# Mercedes-Benz 300 UK sold prices and market trends

Updated 20 Oct 2026. Source: Autotrender, https://autotrender.co.uk/make/mercedes-benz/model/300

## Summary

As of 20 Oct 2026, there are 9 used Mercedes-Benz 300 cars for sale on Autotrader UK, with a median asking price of £15,995. In the last 30 days, 2 Mercedes-Benz 300 cars have sold. 1 new Mercedes-Benz 300 listings appeared over the same period, so supply is tightening.

In August 2026, the median sold price for a used Mercedes-Benz 300 was £22,998 (6 sales). 6 cars sold in August 2026 compared with 4 in July 2026. The number for sale fell 38.5% to 8 by the end of August 2026. Over the last 90 days the median sold price was £22,925, up 202.6% on the previous 90 days (£7,575).

Autotrender has recorded 19 Mercedes-Benz 300 sales on Autotrader since 27 May 2026, with final asking prices from £1,975 to £109,950 and a median of £20,500. The typical Mercedes-Benz 300 took 47 days to sell.

## Monthly statistics

Prices are GBP medians. "Sold" is the number of Mercedes-Benz 300 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 | £8,945 | £7,287 | 6 | 26 | 5 | 11 |
| July 2026 | £9,000 | — | 4 | — | 6 | 13 |
| August 2026 | £16,990 | £22,998 | 6 | 60 | 1 | 8 |
| September 2026 | £24,991 | — | 1 | — | 3 | 10 |
| October 2026 (so far) | £7,950 | — | 2 | — | 1 | 9 |

## Questions and answers

### What is the average used Mercedes-Benz 300 price in the UK?

The median asking price for a used Mercedes-Benz 300 on Autotrader UK is £15,995, across 9 cars for sale as of 20 Oct 2026. Across all 19 recorded sales the median sold price is £20,500.

### Are used Mercedes-Benz 300 prices going up or down?

Over the last 90 days the median Mercedes-Benz 300 sold price was £22,925, up 202.6% on the previous 90 days (£7,575).

### How long does a used Mercedes-Benz 300 take to sell?

The median used Mercedes-Benz 300 sells within 47 days of being listed on Autotrader, based on 19 recorded sales.

### How many used Mercedes-Benz 300 cars are for sale in the UK?

There are 9 used Mercedes-Benz 300 cars for sale on Autotrader UK as of 20 Oct 2026. Supply was down 38.5% in August 2026 compared with the end of July 2026 (13). In the last 30 days 1 were newly listed and 2 sold.

### How does Autotrender work out Mercedes-Benz 300 sold prices?

Autotrender records every Mercedes-Benz listing on Autotrader UK twice a day (since 27 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/300.