Mercedes SLK250 Valuation: 114 used car listings analysed

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How much does the Mercedes SLK250 depreciate?

Used Mercedes SLK250

A used Mercedes SLK250 (2014) model loses about £47 per month in value.


Factors that affect the depreciation of a Mercedes SLK250:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a Mercedes SLK250. In addition to the monthly depreciation of £47, 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 SLK250 cost? Prices, ratings and depreciation by model year

How much does a used Mercedes SLK250 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2016 Mercedes SLK250

£10,995 - £11,995£11,62650,800 miles-< 10

2015 Mercedes SLK250

£5,997 - £13,250£9,98268,300 miles-£56020

2014 Mercedes SLK250

£6,395 - £14,495£9,14778,000 miles-£56031

2013 Mercedes SLK250

£6,495 - £9,995£8,03482,300 miles-£4028

2012 Mercedes SLK250

£4,995 - £10,495£7,31867,400 miles-£26026

2011 Mercedes SLK250

£5,495 - £8,995£7,27868,600 miles-< 10

*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

Comparison of Mercedes SLK250 variants and prices

Below you can compare prices and depreciation for the 1 most popular Mercedes SLK250 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Mercedes SLK250 variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

💰 The budget choice

Mercedes SLK250 AMG

£5,995 - £13,250£8,86071,900 miles-£46093

*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

Which variant should you choose?

💰 The budget choice

The AMG is the cheapest entry point with an average price of £8,860.

🏆 The most popular

There are the most AMG for sale right now (93), which gives you the most options to choose from.

📈 The best value

The AMG has held its price stable with minimal loss in value over the past year (-£460).

Mercedes SLK250 (model year 2014) - Price development for the last 12 months and price projection for the next 6 months (June 2025 - November 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - June
£9,380
£8,360£10,380
Estimate
2025 - July
£9,240
£8,400£10,080
Estimate
2025 - August
£9,180
£8,300£10,060
Estimate
2025 - September
£9,040
£8,260£9,840
Estimate
2025 - October
£8,880
£8,020£9,720
Estimate
2025 - November
£8,640
£7,700£9,560
Estimate
2025 - December
£8,580
£7,620£9,540
Estimate
2026 - January
£8,980
£7,840£10,100
Estimate
2026 - February
£8,900
£7,980£9,820
Estimate
2026 - March
£8,720
£7,580£9,860
Estimate
2026 - April
£8,860
£7,260£10,460
Estimate
2026 - May
£8,820
£7,600£10,020
Estimate
2026 - July
£8,900
--
Forecast
2026 - August
£8,960
--
Forecast
2026 - September
£9,000
--
Forecast
2026 - October
£9,040
--
Forecast
2026 - November
£9,080
--
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

-£560

Next 6 months

£260

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Price checked by AutoUncle

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Thinking about buying a used Mercedes SLK250?

Are you considering buying a used sports car? Look no further than the Mercedes SLK250 - an excellent choice! AutoUncle has 122 used Mercedes SLK250s for sale in UK compiled from numerous dealership websites and online marketplaces.

What is the used car price of the Mercedes SLK250?

A used Mercedes SLK250 costs between £5,950 for the cheapest variant and £13,250 for the most expensive model.

The cost of a pre-owned Mercedes SLK250 is determined by several factors. Key contributing elements include what year the car is from, engine capacity and power, the car's fuel consumption, vehicle mileage not to mention the level of equipment in the car.

For example, a newer model with low mileage or a premium version equipped with a high-performance engine generally demands a higher price than a car from an older model year, with higher mileage and no optional extras.

What equipment packages does the Mercedes SLK250 offer?

As you examine the price of a used Mercedes SLK250, it's necessary to compare vehicles with identical engines and equipment. Otherwise, you might draw an inaccurate conclusion about which car to purchase.

Can I get the Mercedes SLK250 with different fuel types?

The leading fuel choice for the Mercedes SLK250 is diesel.

Price difference between the most popular fuel options for Mercedes SLK250:

We highly recommend thinking about your driving habits before deciding between the different fuel types. On a regular week, how far do you drive? Do you engage in many brief trips, or are your drives generally longer in distance?

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. For longer daily commutes, a modern electric car is often suitable - especially if you can charge at home or at work. Diesel cars can still make sense if you drive very far and don't have access to charging. Consider that in many countries, cities have banned the entry of diesel engines with high emissions.

In which different body variants are the Mercedes SLK250 available?

The Mercedes SLK250 is only available in the cabriolet body type in the UK. Cabrios and convertibles give the driving experience a new dimension. Thanks to their excellent hoods and weather gear, most models are fit for year-round use these days. Thickener is applied underneath the car to strengthen the chassis in lieu of a roof, which means that convertibles have a tendency to be heavier than normal cars.

What other cars are there in the same category as Mercedes SLK250?

The Mercedes SLK250 has various competitors from the same segment.

Top competitors to the Mercedes SLK250

  • BMW 420
  • Audi TT
  • Mazda MX5

With a selection of 1,491 available models on AutoUncle, the BMW 420 clearly stands out as the top alternative to the Mercedes SLK250. The BMW 420 has an average price tag of £18,198.

Another popular choice in this class is the Audi TT with 949 cars on the market and an average price tag of £13,199. Another recommended alternative is Mazda MX5 with 556 cars for sale an average price tag of £15,000.

Considering more environmentally sound choices to the Mercedes SLK250?

Not fixed on the Mercedes SLK250? Here are some electric options in the same segment::

Didn't find an electric car to your liking? Browse our full range of electric cars here.

Used Mercedes SLK250 by fuel

See Mercedes