2021 Mercedes-Benz 300
Price: £19,995.
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: 2021
- Mileage: 69,000 miles
- Body: Convertible
- Drive: Rear-wheel drive
- Colour: Black
About this car
This 2021 Mercedes-Benz 300 has covered 69,000 miles. We first recorded this advert 45 days ago, and its asking price has since fallen by £1,000. Its advertised mileage matches the government's MOT record. You can find this car at Springvale Car Sales in Cwmbran. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 9 November 2026.
Springvale Car Sales is rated 5.0 out of 5 on Google.
Time on sale
This 2021 Mercedes-Benz 300 has been on sale for at least 45 days.
Price history
AskCar first saw this advert on 25 September 2026 at £20,995. Its asking price is now £19,995, £1,000 less. The latest price cut was seen on 4 October 2026.
Price changes recorded:
- 25 September 2026: £20,995
- 4 October 2026: £19,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 15 April 2027.
It has had 3 MOTs. The latest, on 16 April 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 69,382 miles, which matches the advertised 69,000 miles.
Browse all Mercedes-Benz 300 cars for sale · 2021 Mercedes-Benz 300 price guide
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Photos
27 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.