2018 Mercedes-Benz 300 prices
There are 4 used 2018 Mercedes-Benz 300 cars for sale from UK dealers on AskCar, as of 10 November 2026. The cheapest is £14,790.
Dealers lowered the asking price on more than one in five of 2018 Mercedes-Benz 300 cars: 1 of the 4 in the 14 days to 10 November 2026.
AskCar lists 42 used Mercedes-Benz 300 across the UK, from 26 dealerships.
As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
2018 Mercedes-Benz 300 cars for sale now
This page lists 2018 Mercedes-Benz 300 cars cheapest first.
The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 18 priced Mercedes-Benz 300 adverts on AskCar as of 10 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Mercedes-Benz 300.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.
- 2018 Mercedes-Benz 300, coupe, grey. Mileage: 73,887 miles. Price: £14,790, reduced by £200 from £14,990 since AskCar first saw it on 7 November 2026, 3 days ago. MOT: valid until 25 November 2026. Dealer: Herts Autos in Welwyn. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-2018-c20d88713ba1
- 2018 Mercedes-Benz 300, coupe, black. Mileage: 58,671 miles. Price: £15,850, unchanged since AskCar first saw it on 12 October 2026, 29 days ago. MOT: valid until 5 May 2027. Dealer: Argon Automotive in Kempston. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-2018-53d2493579ab
- 2018 Mercedes-Benz 300, convertible, black. Mileage: 35,000 miles. Price: £18,995, reduced by £500 from £19,495 since AskCar first saw it on 27 June 2026, 136 days ago. MOT: valid until 1 April 2027. Dealer: A1 Auto Solutions in Maidenhead. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-2018-a7c73310be94
- 2018 Mercedes-Benz 300, convertible, white. Mileage: 24,916 miles. Price: £21,990, unchanged since AskCar first saw it on 10 June 2026, 153 days ago. MOT: the latest record we hold ran out on 22 May 2026; ask the dealer for the current MOT. Dealer: K C Car Sales in Dartford. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-2018-1eeaae17ec17
Mercedes-Benz 300 near you
- In England (40 cars)
- In Wales (2 cars)
- Near Sutton (11 cars)
- Near London (10 cars)
- Near Richmond upon Thames (10 cars)
- Near Redditch (10 cars)
- Near Bromley (9 cars)
- Near Hillingdon (9 cars)
- Near Worcester (9 cars)
- Near Evesham (9 cars)
- Near Egham (8 cars)
- Near Watford (7 cars)
- Near Kidderminster (7 cars)
- Near Dartford (7 cars)
- Near Great Bookham and Fetcham (7 cars)
- Near Barnet (6 cars)
- Near Havering (6 cars)
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