2009 Mercedes-Benz SLK prices
There are 22 used 2009 Mercedes-Benz SLK cars for sale from UK dealers on AskCar, as of 11 November 2026. Typical asking price £6,500 (the median: half cost less, half cost more). The cheapest is £2,995. The middle half are priced between £5,000 and £8,000. Median mileage: about 68,000 miles.
Dealers lowered the asking price on 1 of the 22 2009 Mercedes-Benz SLK cars in the 14 days to 11 November 2026.
AskCar lists 460 used Mercedes-Benz SLK across the UK, from 361 dealerships.
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.
2009 Mercedes-Benz SLK cars for sale now, page 1 of 2
This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 19 of the 21 cars listed here meet these rules. Page 2 lists every other 2009 Mercedes-Benz SLK car, cheapest first, including the 2 the groups do not pick from.
The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 412 priced Mercedes-Benz SLK adverts on AskCar as of 11 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2009 Mercedes-Benz SLK.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.
This list leaves out 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.
Best value 2009 Mercedes-Benz SLK: priced furthest below the AskCar estimate
Their asking prices run from £3,485 to £8,500.
- 2009 Mercedes-Benz SLK 3.5 SLK350, 301 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 113,655 miles. Price: £3,485, unchanged since AskCar first saw it on 6 November 2026, 5 days ago. Good value: £939 (21%) under the AskCar estimate of £4,424. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 28 October 2027. Dealer: Assured Cars Supermarket Ltd (Birmingham) in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-3651c9931bc7
- 2009 Mercedes-Benz SLK 3.5 SLK350, 300 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 31,000 miles. Price: £6,995, unchanged since AskCar first saw it on 21 August 2026, 82 days ago. Good value: £1,321 (15%) under the AskCar estimate of £8,316. MOT: valid until 15 January 2027. Dealer: Bam Autos in Enfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-ac3b13af1b9c
- 2009 Mercedes-Benz SLK 3.0 SLK280, 228 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 74,000 miles. Price: £4,990, unchanged since AskCar first saw it on 3 November 2026, 8 days ago. Good value: £874 (14%) under the AskCar estimate of £5,864. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 23 November 2026. Dealer: Glasshoughton Car Sales in Castleford. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-942b97bf8901
- 2009 Mercedes-Benz SLK 1.8 SLK200K, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 94,000 miles. Price: £3,495, reduced by £200 from £3,695 since AskCar first saw it on 30 August 2026, 73 days ago. Good value: £553 (13%) under the AskCar estimate of £4,048. Euro 4 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 17 September 2026; ask the dealer for the current MOT. Dealer: Empire 22 Car Sales in Rochester. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-784ecc5211dd
- 2009 Mercedes-Benz SLK 1.8 SLK200K, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, grey. Mileage: 74,340 miles. Price: £4,495, unchanged since AskCar first saw it on 21 October 2026, 21 days ago. Fair price: £208 (4%) under the AskCar estimate of £4,703. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 12 August 2027. Dealer: Allwood Automobiles in Waltham Cross. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-ad222f7f9bc4
- 2009 Mercedes-Benz SLK 3.0 SLK280, 228 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 68,018 miles. Price: £5,945, unchanged since AskCar first saw it on 25 October 2026, 17 days ago. Fair price: £193 (3%) under the AskCar estimate of £6,138. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 1 October 2027. Dealer: Peter Reeves in Barrowford. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-5610f2e601b6
- 2009 Mercedes-Benz SLK 1.8 SLK200K Kompressor, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, green. Mileage: 46,000 miles. Price: £5,995, unchanged since AskCar first saw it on 1 July 2026, 133 days ago. Fair price: £126 (2%) over the AskCar estimate of £5,869. Dealer: Highland Trucks in Fort Augustus. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-7d145111408a
- 2009 Mercedes-Benz SLK 1.8 SLK200K, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, white. Mileage: 75,500 miles. Price: £5,000, reduced by £500 from £5,500 since AskCar first saw it on 21 October 2026, 21 days ago. Fair price: £339 (7%) over the AskCar estimate of £4,661. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 25 June 2027. Dealer: Convertibles and 4x4's in Bracknell. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-225c220df4a1
- 2009 Mercedes-Benz SLK 1.8 SLK200K, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, white. Mileage: 126,700 miles. Price: £3,495, unchanged since AskCar first saw it on 22 October 2026, 20 days ago. Above the going rate: £294 (9%) over the AskCar estimate of £3,201. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 13 July 2027. Dealer: Fame Cars in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-8cd27964a36b
- 2009 Mercedes-Benz SLK 3.0 SLK280, 228 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 40,000 miles. Price: £8,500, unchanged since AskCar first saw it on 30 October 2026, 12 days ago. Above the going rate: £1,161 (15%) over the AskCar estimate of £7,339. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 18 January 2027. Dealer: Car Buyers Direct in Knaresborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-f27740267d92
Cheapest 2009 Mercedes-Benz SLK: the lowest asking prices
These 10 are priced £3,485 to £5,995. They have covered 46,000 to 126,700 miles.
- 2009 Mercedes-Benz SLK 3.5 SLK350: £3,485, 113,655 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K: £3,495, 94,000 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K: £3,495, 126,700 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K: £4,495, 74,340 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 3.0 SLK280: £4,990, 74,000 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K: £5,000, 75,500 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K Kompressor, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 72,000 miles. Price: £5,750, unchanged since AskCar first saw it on 28 May 2026, 167 days ago. Above the going rate: £817 (16%) over the AskCar estimate of £4,933. MOT: valid until 25 November 2026. Dealer: LM Select in Chesterfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-a6972d2e9e0c
- 2009 Mercedes-Benz SLK 3.0 SLK280: £5,945, 68,018 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K Kompressor, 181 bhp, manual, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 71,000 miles. Price: £5,950, unchanged since AskCar first saw it on 28 May 2026, 167 days ago. Above the going rate: £1,435 (31%) over the AskCar estimate of £4,515. Dealer: LM Select in Chesterfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-bb87f0898a81
- 2009 Mercedes-Benz SLK 1.8 SLK200K Kompressor: £5,995, 46,000 miles. Listed in full under best value.
Lowest-mileage 2009 Mercedes-Benz SLK
These 10 have covered 31,000 to 68,018 miles. Their asking prices run from £5,945 to £11,495.
- 2009 Mercedes-Benz SLK 3.5 SLK350: £6,995, 31,000 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K Kompressor, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 36,049 miles. Price: £11,495, unchanged since AskCar first saw it on 28 May 2026, 167 days ago. Above the going rate: £5,272 (84%) over the AskCar estimate of £6,223. MOT: the latest record we hold ran out on 3 September 2022; ask the dealer for the current MOT. Dealer: John Kilkenny Cars in Broxburn. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-2b165d254e46
- 2009 Mercedes-Benz SLK 3.0 SLK280: £8,500, 40,000 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 1.8 SLK200K Kompressor: £5,995, 46,000 miles. Listed in full under best value.
- 2009 Mercedes-Benz SLK 3.5 SLK350, 300 bhp, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 47,000 miles. Price: £8,750, raised by £755 from £7,995 since AskCar first saw it on 21 August 2026, 82 days ago. Above the going rate: £1,441 (19%) over the AskCar estimate of £7,309. MOT: valid until 17 August 2027. Dealer: Chiltern Automotive in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-755e7eb74606
- 2009 Mercedes-Benz SLK 1.8 SLK200K, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, white. Mileage: 49,000 miles. Price: £9,990, unchanged since AskCar first saw it on 1 November 2026, 10 days ago. Above the going rate: £4,386 (78%) over the AskCar estimate of £5,604. MOT: the latest record we hold ran out on 1 June 2026; ask the dealer for the current MOT. Dealer: Karmann Classics in Ripley. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-6742dc93f2ff
- 2009 Mercedes-Benz SLK 1.8 SLK200K, 181 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 56,210 miles. Price: £6,995, reduced by £1,000 from £7,995 since AskCar first saw it on 8 September 2026, 64 days ago. Above the going rate: £1,630 (30%) over the AskCar estimate of £5,365. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 25 March 2027. Dealer: Oakwood Specialist Cars in Whitley Bay. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-508b455e03ce
- 2009 Mercedes-Benz SLK 3.0 SLK280, 228 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 58,552 miles. Price: £7,995, reduced by £1,000 from £8,995 since AskCar first saw it on 28 May 2026, 167 days ago. Above the going rate: £1,414 (21%) over the AskCar estimate of £6,581. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 23 May 2027. Dealer: Mark Hopkins Car Sales in Eastleigh. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-a7763047ec19
- 2009 Mercedes-Benz SLK 3.5 SLK350, 300 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 63,000 miles. Price: £10,650, unchanged since AskCar first saw it on 28 May 2026, 167 days ago. Above the going rate: £3,796 (55%) over the AskCar estimate of £6,854. MOT: the latest record we hold ran out on 21 December 2023; ask the dealer for the current MOT. Dealer: LM Select in Chesterfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2009-531682e5bdbb
- 2009 Mercedes-Benz SLK 3.0 SLK280: £5,945, 68,018 miles. Listed in full under best value.
Recently reduced 2009 Mercedes-Benz SLK: the biggest price reductions in the 14 days to 11 November 2026
The dealer lowered the asking price on this car in the 14 days to 11 November 2026.
- 2009 Mercedes-Benz SLK 1.8 SLK200K: £6,995, 56,210 miles. Listed in full under lowest mileage.
Newly advertised 2009 Mercedes-Benz SLK: first seen by AskCar in the 7 days to 11 November 2026
This car is the most recently advertised.
- 2009 Mercedes-Benz SLK 3.5 SLK350: £3,485, 113,655 miles. Listed in full under best value.
Page 2: every other 2009 Mercedes-Benz SLK car, cheapest first
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