2020 Mercedes GLC300 • Compare 81 used cars with valuation

Market overview: April-2026 Price Analysis: A used Mercedes GLC300 from 2020 currently costs between £20,171 and £29,995. On average, the mileage for this year stands at 51,436 miles. The depreciation and price trend over the last 12 months is -£2,980.

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Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 258 HP

£31,550

Fair price

You save £1,450

CM1 3BH Essex, Essex

188 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£25,850

Super price

You save £2,850

N11 1GN Greater London, London

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 272 HP

£28,395

Super price

You save £5,005

LE10 3DJ Leicestershire, Leicestershire

191 g CO2/km comb. - 272 HP (200 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£25,199

Super price

You save £4,101

BB12 6EH Lancashire, Lancashire

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-1%

1 / 4

Used (2020) Mercedes GLC300 258 HP | Super price

- 4Matic Sport 5dr 9G-Tronic

2020
51,500 miles
2.0L Petrol
Estate
Automatic
258 HP (189 kW)
CO2 emissions: 187 g CO2/km comb.
8.1 mpg
Details

Super price

£19,722

£20,050

B24 9HF West Midlands, West Midlands

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Availability verified

-5%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium 245 HP | Good price

4Matic AMG Line Premium 5dr

2020
47,683 miles
Trim level: AMG Line Premium
2.0L Diesel
Automatic
245 HP (180 kW)
Details

Good price

£24,600

£26,006

Dealer

MK10 0BN Kingston, Buckinghamshire

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-4%

1 / 4

Used (2020) Mercedes GLC300 AMG line 258 HP | Super price

GLC 4Matic AMG Line 5dr 9G-Tro

2020
45,181 miles
Trim level: AMG line
2.0L Petrol
Estate
Automatic
258 HP (189 kW)
33.2 mpg
Details

Super price

£22,900

£23,860

Exchange and Mart

BB1 3NU Blackburn, Lancashire

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-3%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium 245 HP | Good price

4Matic AMG Line Premium 5dr

Mar 2020
34,213 miles
Trim level: AMG Line Premium
2.0L Diesel
Estate
Automatic
245 HP (180 kW)
CO2 emissions: 176 g CO2/km comb.
Details

Good price

£27,333

£28,333

Dealer

ME7 Hempstead, Hertfordshire

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Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium Plus 258 HP

£25,060

Fair price

Estimated price £24,789

BB1 3NU Lancashire, Lancashire

190 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£29,613

Good price

You save £2,787

BD2 1DS West Yorkshire, West Yorkshire

174 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£27,100

Good price

You save £1,500

S605BD

174 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium Plus 258 HP

£33,325

Fair price

Estimated price £31,857

SL1 5PR Berkshire, Berkshire

190 g CO2/km comb. - 258 HP (189 kW) - 34.0 Mpg

-5%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium 241 HP | Good price

GLC 4Matic AMG Line Premium 5dr

2020
34,213 miles
Trim level: AMG Line Premium
2.0L Diesel
SUV
Automatic
241 HP (177 kW)
Details

Good price

£27,333

£28,990

Buyacar

Delivered to you

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-5%

1 / 2

Used (2020) Mercedes GLC300 AMG Line Premium 245 HP | Super price

GLC-Class (2020/20)GLC 300 d

2020
38,699 miles
Trim level: AMG Line Premium
2.0L Diesel
SUV
Automatic
245 HP (180 kW)
42.2 mpg
Details

Super price

£25,495

£26,895

Motors.co.uk

LA3 3FB Lancashire, Lancashire

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-5%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium 241 HP | Good price

GLC 4Matic AMG Line Premium Pls

2020
44,601 miles
Trim level: AMG Line Premium
2.0L Diesel
SUV
Automatic
241 HP (177 kW)
Details

Good price

£26,995

£28,434

Honestjohn

WC1E 7DP Greater London, London

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-3%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium 245 HP | Good price

GLC 4Matic AMG Line Premium 5dr

2020
47,154 miles
Trim level: AMG Line Premium
2.0L Diesel
Estate
Automatic
245 HP (180 kW)
42.2 mpg
Details

Good price

£24,850

£25,695

Parkers.co.uk

HP18 0PZ Buckinghamshire, Buckinghamshire

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-8%

Used (2020) Mercedes GLC300 AMG Line Premium 245 HP | Good price

GLC-Class (2020/70)GLC 300 d

2020
48,000 miles
Trim level: AMG Line Premium
2.0L Diesel
Automatic
245 HP (180 kW)
42.2 mpg
Details

Good price

£24,770

£26,970

Parkers.co.uk

Eccles, Manchester

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-8%

1 / 3

Used (2020) Mercedes GLC300 AMG line | Super price

GLC 2.0 AMG Line (Premium) SUV 5dr

2020
48,000 miles
Trim level: AMG line
2.0L Diesel
SUV
Automatic
Details

Super price

£24,770

£26,970

Motors.co.uk

M30 7LW Eccles, Manchester

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Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£32,990

Fair price

You save £510

HA36AG

173 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£27,995

Fair price

You save £1,305

DE737HL

174 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£23,950

Fair price

You save £1,050

WD3 3RT Croxley Green, Hertfordshire

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£23,300

Fair price

You save £200

LS270TS

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

1 / 4

Used (2020) Mercedes GLC300 AMG line 258 HP | Super price

GLC 4Matic AMG Line 5dr 9G-Tro

2020
50,463 miles
Trim level: AMG line
2.0L Petrol
Estate
Automatic
258 HP (189 kW)
33.2 mpg
Details

Super price

£22,720

Motors.co.uk

PE4 6ZL Werrington, Cambridgeshire

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1 / 1

Used (2020) Mercedes GLC300 AMG Line Premium | Super price

2020
43,000 miles
Trim level: AMG Line Premium
2.0L Diesel
Automatic
44.1 mpg
Details

Super price

£24,990

Parkers.co.uk

CM16 Epping, Essex

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1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium | Good price

2020
43,000 miles
Trim level: AMG Line Premium
2.0L Diesel
Estate
Automatic
Details

Good price

£24,990

Motors.co.uk

CM16 6BU North Weald Bassett, Essex

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1 / 3

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 2.0 AMG Line

2020
61,460 miles
Trim level: AMG line
2.0L Diesel
SUV
Automatic
Details

Good price

£27,450

Motors.co.uk

S44 5XA Derbyshire, Derbyshire

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-2%

1 / 1

Used (2020) Mercedes GLC300 AMG line | Super price

2020
51,523 miles
Trim level: AMG line
2.0L Diesel
Automatic
43.5 mpg
Details

Super price

£22,988

£23,488

Parkers.co.uk

Cardiff, South Glamorgan

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-5%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium | Super price

GLC-Class Coupe (2020/69)GLC 300 d

2020
33,422 miles
Trim level: AMG Line Premium
2.0L Diesel
Coupe
Automatic
40.4 mpg
Details

Super price

£28,488

£29,988

Parkers.co.uk

CF11 6NY Cardiff, South Glamorgan

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1 / 4

Used (2020) Mercedes GLC300 | Super price

GLC Class 2.0 MHEV Sport G-Tronic+

2020
67,000 miles
2.0L Petrol
SUV
Automatic
33.2 mpg
Details

Super price

£19,440

Motors.co.uk

WD23 2NZ Hertfordshire, Hertfordshire

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1 / 1

Used (2020) Mercedes GLC300 AMG line 258 HP | Good price

4Matic AMG Line 9G-Tronic Plus

2020
39,723 miles
Trim level: AMG line
2.0L Petrol
Automatic
258 HP (189 kW)
33.2 mpg
Details

Good price

£24,489

Parkers.co.uk

Sheffield, South Yorkshire

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1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 4Matic AMG Line 5dr 9G-Tro

2020
29,807 miles
Trim level: AMG line
2.0L Petrol
Coupe
Automatic
31.7 mpg
Details

Good price

£28,499

Parkers.co.uk

BL9 6HH Greater Manchester, Manchester

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-2%

1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium | Super price

GLC 4Matic AMG Line Premium 5dr

2020
67,705 miles
Trim level: AMG Line Premium
2.0L Diesel
Coupe
Automatic
40.4 mpg
Details

Super price

£24,990

£25,750

Motors.co.uk

TQ9 6QB Totnes, Devon

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Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£28,199

Super price

You save £4,001

BB12 6EH Lancashire, Lancashire

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£29,000

Super price

You save £4,700

CM1 3BH Essex, Essex

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£32,990

Fair price

Estimated price £31,958

CM50ER

173 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£30,500

Fair price

Estimated price £29,088

WA15 8SX Hale Barns, Manchester

174 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

2020
47,025 miles
Trim level: AMG line
2.0L Diesel
Estate
Automatic
Details

Good price

£23,750

Motors.co.uk

L34 9HX Knowsley, Merseyside

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1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 2.0 AMG Line (Premium) Coupe

2020
31,250 miles
Trim level: AMG line
2.0L Diesel
Coupe
Automatic
40.4 mpg
Details

Good price

£31,495

£31,795

Motors.co.uk

NP20 2NS Newport, Gwent

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-11%

1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 2.0AMG Line (Premium Plus) SUV

2020
24,640 miles
Trim level: AMG line
2.0L Diesel
SUV
Automatic
Details

Good price

£29,995

£33,995

Motors.co.uk

NE25 8UG Tyne And Wear, Tyne And Wear

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1 / 4

Used (2020) Mercedes GLC300 AMG Line Premium | Good price

GLC 4Matic AMG Line Premium 5dr

2020
86,000 miles
Trim level: AMG Line Premium
2.0L Diesel
Coupe
Automatic
Details

Good price

£21,989

Motors.co.uk

BD21 1QD West Yorkshire, West Yorkshire

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-3%

1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 2.0 AMG Line (Premium Plus)

2020
46,000 miles
Trim level: AMG line
2.0L Diesel
Estate
Automatic
Details

Good price

£27,999

£28,999

Motors.co.uk

MK44 3LH Great Barford, Bedfordshire

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Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£22,900

Super price

You save £4,600

BB1 3NU Lancashire, Lancashire

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£26,995

Good price

You save £1,905

LE39QB

174 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG Line Premium 245 HP

£27,899

Good price

You save £2,901

CW7 Cheshire West And Chester, Cheshire

173 g CO2/km comb. - 245 HP (180 kW) - 47.9 Mpg

Carwow

2022

(2022) Mercedes GLC300 AMG line 258 HP

£23,100

Fair price

You save £700

SW170HB

191 g CO2/km comb. - 258 HP (189 kW) - 8.3 Mpg

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