2020 Mercedes-Benz 300

Price: £17,995.

AskCar lists 43 used Mercedes-Benz 300 from 27 UK dealerships, as of 9 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: 300
  • Version: RWD
  • Year: 2020
  • Mileage: 68,357 miles
  • Body: Saloon, 5 seats
  • Drive: Rear-wheel drive
  • Colour: Blue

About this car

This 2020 Mercedes-Benz 300 is advertised with 68,357 miles on the clock. We first saw this car advertised 13 days ago. Its asking price has since fallen by £885. The government's MOT record matches its advertised mileage. It is advertised by SZ Motor Group in Nottingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

SZ Motor Group is rated 4.2 out of 5 on Google.

Time on sale

This 2020 Mercedes-Benz 300 has been on sale for at least 13 days.

Price history

AskCar first saw this advert on 27 October 2026 at £18,880. Its asking price is now £17,995, £885 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

  • 27 October 2026: £18,880
  • 29 October 2026: £18,795
  • 1 November 2026: £18,295
  • 4 November 2026: £17,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 17 January 2027.

It has had 4 MOTs. The latest, on 10 January 2026, passed.

Advisories at the latest test: offside front tyre has a cut but not deep enough to reach the ply or cords.

Mileage at that test: 63,401 miles, which matches the advertised 68,357 miles.

Browse all Mercedes-Benz 300 cars for sale · 2020 Mercedes-Benz 300 price guide

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Photos

82 photos of this car are on its AskCar page.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.