Mercedes 300 used – 100 cars for sale with price evaluation

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How much does the Mercedes 300 depreciate?

Used Mercedes 300

A used Mercedes 300 (2024) model loses about £577 per month in value.


Factors that affect the depreciation of a Mercedes 300:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a Mercedes 300. In addition to the monthly depreciation of £577, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly cost.

Mercedes 300 - Price and depreciation overview by model year

Mercedes 300 - Price and depreciation overview by model year

Model year

Typical price range*

Average price

Price trend / depreciation
(last 12 months)

Cars for sale

2026 Mercedes 300

£40,995 - £69,189£61,133+£40018

2025 Mercedes 300

£53,495 - £55,115£54,389-6

2024 Mercedes 300

£40,993 - £59,990£46,294-£6,92030

2023 Mercedes 300

£30,949 - £48,199£40,668-£5,30020

2022 Mercedes 300

£119,950 - £119,950£119,950-1

2021 Mercedes 300

£35,999 - £35,999£35,999-1

2020 Mercedes 300

£33,995 - £81,990£49,175-5

2019 Mercedes 300

£26,995 - £45,489£36,775-7

2018 Mercedes 300

- - ----

2017 Mercedes 300

£14,950 - £18,890£16,612-3

2016 Mercedes 300

- - ----

2015 Mercedes 300

- - ----

2005 Mercedes 300

£4,900 - £4,900£4,900-1

*The “Typical 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

Market price development for 2024 Mercedes 300 (August 2024 - February 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2024 - August
£55,284
£50,121£60,446
Estimate
2024 - September
£49,546
£48,357£50,735
Estimate
2024 - October
£52,203
£49,941£54,465
Estimate
2024 - November
£52,231
£49,904£54,558
Estimate
2024 - December
£52,263
£48,402£56,123
Estimate
2025 - January
£52,295
£46,901£57,689
Estimate
2025 - February
£50,706
£46,263£55,149
Estimate
2025 - March
£61,590
£56,359£66,822
Estimate
2025 - April
£55,789
£48,962£62,616
Estimate
2025 - May
£53,115
£48,120£58,109
Estimate
2025 - June
£49,037
£46,971£51,103
Estimate
2025 - July
£48,716
£45,121£52,311
Estimate
2025 - August
£48,371
£44,693£52,049
Estimate
2025 - September
£45,727
--
Forecast
2025 - October
£43,083
--
Forecast
2025 - November
£40,439
--
Forecast
2025 - December
£37,795
--
Forecast
2026 - January
£35,151
--
Forecast
2026 - February
£32,507
--
Forecast

All estimates and forecasts are based on actual market data

Average Monthly Depreciation

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

Past 12 months

-£6,920

Next 6 months

-£15,860

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Price checked by AutoUncle

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Good price

Fair price

A bit pricey

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Looking for a used Mercedes 300?

Are you interested in buying a pre-owned sports car? Then the Mercedes 300 is a popular decision. AutoUncle has 99 used Mercedes 300 for sale in the UK collected from various dealership websites and online marketplaces.

What is the price of a used Mercedes 300?

A used Mercedes 300 costs between £6,990 for the cheapest variant and £68,979 for the most expensive model.

The price for the German car varies according to five main factors: year of production, engine size and performance, the car's fuel consumption, how much the car's odometer reads together with the trim level of the car.

As an example, a newer model with fewer miles covered, or a high-end version boasting a potent engine, often fetches a top-tier price than an earlier version with less equipment and higher mileage.

Does the Mercedes 300 offer multiple trim lines?

Here is an overview of the most popular equipment variants for Mercedes 300, sorted by number of cars for sale and their market price:

When assessing the price of a used Mercedes 300, it's essential to evaluate vehicles with equivalent engines and accessories. If you don't, you might draw an inaccurate conclusion about which car to buy.

What are the available fuel options for the Mercedes 300?

The principal fuel kind for a Mercedes 300 is petrol.

Types of fuel:

  • Mercedes 300 petrol: 83 cars currently available with an average price of £43,803
  • Mercedes 300 diesel: 13 cars currently available with an average price of £45,840
  • Mercedes 300 el: Currently there is 3 cars available on AutoUncle with an average price of £66,648

It's essential to take into account your driving habits when determining the right fuel type. How many miles do you drive in a normal week? Do you take many short trips, or do you tend to drive long distances?

Electric, plug-in hybrid and petrol work well for short trips. If you drive long distances on a daily basis, an electric car is good - especially if you can charge 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. Diesel cars can still make sense if you drive very far and don't have access to charging. Note that in some countries, high-emission diesel engines have been banned from entering certain cities.

Are there more body variants of Mercedes 300?

The Mercedes 300 comes in various body types, stationcar being the most popular. Estates, also known as station wagons, are popular with UK consumers. They combine impeccable driving capabilities with the simple advantage of space. Station wagons, SUVs and MPVs tend to be popular with active families.

Price statistics for AutoUncle's selection of Mercedes 300 body types

  • Mercedes 300 stationcar: 57 cars - average price £50,510
  • Mercedes 300 coupe: 15 cars - average price £41,937
  • Mercedes 300 cabriolet](https://www.autouncle.co.uk/en-gb/used-cars/Mercedes/300/b-convertible): 7 cars - average price £20,880
  • Mercedes 300 mpv: 3 cars - average price £66,648

What other cars might be worth considering?

The Mercedes 300 has multiple competitors from the same segment.

Favored alternatives for the Mercedes 300

  • BMW 420
  • Audi TT
  • Mazda MX5

With a selection of 1,572 available models on AutoUncle, the BMW 420 clearly stands out as the top alternative to the Mercedes 300. The BMW 420 has an average price tag of £16,785.

The Audi TT is another popular pick, with 918 cars currently for sale and an average price of £12,995. Another good choice for an alternative car is the Mazda MX5 with 538 cars for sale for the average price of £14,000.

Reflecting on the move to an electrically powered car?

If you are thinking about going electric then, we have some suggestions for electric vehicle alternatives in the car segment S-segment. These are:

Didn't find an electric car to your liking? Explore our entire selection of electric cars here.

All body types for Mercedes 300

All fuel types for Mercedes 300

All years for Mercedes 300

All gear types for Mercedes 300

All trim level for Mercedes 300