2014 Mercedes-Benz SLK 2.1 SLK250 CDI AMG Sport

Overview

• Make: Mercedes-Benz
• Model: SLK
• Trim: AMG Sport
• Version: 2.1 SLK250 CDI AMG Sport G-Tronic+ RWD Euro 5 (s/s) 2dr (201 bhp)
• Year: 2014
• Mileage: 51,000 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 132 g/km
• Emissions standard: Euro 5

About this car

At 51,000 miles, this 2014 Mercedes-Benz SLK AMG Sport has covered about 18,400 fewer miles than other 2014 Mercedes-Benz SLK cars. The dealer is asking £9,250, which is £307 below the AskCar estimate of £9,557. To work out the AskCar estimate, we analyse UK dealer adverts for 417 Mercedes-Benz SLK cars across different ages and specifications. We first recorded this advert 163 days ago, and its asking price has since fallen by £50. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Cars Under 3000, based in Rayleigh. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £307 (3%) under the AskCar estimate of £9,557.

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 417 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 7 November 2026.

A 2014 Mercedes-Benz SLK with the 2.1 diesel engine is typically advertised at £8,100: the median of the 46 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2014 Mercedes-Benz SLK has been on sale for at least 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £9,300. Its asking price is now £9,250, £50 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 28 May 2026: £9,300
• 16 June 2026: £9,350
• 23 June 2026: £9,340
• 30 June 2026: £9,225
• 6 July 2026: £9,200
• 14 July 2026: £9,350
• 25 July 2026: £9,375
• 28 July 2026: £9,325
• 31 July 2026: £9,350
• 4 August 2026: £9,300
• 21 August 2026: £9,250
• 27 August 2026: £9,375
• 11 September 2026: £9,300
• 16 September 2026: £9,250
• 23 September 2026: £9,750
• 30 September 2026: £9,400
• 7 October 2026: £9,350
• 15 October 2026: £9,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 28 April 2027.

It failed its MOT on 29 April 2026 (windscreen washer provides insufficient washer liquid) and passed later the same day.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge; offside front tyre slightly damaged/cracking or perishing.

Mileage at that test: 48,777 miles, which matches the advertised 51,000 miles.

Advertised mileage is about 18,400 miles lower than the median mileage of a 2014 Mercedes-Benz SLK on AskCar.

Similar cars

35 other 2014 Mercedes-Benz SLK AMG Sport 2.1 diesel automatic convertibles are for sale at UK dealers, from £4,250 to £12,490, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2014 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, black. Mileage: 51,000 miles. Price: £9,990, £740 more than this car. Dealer: Lawson Motor Company in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2014-f67da98a213d
• 2014 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, silver. Mileage: 50,000 miles. Price: £11,995, £2,745 more than this car. Dealer: Craignairn Cars in Kirkcaldy. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2014-e4a2d2a19b1a
• 2014 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, black. Mileage: 49,803 miles. Price: £10,000, £750 more than this car. Dealer: Alpino Cars in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2014-10a86d7edb81

• The nearest: 2014 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, silver, 26 miles from this car. Mileage: 35,000 miles. Price: £12,490, £3,240 more than this car. Dealer: Northover Cars in Whitstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2014-4d1d6712fbbf