester

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1 / 4

Used (2021) Mercedes C300 AMG line 245 HP | Fair price

C Class DE AMG LINE NIGHT EDITION

2021
44,205 miles
Trim level: AMG line
2.0L Diesel
Estate
Automatic
245 HP (180 kW)
Details

Fair price

£20,693

Motors.co.uk

GU15 3DT Camberley, Surrey

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1 / 4

Used (2021) Mercedes C300 AMG line | Fair price

C Class AMG Line 5dr 9G-Tronic

2021
35,883 miles
Trim level: AMG line
2.0L Petrol
Estate
Automatic
Details

Fair price

£22,900

Motors.co.uk

DN37 7LG Laceby, Lincolnshire

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-4%

1 / 1

Used (2021) Mercedes C300 AMG line 245 HP | Fair price

C-Class Estate (2021/21)C 300 de

2021
36,230 miles
Trim level: AMG line
2.0L Diesel
Estate
Automatic
245 HP (180 kW)
49.6 mpg
Details

Fair price

£21,995

£22,995

Parkers.co.uk

Gillingham, Kent

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1 / 1

Used (2021) Mercedes C300 AMG line 245 HP | A bit pricey

de EQ Power AMG Line Night Edition

2021
82,921 miles
Trim level: AMG line
2.0L Diesel
Estate
Automatic
245 HP (180 kW)
49.6 mpg
Details

A bit pricey

£19,990

Parkers.co.uk

BT94 Irvinestown

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1 / 3

Used (2021) Mercedes C300 AMG line 245 HP | A bit pricey

C Class AMG Line 2dr 9G-Tronic

2021
54,141 miles
Trim level: AMG line
2.0L Diesel
Cabriolet
Automatic
245 HP (180 kW)
48.7 mpg
Details

A bit pricey

£23,995

Motors.co.uk

DN6 9JB Askern, South Yorkshire

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Carwow

2019

(2019) Mercedes C300 Active 258 HP

£19,799

Fair price

Estimated price £19,535

CW7 Cheshire West And Chester, Cheshire

150 g CO2/km comb. - 258 HP (189 kW) - 42.8 Mpg

Carwow

2019

(2019) Mercedes C300 AMG Line Premium 258 HP

£20,368

Fair price

Estimated price £19,595

WC1E 7DP Greater London, London

148 g CO2/km comb. - 258 HP (189 kW) - 44.0 Mpg

Carwow

2022

(2022) Mercedes C300 AMG line 258 HP

£22,799

Fair price

Estimated price £22,634

CW7 3AL Cheshire West And Chester, Cheshire

156 g CO2/km comb. - 258 HP (189 kW) - 6.9 Mpg

Carwow

2019

(2019) Mercedes C300 AMG Line Premium 245 HP

£18,792

Good price

You save £1,308

RM13 8RH Greater London, London

153 g CO2/km comb. - 245 HP (180 kW) - 5.8 Mpg

1 / 1

Used (2021) Mercedes C300 AMG Line Premium Plus | Expensive

AMG Line Premium Plus 4dr

2021
41,875 miles
Trim level: AMG Line Premium Plus
2.0L Hybrid
Sedan
Automatic
41.5 mpg
Details

Expensive

£22,295

Parkers.co.uk

CB10 2FN Little Sampford, Essex

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Carwow

2019

(2019) Mercedes C300 AMG Line Premium 258 HP

£18,299

Good price

You save £1,501

CW7 Cheshire West And Chester, Cheshire

162 g CO2/km comb. - 258 HP (189 kW) - 44.1 Mpg

Carwow

2019

(2019) Mercedes C300 AMG Line Premium 258 HP

£19,299

Fair price

You save £701

DE21 6BZ Derby, Derbyshire

148 g CO2/km comb. - 258 HP (189 kW) - 7.1 Mpg

Carwow

2019

(2019) Mercedes C300 AMG line 245 HP

£18,920

Fair price

You save £780

BB1 3NU Blackburn, Lancashire

145 g CO2/km comb. - 245 HP (180 kW) - 5.5 Mpg

Carwow

2019

(2019) Mercedes C300 AMG Line Premium 245 HP

£19,717

Fair price

You save £583

RM13 8RH Greater London, London

145 g CO2/km comb. - 245 HP (180 kW) - 5.5 Mpg

Showing 1 - 11 of 11 results

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See Mercedes C300

Mercedes C300 (285)