2015 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: 2015
• Mileage: 49,439 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Red
• CO2: 132 g/km
• Emissions standard: Euro 5

About this car

With 49,439 miles on the clock, this 2015 Mercedes-Benz SLK AMG Sport has done roughly 3,700 fewer miles than a typical 2015 Mercedes-Benz SLK. Priced at £10,295, it is advertised £400 above the AskCar estimate of £9,895. The AskCar estimate uses UK dealer asking prices, including 407 Mercedes-Benz SLK adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 45 days ago, the asking price has dropped by £104. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Athena Automotive in Bicester. 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

Price

Fair price: £400 (4%) over the AskCar estimate of £9,895.

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 407 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 9 November 2026.

A 2015 Mercedes-Benz SLK with the 2.1 diesel engine is typically advertised at £9,800: the median of the 36 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2015 Mercedes-Benz SLK has been on sale for at least 45 days.

Price history

AskCar first saw this advert on 25 September 2026 at £10,399. Its asking price is now £10,295, £104 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 25 September 2026: £10,399
• 12 October 2026: £9,999
• 17 October 2026: £9,750
• 22 October 2026: £9,495
• 6 November 2026: £10,295

Mileage and MOT

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

It has had 11 MOTs. The latest, on 10 September 2026, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge 2-3mm + inner sidewall damaged; nearside rear tyre worn close to legal limit/worn on edge 2-3mm; offside front tyre worn close to legal limit/worn on edge smooth on edges - very urgent.

Mileage at that test: 49,417 miles, which matches the advertised 49,439 miles.

Advertised mileage is about 3,700 miles lower than the median mileage of a 2015 Mercedes-Benz SLK on AskCar.

Similar cars

28 other 2015 Mercedes-Benz SLK AMG Sport 2.1 diesel automatic convertibles are for sale at UK dealers, from £5,894 to £12,995, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, white. Mileage: 51,000 miles. Price: £10,500, £205 more than this car. Dealer: Culraven Car Sales in Wigan. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-7267d2f40e41
• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, black. Mileage: 51,200 miles. Price: £10,995, £700 more than this car. Dealer: Mount Vernon Motors in Glasgow. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-1e24baa48f2a
• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, silver. Mileage: 47,000 miles. Price: £9,990, £305 less than this car. Dealer: Stratus in Basingstoke. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-57f1bd755aa1

• The nearest: 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, white, 39 miles from this car. Mileage: 23,096 miles. Price: £12,995, £2,700 more than this car. Dealer: Project Torque in Solihull. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-66f44daa64ee