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: 59,512 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 132 g/km
• Emissions standard: Euro 5

About this car

This 2012 Mercedes-Benz SLK is advertised with 59,512 miles, approximately 2,500 below the typical mileage for its age. The dealer is asking £6,495, which is £594 below the AskCar estimate of £7,089. To work out the AskCar estimate, we analyse UK dealer adverts for 405 Mercedes-Benz SLK cars across different ages and specifications. The asking price is now £400 lower than when we first recorded the advert 148 days ago. Our latest MOT record expired on 15 December 2025. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at A & A Auto Sales in Peterborough. 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

Good value: £594 (8%) under the AskCar estimate of £7,089.

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 148 days.

Price history

AskCar first saw this advert on 11 June 2026 at £6,895. Its asking price is now £6,495, £400 less. The latest price cut was seen on 4 August 2026.

Price changes recorded:

• 6 July 2026: £6,895
• 4 August 2026: £6,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 15 December 2025; ask the dealer for the current MOT.

It has had 12 MOTs. The latest, on 16 December 2024, passed.

There were no advisories at the latest test.

Mileage at that test: 57,835 miles, which matches the advertised 59,512 miles.

Advertised mileage is about 2,500 miles lower than the median mileage of a 2012 Mercedes-Benz SLK on AskCar.