# Mercedes-Benz SLK UK sold prices and market trends

Updated 19 Oct 2026. Source: Autotrender, https://autotrender.co.uk/make/mercedes-benz/model/slk

## Summary

As of 19 Oct 2026, there are 486 used Mercedes-Benz SLK cars for sale on Autotrader UK, with a median asking price of £6,995. In the last 30 days, 343 Mercedes-Benz SLK cars have sold at a median price of £5,997, taking a median of 24 days to sell. 340 new Mercedes-Benz SLK listings appeared over the same period, so supply is tightening.

In October 2026, the median sold price for a used Mercedes-Benz SLK was £6,370, up 6.3% on September 2026's £5,995 (214 sales). Asking prices were up 7.6% over the same period, at a median of £6,995. 215 cars sold in October 2026 compared with 387 in September 2026. The number for sale fell 1.6% to 486 by the end of October 2026. Over the last 90 days the median sold price was £5,999, down 4.0% on the previous 90 days (£6,250).

Autotrender has recorded 2,261 Mercedes-Benz SLK sales on Autotrader since 26 May 2026, with final asking prices from £75 to £35,995 and a median of £6,025. The typical Mercedes-Benz SLK took 22 days to sell.

## Monthly statistics

Prices are GBP medians. "Sold" is the number of Mercedes-Benz SLK adverts removed from Autotrader that month.

| Month | Median asking price | Median sold price | Sold | Median days to sell | New listings | For sale at month end |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| June 2026 | £5,995 | £6,250 | 540 | 22 | 539 | 595 |
| July 2026 | £5,997 | £6,390 | 579 | 22 | 535 | 551 |
| August 2026 | £5,999 | £5,995 | 513 | 19 | 453 | 491 |
| September 2026 | £6,499 | £5,995 | 387 | 22 | 390 | 494 |
| October 2026 (so far) | £6,995 | £6,370 | 215 | 25 | 207 | 486 |

## Questions and answers

### What is the average used Mercedes-Benz SLK price in the UK?

The median asking price for a used Mercedes-Benz SLK on Autotrader UK is £6,995, across 486 cars for sale as of 19 Oct 2026. Cars that sold in the last 30 days went for a median of £5,997. Across all 2,258 recorded sales the median sold price is £6,025.

### Are used Mercedes-Benz SLK prices going up or down?

Mercedes-Benz SLK sold prices were up 6.3% month on month: the median went from £5,995 in September 2026 to £6,370 in October 2026. Asking prices were up 7.6% over the same period.

### How long does a used Mercedes-Benz SLK take to sell?

The median used Mercedes-Benz SLK sells within 22 days of being listed on Autotrader, based on 2,261 recorded sales. Cars that sold in the last 30 days took a median of 24 days.

### How many used Mercedes-Benz SLK cars are for sale in the UK?

There are 486 used Mercedes-Benz SLK cars for sale on Autotrader UK as of 19 Oct 2026. Supply was down 1.6% in October 2026 compared with the end of September 2026 (494). In the last 30 days 340 were newly listed and 343 sold.

### How does Autotrender work out Mercedes-Benz SLK sold prices?

Autotrender records every Mercedes-Benz listing on Autotrader UK twice a day (since 26 May 2026). A car counts as sold when its advert is removed, and its sold price is the final asking price before it came off; days to sell run from the advert's listing date to its removal. Medians are used throughout, and months with fewer than 5 sales are not used to call a trend.

## About this data

Autotrender (https://autotrender.co.uk) tracks used car listings on Autotrader UK and publishes sold prices, price history and supply trends by make and model. Figures on this page are recomputed after every scan. Licence: CC BY-NC 4.0; please cite Autotrender and link to https://autotrender.co.uk/make/mercedes-benz/model/slk.