2012 Mercedes-Benz SLK 2.1 SLK250 CDI BlueEfficiency

Overview

• Make: Mercedes-Benz
• Model: SLK
• Version: 2.1 SLK250 CDI BlueEfficiency G-Tronic+ RWD Euro 5 (s/s) 2dr (201 bhp)
• Year: 2012
• Mileage: 73,822 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 132 g/km
• Emissions standard: Euro 5

About this car

This 2012 Mercedes-Benz SLK is advertised with 73,822 miles, approximately 11,800 above the typical mileage for its age. The AskCar estimate for this car is £6,372. It is priced at £6,688, which is £316 above that estimate. The AskCar estimate uses 405 UK dealer adverts for the Mercedes-Benz SLK, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 33 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Convertibles and 4x4's, based in Maidenhead. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £316 (4%) over the AskCar estimate of £6,372.

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 405 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 6 November 2026.

A 2012 Mercedes-Benz SLK with the 2.1 diesel engine is typically advertised at £7,700: the median of the 24 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2012 Mercedes-Benz SLK has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 4 October 2026 at £6,500. Its asking price is now £6,688, £188 more.

Price changes recorded:

• 4 October 2026: £6,500
• 8 October 2026: £6,688

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 6 April 2027.

It has had 15 MOTs. The latest, on 7 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 71,467 miles, which matches the advertised 73,822 miles.

Advertised mileage is about 11,800 miles higher than the median mileage of a 2012 Mercedes-Benz SLK on AskCar.