Mercedes GLC300 Valuation: 436 used car listings analysed

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How much does the Mercedes GLC300 depreciate?

Used Mercedes GLC300

A used Mercedes GLC300 (2025) model loses about £153 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 £153, 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

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2026 Mercedes GLC300

£49,890 - £61,950£54,7484,000 miles-< 10

2025 Mercedes GLC300

£42,995 - £64,298£52,9005,400 miles-£1,840104

2024 Mercedes GLC300

£40,480 - £51,950£45,56210,300 miles-£7,32036

2023 Mercedes GLC300

£32,990 - £48,400£41,31320,400 miles-£5,76051

2022 Mercedes GLC300

£23,500 - £35,743£29,30640,000 miles-£4,32086

2021 Mercedes GLC300

£18,880 - £37,990£28,61844,400 miles-£3,32035

2020 Mercedes GLC300

£19,450 - £31,295£26,11349,800 miles-£2,98093

2019 Mercedes GLC300

£20,998 - £27,690£24,93160,700 miles-£2,04025

*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: 10 April 2026

Comparison of Mercedes GLC300 variants and prices

Below you can compare prices and depreciation for the 4 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

Median Mileage

Depreciation
(12 mth.)

Cars for sale

Mercedes GLC300 Urban

£47,542 - £51,950£49,9965,300 miles-< 10
📈 The best value

Mercedes GLC300 AMG Line Premium Plus

£25,020 - £64,298£43,97614,100 miles+£1,720110

Mercedes GLC300 AMG line

£22,499 - £59,198£35,80834,300 miles-£140126
💰 The budget choice

Mercedes GLC300 AMG Line Premium

£22,295 - £52,490£34,14635,200 miles-£380191

*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: 10 April 2026

Which variant should you choose?

💰 The budget choice

The AMG Line Premium is the cheapest entry point with an average price of £34,146.

🏆 The most popular

There are the most AMG Line Premium for sale right now (191), which gives you the most options to choose from.

📈 The best value

The AMG Line Premium Plus has held its price stable with minimal loss in value over the past year (+£1,720).

Mercedes GLC300 (model year 2025) - Price development for the last 7 months and price projection for the next 6 months (September 2025 - September 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - September
£54,340
£51,100£57,560
Estimate
2025 - October
£51,840
£48,480£55,200
Estimate
2025 - November
£51,480
£48,760£54,200
Estimate
2025 - December
£49,500
£46,780£52,220
Estimate
2026 - January
£51,440
£46,360£56,520
Estimate
2026 - February
£54,000
£47,980£60,020
Estimate
2026 - March
£52,500
£47,660£57,320
Estimate
2026 - May
£52,760
--
Forecast
2026 - June
£52,880
--
Forecast
2026 - July
£53,020
--
Forecast
2026 - August
£53,140
--
Forecast
2026 - September
£53,280
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 10 April 2026

Average Monthly Depreciation

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

Past 12 months

-£1,840

Next 6 months

£780

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On the hunt for a used Mercedes GLC300?

Are you interested in getting a used SUV? The Mercedes GLC300 is a great pick. On AutoUncle, you can find 371 used Mercedes GLC300s for sale in the UK compiled from numerous dealership websites and online marketplaces.

How much does a used Mercedes GLC300 cost?

A used Mercedes GLC300 costs between £21,749 for the cheapest variant and £56,890 for the latest and most well-equipped model on AutoUncle.

The used car price of an Mercedes GLC300 is determined by a number of factors, the most important of which are year of production, engine capacity and power, fuel efficiency, how many miles the car has travelled not to mention equipment level.

For example, a younger car with fewer miles on the odometer typically costs more. Likewise, models at the premium end with luxurious features or potent engines tend to come with a more substantial price tag than, for example, an older car without special equipment and with many kilometres behind it.

What equipment variants is the Mercedes GLC300 available in?

While evaluating the cost of a pre-owned Mercedes GLC300, it's crucial to examine vehicles sharing identical trim level. Otherwise, you might draw an inaccurate conclusion about which car to purchase.

What are the fuel options for the Mercedes GLC300?

The predominant fuel variant for the Mercedes GLC300 is diesel.

Types of fuel for Mercedes GLC300:

Your driving tendencies should play a significant role in your fuel type selection. Is city driving or highway and motorway travel more common for you? What are your average miles driven per week?

If you drive mostly short distances, range is not crucial - so electric, plug-in or petrol are obvious choices. For daily long journeys, electric cars make the most sense if you can charge easily. 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. Diesel cars can still make sense if you drive very far and don't have access to charging. Keep in mind that diesel engines with high emissions have been banned from entering cities in a range of countries.

Which different body types does the Mercedes GLC300 come in?

Stationcar is a favourite among drivers of the Mercedes GLC300. Estates, also known as station wagons, are popular in the current market because they offer the combination of excellent driving capabilities and the advantage of lots of space. Station wagons, SUVs and MPVs tend to be popular with active families.

What is the cost of Mercedes GLC300 with different body types?

  • Mercedes GLC300 stationcar: 145 cars - average price £35,358
  • Mercedes GLC300 suv: 111 cars - average price £35,965
  • Mercedes GLC300 coupe](https://www.autouncle.co.uk/en-gb/used-cars/Mercedes/GLC300/b-coupe): 57 cars - average price £34,344

Which cars can be an alternative to the Mercedes GLC300?

There are various similar cars to the Mercedes GLC300.

Most popular choices as an alternative to the Mercedes GLC300

  • Nissan Qashqai
  • Kia Sportage
  • VW Tiguan

The Nissan Qashqai is a strong alternative to the Mercedes GLC300. It has an average sale price of £15,198 and right now you can find 6,484 for sale on AutoUncle.

The Kia Sportage is another popular pick, with 5,923 cars currently for sale and an average price of £22,000. The VW Tiguan is the third best alternative. There are currently 5,110 of this car for sale in the UK with an average sales price of £24,999.

Looking for a more eco-friendly alternative to the Mercedes GLC300?

Considering something greener than the Mercedes GLC300? Check out these electric alternatives from the same segment::

Still on the hunt for the right electric car? Review our entire selection of electric cars here.

All body types for Mercedes GLC300

All regions for Mercedes GLC300

All fuel types for Mercedes GLC300