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: 96,173 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

This 2015 Mercedes-Benz SLK AMG Sport has covered 96,173 miles, around 41,200 more miles than is typical for its age. Priced at £5,894, it is advertised £1,160 below the AskCar estimate of £7,054. The AskCar estimate draws on 417 Mercedes-Benz SLK adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 35 days ago. Its asking price has since fallen by £1,100. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Car Vault in Welwyn Garden City. 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

Good value: £1,160 (16%) under the AskCar estimate of £7,054.

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 2015 Mercedes-Benz SLK with the 2.1 diesel engine is typically advertised at £9,600: the median of the 38 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2015 Mercedes-Benz SLK has been on sale for at least 35 days.

Price history

AskCar first saw this advert on 3 October 2026 at £6,994. Its asking price is now £5,894, £1,100 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 3 October 2026: £6,994
• 21 October 2026: £6,194
• 7 November 2026: £5,894

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 12 March 2027.

It has had 12 MOTs. The latest, on 13 March 2026, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened; rear brake disc worn, pitted or scored, but not seriously weakened; front brake pad(s) wearing thin; and 1 more.

Mileage at that test: 92,827 miles, which matches the advertised 96,173 miles.

Advertised mileage is about 41,200 miles higher than the median mileage of a 2015 Mercedes-Benz SLK on AskCar.

Similar cars

30 other 2015 Mercedes-Benz SLK AMG Sport 2.1 diesel automatic convertibles are for sale at UK dealers, from £5,999 to £12,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, silver. Mileage: 89,900 miles. Price: £7,295, £1,401 more than this car. Dealer: NWTC Haslingden in Haslingden. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-66ee7bcade74
• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, grey. Mileage: 82,200 miles. Price: £8,895, £3,001 more than this car. Dealer: Graham Mitchell in Bournemouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-456697d32480
• 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, silver. Mileage: 81,000 miles. Price: £8,795, £2,901 more than this car. Dealer: KJ Prestige in Bournemouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-ea490450cd34

• The nearest: 2015 Mercedes-Benz SLK AMG Sport, 2.1 diesel convertible, black, 41 miles from this car. Mileage: 70,000 miles. Price: £9,795, £3,901 more than this car. Dealer: The Car Shop in Strood. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-290f60afad57