Mercedes GLC300 used • 271 cars price-checked by AutoUncle

Market overviewUsed Mercedes GLC300 prices typically range from £20,995 to £49,995, averaging £33,693 (according to fresh market data from January). The most popular Mercedes GLC300 variants right now are AMG Line Premium, AMG line, AMG Line Premium Plus. We have identified 39 cars priced below the market. The average selling time for used Mercedes GLC300 is currently 30 days.

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Super price

Good price

Fair price

A bit pricey

Expensive

-5%

Used (2019) Mercedes GLC300 AMG Line Premium 245 HP | Super price

GLC-Class (2019/68)GLC 300 d

  • 2019
  • 26,402 miles
  • Trim levelAMG Line Premium
  • 2.0L Diesel
  • Automatic
  • 245 HP (180 kW)
  • mpg42.2
  • Details
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Super price

£22,120
£23,455
Dealer
Blackburn, Lancashire
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-4%
1 / 1

Used (2022) Mercedes GLC300 AMG Line Premium Plus 245 HP | Good price

GLC-Class (2022/22)GLC 300 d

  • 2022
  • 15,259 miles
  • Trim levelAMG Line Premium Plus
  • 2.0L Diesel
  • Automatic
  • 245 HP (180 kW)
  • mpg42.2
  • Details
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Good price

£35,305
£36,850
Dealer
Orpington, London
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-2%
1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 2.0AMG Line (Premium) SUV 5dr

  • 2020
  • 27,752 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • Details
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Good price

£28,200
£29,000
Dealer
CM1 3BH Chelmsford, Essex
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-5%
1 / 3

Used (2021) Mercedes GLC300 AMG Line Premium 245 HP | Super price

GLC 4Matic AMG Line Premium 5dr

  • 2021
  • 61,381 miles
  • Trim levelAMG Line Premium
  • 2.0L Diesel
  • Estate
  • Automatic
  • 245 HP (180 kW)
  • mpg42.2
  • Details
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Super price

£24,995
£26,450
Dealer
DE5 8LG Denby, Derbyshire
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-3%
1 / 4

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

GLC 2.0 AMG Line Premium+ D 4Matic

  • 2020
  • 61,800 miles
  • Trim levelAMG Line Premium Plus
  • 2.0L Diesel
  • SUV
  • Automatic
  • Details
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Good price

£25,000
£26,000
Dealer
M38 9ST Manchester, Manchester
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Availability verified
-3%
1 / 4

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

GLC 2020 | 2.0AMG Line (Premium)

  • 2020
  • 45,917 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • 245 HP (180 kW)
  • Details
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Good price

£24,600
£25,500
Dealer
This veh This vehicle is located at Blue Bell Hill Buckmore Park, Maidstone RoadBlue Bell HillChathamKent MEQG, Kent
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1 / 4

Used (2021) Mercedes GLC300 AMG line 245 HP | Good price

GLC 2.0 AMG Line (Premium) SUV 5dr

  • 2021
  • 74,156 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • 245 HP (180 kW)
  • Details
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Good price

£23,799
£23,899
Dealer
YO19 4SH York, North Yorkshire
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Availability verified
-2%
1 / 4

Used (2023) Mercedes GLC300 AMG line 258 HP | Good price

GLC4Matic AMG Line 5dr 9G-Tron

  • 2023
  • 26,138 miles
  • Trim levelAMG line
  • 2.0L Petrol
  • Coupe
  • Automatic
  • 258 HP (189 kW)
  • Details
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Good price

£33,995
£34,995
Dealer
KT17 1JG Epsom, Surrey
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Availability verified
-1%
1 / 4

Used (2020) Mercedes GLC300 AMG line | Super price

GLC DE 4MATIC AMG LINE

  • 2020
  • 25,572 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • Details
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Super price

£25,100
£25,400
Dealer
ME5 9QG Chatham, Kent
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-2%
1 / 1

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

GLC-Class (2020/69)GLC 300 d

  • 2020
  • 50,317 miles
  • Trim levelAMG Line Premium Plus
  • 2.0L Diesel
  • Automatic
  • 245 HP (180 kW)
  • mpg42.2
  • Details
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Good price

£27,299
£27,958
Dealer
Orpington, London
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Availability verified
-1%
1 / 4

Used (2021) Mercedes GLC300 AMG Line Premium 245 HP | Good price

4Matic AMG Line Premium 5dr

  • 2021
  • 29,870 miles
  • Trim levelAMG Line Premium
  • 2.0L Diesel
  • SUV
  • Automatic
  • 245 HP (180 kW)
  • Details
autouncle-certified

Good price

£29,980
£30,480
Dealer
Delivered to you
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-5%
1 / 3

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

GLC4Matic AMG Line Premium 5dr

  • 2020
  • 29,168 miles
  • Trim levelAMG Line Premium
  • 2.0L Diesel
  • SUV
  • Automatic
  • 241 HP (177 kW)
  • Details
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Good price

£28,395
£29,990
Dealer
LE11SP Leicester, Leicestershire
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Availability verified
-3%
1 / 1

Used (2022) Mercedes GLC300 AMG Line Premium 258 HP | Good price

GLC-Class (2022/22)GLC 300 4Matic

  • 2022
  • 21,000 miles
  • Trim levelAMG Line Premium
  • 2.0L Petrol
  • Automatic
  • 258 HP (189 kW)
  • mpg33.2
  • Details
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Good price

£30,999
£31,999
Dealer
Southport, Merseyside
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-7%
1 / 3

Used (2020) Mercedes GLC300 AMG line | Good price

GLC4Matic AMG Line 5dr 9G-Tron

  • 2020
  • 48,627 miles
  • Trim levelAMG line
  • 2.0L Petrol
  • Coupe
  • Automatic
  • Details
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Good price

£24,099
£25,949
Dealer
NN18 8AA Corby, Northamptonshire
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1 / 4

Used (2022) Mercedes GLC300 AMG Line Premium 245 HP | Good price

4Matic AMG Line Premium 5dr

  • 2022
  • 40,184 miles
  • Trim levelAMG Line Premium
  • 2.0L Diesel
  • SUV
  • Automatic
  • 245 HP (180 kW)
  • Details
autouncle-certified

Good price

£29,980
Dealer
Delivered to you
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1 / 4

Used (2020) Mercedes GLC300 AMG line 272 HP | Good price

GLC 2.0 MHEV AMG Line Coupe 5dr

  • 2020
  • 46,038 miles
  • Trim levelAMG line
  • 2.0L Petrol
  • Coupe
  • Automatic
  • 272 HP (200 kW)
  • mpg31.7
  • Details
autouncle-certified

Good price

£27,990
Dealer
Catterick Garrison, North Yorkshire
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Availability verified
-12%
1 / 3

Used (2019) Mercedes GLC300 AMG line 245 HP | Good price

GLC 2.0AMG Line (Premium) SUV 5dr

  • 2019
  • 71,143 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • 245 HP (180 kW)
  • mpg42.2
  • Details
autouncle-certified

Good price

£20,795
£23,795
Dealer
LU3 3AN Bedfordshire, Bedfordshire
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-5%
1 / 4

Used (2019) Mercedes GLC300 AMG Line Premium Plus | Good price

GLC-Class Coupe (2019/69)GLC 300 d

  • 2019
  • 62,000 miles
  • Trim levelAMG Line Premium Plus
  • 2.0L Diesel
  • Coupe
  • Automatic
  • mpg40.4
  • Details
autouncle-certified

Good price

£28,490
£29,990
Dealer
RM6 5SD Romford, London
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-2%
1 / 1

Used (2022) Mercedes GLC300 AMG Line Premium Plus | Good price

GLC-Class (2022/22)GLC 300 e

  • 2022
  • 12,962 miles
  • Trim levelAMG Line Premium Plus
  • 2.0L Hybrid
  • Automatic
  • mpg34.5
  • Details
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Good price

£33,995
£34,995
Dealer
Edinburgh
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1 / 3

Used (2022) Mercedes GLC300 AMG line 258 HP | Super price

GLC 4Matic AMG Line 9G-Tronic

  • 2022
  • 38,811 miles
  • Trim levelAMG line
  • 2.0L Petrol
  • SUV
  • Automatic
  • 258 HP (189 kW)
  • Details
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Super price

£27,197
Dealer
B33 0JJ Birmingham, West Midlands
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1 / 4

Used (2022) Mercedes GLC300 AMG line | Good price

GLC 2.0 AMG Line (Premium) SUV 5dr

  • 2022
  • 40,962 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • Details
autouncle-certified

Good price

£29,000
Dealer
CM1 3BH Chelmsford, Essex
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1 / 1

Used (2019) Mercedes GLC300 | Good price

GLC-Class (2019/69)GLC 300 4Matic

  • 2019
  • 56,000 miles
  • 2.0L Petrol
  • Automatic
  • mpg33.2
  • Details
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Good price

£18,990
Dealer
Edgware, London
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-3%
1 / 4

Used (2020) Mercedes GLC300 AMG line | Good price

GLC 2.0AMG Line (Premium) SUV 5dr

  • 2020
  • 38,815 miles
  • Trim levelAMG line
  • 2.0L Diesel
  • SUV
  • Automatic
  • Details
autouncle-certified

Good price

£26,650
£27,600
Dealer
CM1 3BH Chelmsford, Essex
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Availability verified
-10%
1 / 4

Used (2022) Mercedes GLC300 AMG Line Premium 245 HP | Good price

GLC4Matic AMG Line Premium 5dr

  • 2022
  • 52,807 miles
  • Trim levelAMG Line Premium
  • 2.0L Diesel
  • SUV
  • Automatic
  • 245 HP (180 kW)
  • mpg42.8
  • CO2173 g CO2/km comb.
  • Details
autouncle-certified

Good price

£28,198
£31,498
Dealer
AB12 3BE Aberdeen
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1 / 3

Used (2022) Mercedes GLC300 AMG line 258 HP | Good price

GLC 4Matic AMG Line 5dr 9G-Tro

  • 2022
  • 35,549 miles
  • Trim levelAMG line
  • 2.0L Petrol
  • SUV
  • Automatic
  • 258 HP (189 kW)
  • Details
autouncle-certified

Good price

£27,699
Dealer
DE21 7WA Derby, Derbyshire
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Showing 1 - 25 of 268 results

How much does the Mercedes GLC300 depreciate?

Used Mercedes GLC300

A used Mercedes GLC300 (2020) model loses about £142 per month in value.


Factors that affect the depreciation of a Mercedes GLC300:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a Mercedes GLC300. In addition to the monthly depreciation of £142, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly cost.

How much does a used Mercedes GLC300 cost? Prices, ratings and depreciation by model year

How much does a used Mercedes GLC300 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Depreciation
(12 mth.)

Cars for sale

2025 Mercedes GLC300

£45,702 - £61,998£50,601-£4,84010

2024 Mercedes GLC300

£40,220 - £50,990£44,768-£5,36048

2023 Mercedes GLC300

£36,495 - £56,898£44,243-£1,54026

2022 Mercedes GLC300

£24,280 - £35,900£31,376-£1,94056

2021 Mercedes GLC300

£20,750 - £34,995£29,222-£3,60035

2020 Mercedes GLC300

£18,750 - £32,495£26,879-£1,70063

2019 Mercedes GLC300

£20,500 - £31,245£25,669-£2,96033

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 8 January 2026

Comparison of Mercedes GLC300 variants and prices

Below you can compare prices and depreciation for the 3 most popular Mercedes GLC300 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Mercedes GLC300 variants and prices

Variant

Price range*

Avg. Price

Depreciation
(12 mth.)

Cars for sale

Mercedes GLC300 AMG Line Premium Plus

£23,995 - £52,980£35,106-£1,38036
🏆 The most popular

Mercedes GLC300 AMG Line Premium

£24,280 - £47,480£34,904-£1,180133
💰 The budget choice

Mercedes GLC300 AMG line

£20,500 - £48,900£31,758-£1,90093

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 8 January 2026

Which variant should you choose?

💰 The budget choice

The AMG line is the cheapest entry point with an average price of £31,758.

🏆 The most popular

There are the most AMG Line Premium for sale right now (133), which gives you the most options to choose from.

📈 The best value

The AMG Line Premium has held its price stable with minimal loss in value over the past year (-£1,180).

Mercedes GLC300 (model year 2020) - Price development for the last 12 months and price projection for the next 6 months (January 2025 - June 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - January
£28,980
£26,560£31,380
Estimate
2025 - February
£28,600
£26,020£31,180
Estimate
2025 - March
£29,200
£26,620£31,800
Estimate
2025 - April
£29,160
£26,780£31,540
Estimate
2025 - May
£28,880
£26,560£31,180
Estimate
2025 - June
£28,560
£26,200£30,940
Estimate
2025 - July
£28,340
£25,900£30,780
Estimate
2025 - August
£28,200
£25,960£30,420
Estimate
2025 - September
£28,220
£25,940£30,480
Estimate
2025 - October
£27,740
£25,200£30,260
Estimate
2025 - November
£27,340
£24,620£30,060
Estimate
2025 - December
£27,280
£24,640£29,940
Estimate
2026 - February
£26,860
--
Forecast
2026 - March
£26,640
--
Forecast
2026 - April
£26,440
--
Forecast
2026 - May
£26,220
--
Forecast
2026 - June
£26,020
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 8 January 2026

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

-£1,700

Next 6 months

-£1,260

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Super price

Good price

Fair price

A bit pricey

Expensive

Looking for a used Mercedes GLC300 at an unbeatable price?

Are you thinking of purchasing a used SUV? Then the Mercedes GLC300 is an excellent decision. AutoUncle showcases a total of 393 cars collected from different dealership websites and online marketplaces.

How much does a used Mercedes GLC300 cost?

The price of a used Mercedes GLC300 ranges from £21,995 for the cheapest model to £49,998 for the latest and most well-equipped model.

The price for a Mercedes GLC300 is dictated by five main factors: the year of manufacture, engine size and performance, fuel efficiency, the car's mileage together with the equipment level of the car.

For instance, a younger model with fewer miles on the odometer, or more luxurious models with more potent engines will generally cost more than, for example, an older model with more kilometres driven or with a lower equipment level.

What equipment variants are available for Mercedes GLC300?

The following equipment variants are the most populare ones for the Mercedes GLC300:

As you examine the price of a used Mercedes GLC300, it's necessary to examine vehicles sharing identical trim level. If you don't, you might draw an inaccurate conclusion about which car to purchase.

Which fuel options are available for Mercedes GLC300?

The predominant fuel variant for the Mercedes GLC300 is diesel.

Types of fuel:

Before deciding on a fuel type to buy, we highly recommend taking some time to consider your current driving habits. Is city driving or highway and motorway travel more common for you? What are your average miles driven per week?

For shorter trips, electric cars, plug-in hybrids and petrol cars are great. For longer commutes, an electric car is often the best choice - especially with charging options at home or at work. If you have a daily commute over longer distances, a modern electric car can be a great choice - especially if you have access to charging at home or at work. In a few cases with long journeys and limited charging infrastructure, diesel can be a practical solution. Be aware that in several countries, diesel engines that emit high levels of pollutants are barred from urban areas.

What body options does the Mercedes GLC300 have?

The Mercedes GLC300 is available in several body types, but the most popular version is SUV. Sport Utility Vehicles, or SUVs, are some of the most popular cars on the market today, thanks to their versatile style and elevated ride height.

AutoUncle's selection of Mercedes GLC300 by body type, price and quantity for sale

  • Mercedes GLC300 suv: 166 cars - average price £34,171
  • Mercedes GLC300 stationcar: 109 cars - average price £27,829
  • Mercedes GLC300 coupe](https://www.autouncle.co.uk/en-gb/used-cars/Mercedes/GLC300/b-coupe): 75 cars - average price £36,294

What other cars offer some of the same features as the Mercedes GLC300?

There are various possible competitors to the Mercedes GLC300.

Favored alternatives for the Mercedes GLC300

  • Nissan Qashqai
  • Kia Sportage
  • VW Tiguan

With a selection of 10,964 available models on AutoUncle, the Nissan Qashqai clearly stands out as the top alternative to the Mercedes GLC300. Average listing price for the Nissan Qashqai is £16,400.

Another popular choice in this class is the Kia Sportage with 7,280 cars on the market and an average price tag of £19,998. The VW Tiguan is the third best alternative. There are currently 6,180 of this car for sale in the UK with an average sales price of £22,197.

Pondering the adoption of an electric car?

If you're in the market for an electric vehicle within the car segment J-segment just like the Mercedes GLC300, here are some few suggestions:

Still on the hunt for the right electric car? View our complete collection of electric cars here.

All body types for Mercedes GLC300

All regions for Mercedes GLC300

All fuel types for Mercedes GLC300