Used (2020) Mercedes CLS400 AMG Line Premium Plus 340 HP | Good price
- 4Matic AMG Line Premium + 4dr
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Good price
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- 4Matic AMG Line Premium + 4dr
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Used Mercedes CLS400
Factors that affect the appreciation of a Mercedes CLS400:
- Mileage
- Age of the vehicle
- Number of previous owners
- Accidents or damage history
- Trim level, equipment, and options
Appreciation is an important part of calculating the total value of owning a Mercedes CLS400. In addition to the monthly appreciation of £0, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly value.
Model year | Price range* | Avg. Price | Depreciation | Cars for sale |
|---|---|---|---|---|
2021 Mercedes CLS400 | £27,599 - £34,066 | £32,080 | - | < 10 |
2020 Mercedes CLS400 | £27,490 - £32,995 | £30,145 | - | < 10 |
2019 Mercedes CLS400 | £22,695 - £35,490 | £27,447 | - | 11 |
2015 Mercedes CLS400 | £15,250 - £16,790 | £15,884 | - | < 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
Last updated: 14 December 2025
Variant | Price range* | Avg. Price | Depreciation | Cars for sale |
|---|---|---|---|---|
Mercedes CLS400 AMG Line Premium Plus | £22,695 - £35,490 | £27,847 | - | < 10 |
💰 The budget choice Mercedes CLS400 AMG line | £15,250 - £34,066 | £24,974 | -£940 | 17 |
*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: 14 December 2025
The AMG line is the cheapest entry point with an average price of £24,974.
There are the most AMG line for sale right now (17), which gives you the most options to choose from.
The AMG line has held its price stable with minimal loss in value over the past year (-£940).
Month | Average market price | Lowest market price | Highest market price | Calculation method |
|---|---|---|---|---|
| 2025 - September | £27,280 | £24,160 | £30,380 | Estimate |
| 2025 - October | £27,040↘ | £25,040 | £29,020 | Estimate |
| 2025 - November | £27,280↗ | £24,440 | £30,120 | Estimate |
| 2026 - January | £27,260↘ | - | - | Forecast |
| 2026 - February | £27,260→ | - | - | Forecast |
| 2026 - March | £27,260→ | - | - | Forecast |
| 2026 - April | £27,260→ | - | - | Forecast |
| 2026 - May | £27,260→ | - | - | Forecast |
All estimates and forecasts are based on actual market data
Last updated: 14 December 2025
Average Monthly Depreciation
A summary of the past 12 and an estimation of the next 6 months.
Past 12 months
Next 6 months
Price checked by AutoUncle
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Are you considering purchasing a used executive car? Then the Mercedes CLS400 is a popular choice. AutoUncle has 20 used Mercedes CLS400s for sale in UK sourced from different dealership websites and online marketplaces.
A used Mercedes CLS400 costs between £15,250 for the cheapest variant and £34,489 for the most expensive model.
The cost of a pre-owned Mercedes CLS400 is determined by several factors. Key contributing elements include year of production, engine capacity and performance, fuel efficiency of the car, vehicle mileage not to mention trim level.
For example, a newer model with fewer miles recorded, or a more luxurious variant with a powerful engine, typically commands a higher price than an earlier version with less equipment and higher mileage.
The Mercedes CLS400 is offered in two separate equipment configurations:
While evaluating the cost of a pre-owned Mercedes CLS400, it's crucial to compare vehicles with identical engines and equipment. If not, you might draw an inaccurate conclusion about which car to acquire.
The number one fuel selection for the Mercedes CLS400 is diesel.
Price difference between the most popular fuel options for Mercedes CLS400:
We emphasize the importance of considering your driving habits before opting for a particular fuel type. Do you primarily use your car to commute, and is the distance 35 miles or fewer each way?
For short trips, range is rarely a limitation, so electric, plug-in hybrid or petrol can be fine. For longer daily journeys, consider an electric car, especially if you have the option to 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. Despite the rise of electric cars, diesel can still be useful for long journeys and lack of charging options. Note that there are countries where diesel engines with heavy emissions are forbidden from entering city areas.
The Mercedes CLS400 is available in both coupe and sedan body styles, with the coupe being the more popular choice. Style and sporty driving take centre stage in a coupe, and this body type tends to have a tighter and stronger chassis than, for example, a sedan or an SUV. The model is best suited for people without children and others who travel light. It is usually more expensive than equivalent sedan or hatchback sister models.
The Mercedes CLS400 faces stiff competition within its segment.
Alternative cars to the Mercedes CLS400
The Audi A6 is a great alternative to the Mercedes CLS400. There are 1,828 of this car for sale in the UK right now and the average selling price is £19,999.
The next best alternative car is the BMW 520 with 1,607 cars listed for sale featuring an average selling price of £19,999. The Vauxhall Insignia is the third best alternative. There are currently 1,433 of this car for sale in the UK with an average sales price of £5,995.
Considering something greener than the Mercedes CLS400? Check out these electric alternatives from the same segment::
Still on the hunt for the right electric car? Explore our entire selection of electric cars here.