2018 Mercedes-Benz SLC 2.0 SLC300 AMG Line

Overview

• Make: Mercedes-Benz
• Model: SLC
• Trim: AMG Line
• Version: 2.0 SLC300 AMG Line G-Tronic RWD Euro 6 (s/s) 2dr (242 bhp)
• Year: 2018
• Mileage: 42,715 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 138 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz SLC AMG Line has covered 42,715 miles. Its asking price of £17,700 is £1,017 below the AskCar estimate of £18,717. The AskCar estimate uses UK dealer asking prices, including 187 Mercedes-Benz SLC adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 67 days ago. Its asking price has since fallen by £1,750. The government's MOT record matches its advertised mileage. It is for sale at Car Planet Barnet in New Southgate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,017 (5%) under the AskCar estimate of £18,717.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 187 priced Mercedes-Benz SLC adverts across different ages and specifications, as of 8 November 2026.

A 2018 Mercedes-Benz SLC with the 2.0 petrol engine is typically advertised at £17,000: the median of the 20 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 Mercedes-Benz SLC has been on sale for at least 67 days.

Price history

AskCar first saw this advert on 2 September 2026 at £19,450. Its asking price is now £17,700, £1,750 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 2 September 2026: £19,450
• 18 September 2026: £19,350
• 23 September 2026: £19,050
• 8 October 2026: £18,750
• 14 October 2026: £18,450
• 21 October 2026: £18,150
• 27 October 2026: £17,950
• 2 November 2026: £17,700

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 12 March 2027.

It has had 6 MOTs. The latest, on 2 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,599 miles, which matches the advertised 42,715 miles.

Advertised mileage is about 1,800 miles lower than the median mileage of a 2018 Mercedes-Benz SLC on AskCar.

Similar cars

16 other 2018 Mercedes-Benz SLC AMG Line 2.0 petrol automatic convertibles are for sale at UK dealers, from £12,995 to £21,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz SLC AMG Line, 2.0 petrol convertible, silver. Mileage: 42,000 miles. Price: £16,950, £750 less than this car. Dealer: Prestige Cars Of Sunningdale in Windlesham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slc-2018-0dced5d72929
• 2018 Mercedes-Benz SLC AMG Line, 2.0 petrol convertible, black. Mileage: 41,000 miles. Price: £15,990, £1,710 less than this car. Dealer: KCS of Surrey in Addlestone. AskCar page: https://askcar.co.uk/car/mercedes-benz-slc-2018-22cc267c51b2
• 2018 Mercedes-Benz SLC AMG Line, 2.0 petrol convertible, grey. Mileage: 45,001 miles. Price: £16,895, £805 less than this car. Dealer: Group 1 Automotive Mercedes-Benz of North Wales in Conwy. AskCar page: https://askcar.co.uk/car/mercedes-benz-slc-2018-ec7bc940c85f