Mercedes SL400 used • 26 cars price-checked by AutoUncle

Market overviewPrices range from £16,995 to £43,816 across all listings

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How much does the Mercedes SL400 depreciate?

Used Mercedes SL400

A used Mercedes SL400 (2016) model loses about £68 per month in value.


Factors that affect the depreciation of a Mercedes SL400:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a Mercedes SL400. In addition to the monthly depreciation of £68, 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 SL400 cost? Prices, ratings and depreciation by model year

How much does a used Mercedes SL400 cost? Prices, ratings and depreciation by model year

Model year

Typical price range*

Average price

Price trend / depreciation
(last 12 months)

Cars for sale

2020 Mercedes SL400

£43,816 - £45,730£44,773-2

2019 Mercedes SL400

£30,695 - £33,499£32,097-2

2018 Mercedes SL400

- - ----

2017 Mercedes SL400

£22,495 - £33,990£30,677-5

2016 Mercedes SL400

£21,489 - £31,995£26,379-£8209

2015 Mercedes SL400

£15,000 - £24,995£19,986-7

2014 Mercedes SL400

£20,995 - £20,995£20,995-1

*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

Mercedes SL400 (model year 2016) - Price development for the last 12 months and price projection for the next 6 months (November 2024 - April 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2024 - November
£27,100
£23,500£30,720
Estimate
2024 - December
£27,060
£23,420£30,700
Estimate
2025 - January
£27,020
£23,400£30,640
Estimate
2025 - February
£27,800
£24,420£31,200
Estimate
2025 - March
£26,020
£23,000£29,040
Estimate
2025 - April
£26,540
£23,760£29,320
Estimate
2025 - May
£25,980
£23,760£28,200
Estimate
2025 - June
£26,120
£23,860£28,360
Estimate
2025 - July
£26,160
£23,820£28,500
Estimate
2025 - August
£26,200
£23,760£28,640
Estimate
2025 - September
£26,240
£23,720£28,760
Estimate
2025 - October
£26,280
£23,660£28,900
Estimate
2025 - December
£26,400
--
Forecast
2026 - January
£26,460
--
Forecast
2026 - February
£26,520
--
Forecast
2026 - March
£26,580
--
Forecast
2026 - April
£26,640
--
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

-£820

Next 6 months

£360

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Interested in finding a great deal on a used Mercedes SL400?

Are you considering purchasing a used sports car? Then the Mercedes SL400 is an excellent choice. AutoUncle present 24 options sourced from different dealership websites and online marketplaces.

How much does a used Mercedes SL400 cost?

Currently, the prices for a pre-owned Mercedes SL400 start at £16,995 and go up to £44,950.

The German car is being offered at different prices relying on mainly five factors: year, engine size and performance, fuel economy, number of miles as well as trim level.

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 versions of the Mercedes SL400 are available based on equipment?

The Mercedes SL400 is offered in a varied array of trim editions, addressing different driving styles and essentials. The most popular ones are:

As you considers the cost of a used Mercedes SL400, it's fundamental to examine vehicles sharing identical trim level. If not, you might draw an inaccurate conclusion about which car to buy.

What fuel types are available for the Mercedes SL400?

The predominant fuel variant for the Mercedes SL400 is petrol.

When contemplating fuel type choices, reflecting on your driving habits is important. What's your typical weekly driving mileage? Are your trips usually short or do they cover longer distances?

If you primarily drive short distances, electric, plug-in hybrid or petrol is typically a good fit. For longer commutes, a newer electric car is a good alternative - especially with access to charging. For longer daily commutes, a modern electric car is often suitable - especially if you can charge at home or at work. Despite the rise of electric cars, diesel can still be useful for long journeys and lack of charging options. Note that in some countries, high-emission diesel engines have been banned from entering certain cities.

What body types is the Mercedes SL400 available in?

On AutoUncle, the Mercedes SL400 is exclusively offered in the cabriolet body style. 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.

Curious about what other alternatives are available?

The Mercedes SL400 faces stiff competition within its segment.

Most popular choices as an alternative to the Mercedes SL400

  • BMW 420
  • Audi TT
  • Mazda MX5

With a current inventory of 1,733 available models on AutoUncle, the BMW 420 stands out as the top alternative to the Mercedes SL400. On average, the BMW 420 costs £17,750.

The next best alternative car is the Audi TT with 1,042 cars currently for sale with an average sales price of £13,990. Another recommended alternative is Mazda MX5 with 689 cars for sale an average price tag of £14,695.

Thinking about investing in an electric vehicle?

When considering an electric vehicle that matches the calibre of the Mercedes SL400, here are some few suggestions:

Can't seem to locate an electric car that matches your needs? View our complete collection of electric cars here.

All body types for Mercedes SL400

All fuel types for Mercedes SL400

All years for Mercedes SL400

All gear types for Mercedes SL400

All trim level for Mercedes SL400