2009 Mercedes-Benz SLK 3.5 SLK350
Price: £8,750. Above the going rate: £1,441 (19%) over the AskCar estimate of £7,309, our expected asking price for this car from its model, age, mileage and specification, drawing on 412 priced Mercedes-Benz SLK adverts on AskCar as of 11 November 2026.
AskCar lists 460 used Mercedes-Benz SLK from 361 UK dealerships, as of 11 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SLK
- Version: 3.5 RWD 2dr (300 bhp)
- Year: 2009
- Mileage: 47,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 3.5 litres, 300 bhp
- Drive: Rear-wheel drive
- Colour: Silver
- CO2: 219 g/km
About this car
This 2009 Mercedes-Benz SLK has covered 47,000 miles, around 21,000 fewer miles than is typical for its age. The dealer is asking £8,750, which is £1,441 above the AskCar estimate of £7,309. To work out the AskCar estimate, we analyse UK dealer adverts for 412 Mercedes-Benz SLK cars across different ages and specifications. This car was first seen in our listings data 82 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Chiltern Automotive in Buckinghamshire. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 11 November 2026.
Chiltern Automotive is rated 5.0 out of 5 on Google.
Price
Above the going rate: £1,441 (19%) over the AskCar estimate of £7,309.
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 412 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 11 November 2026.
Time on sale
This 2009 Mercedes-Benz SLK has been on sale for at least 82 days.
Price history
AskCar first saw this advert on 21 August 2026 at £7,995. Its asking price is now £8,750, £755 more.
Price changes recorded:
- 21 August 2026: £7,995
- 30 August 2026: £8,995
- 20 September 2026: £8,750
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 11 November 2026: valid until 17 August 2027.
It has had 16 MOTs. The latest, on 18 August 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 46,968 miles, which matches the advertised 47,000 miles.
Advertised mileage is about 21,000 miles lower than the median mileage of a 2009 Mercedes-Benz SLK on AskCar.
Browse all Mercedes-Benz SLK cars for sale · 2009 Mercedes-Benz SLK price guide
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Photos
41 photos of this car are on its AskCar page.
As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.