Year
£
Km
Gearbox

Mercedes 300 used – 185 cars for sale with price evaluation

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Expensive

How much does the Mercedes 300 depreciate?

Used Mercedes 300

For a used Mercedes 300 model, the car loses about £57 per month in value.


Higher mileage increases depreciation, so keeping the Mercedes within the average range helps control this. Regular upkeep is vital, a well-maintained 300 with a service history will depreciate slower than a neglected one.


With an average, estimated monthly depreciation of £57, the annual total is around £687.

Market price development for 2026 Mercedes 300 (May 2025 - December 2025)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Market price range

Calculation method

2025 - May
£61,229
£58,258£64,201£58,258 - £64,201
Estimate
2025 - June
£61,916
£57,886£65,947£57,886 - £65,947
Estimate
2025 - August
£63,289
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Forecast
2025 - September
£63,976
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Forecast
2025 - October
£64,663
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Forecast
2025 - November
£65,349
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Forecast
2025 - December
£66,036
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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

£687

Next 6 months

£4,120

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Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

On the hunt for a used Mercedes 300?

Are you considering buying a used sports car? Then the Mercedes 300 is a great decision. There are 68 used Mercedes 300 currently available on AutoUncle, each one gathered from an online marketplace or dealership website.

What is the cost of a pre-owned Mercedes 300?

The price of a used Mercedes 300 ranges from £6,990 for the cheapest model to £67,484 for the latest and most well-equipped model.

The price for the German car is dictated by five main factors: the year of manufacture, engine size and power, fuel efficiency, how far the car has travelled as well as the vehicle's equipment variant.

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 versions of the Mercedes 300 are available based on equipment?

The most popular equipment variants for the Mercedes 300 are:

When assessing the price tags of second-hand Mercedes 300 cars, it is important that you exclusively compare with the sale prices of cars with a similar equipment variant and engine size. If you don't, you could end up reaching a wrong decision on which car to buy.

What are the most popular fuel types for the Mercedes 300?

For the Mercedes 300, benzin is the most favored fuel. .

Mercedes 300 fuel choices:

What body options does the Mercedes 300 have?

Stationcar is the preferred body type amongst drivers of the Mercedes 300. Estate cars, also known as station wagons, are highly sought-after in today's market. They meld superior driving dynamics with abundant space, making them a favourite choice among active families, alongside SUVs and MPVs.

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

Which cars are popular alternatives to Mercedes 300?

The Mercedes 300 faces stiff competition within its segment.

Most popular choices as an alternative to the Mercedes 300

  • BMW 420
  • Audi TT
  • Mazda MX5

For those exploring alternatives to the Mercedes 300, the BMW 420 distinguishes itself as the leading option. It has an average sale price of £17,200 and right now you can find 1,352 for sale on AutoUncle.

The Audi TT ranks as the next favoured car, boasting an impressive 818 listings currently available for purchase with an average sales price of £12,495. The Mazda MX5 holds its ground as the third most attractive option with an average sales price of £13,499 and 476 units presently on offer in the UK.

Pondering the adoption of an electric car?

The Mercedes 300 hasn’t transitioned to electric. But should you be in the market for an electric vehicle within the car segment S-segment just like the Mercedes 300, here are some options for you:

Still searching for the ideal electric vehicle? Explore our entire selection of electric cars here.

All body types for Mercedes 300

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