2004 Mercedes-Benz SLK 3.5 SLK350
Price: £4,795. Good value: £460 (8%) under the AskCar estimate of £5,255, our expected asking price for this car from its model, age, mileage and specification, drawing on 405 priced Mercedes-Benz SLK adverts on AskCar as of 6 November 2026.
AskCar lists 459 used Mercedes-Benz SLK from 361 UK dealerships, as of 6 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SLK
- Version: 3.5 SLK350 Auto RWD Euro 3 2dr (272 bhp)
- Year: 2004
- Mileage: 65,244 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 3.5 litres, 272 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 242 g/km
- Emissions standard: Euro 3
About this car
The advertised mileage for this 2004 Mercedes-Benz SLK is 65,244 miles. Its asking price of £4,795 is £460 below the AskCar estimate of £5,255. The AskCar estimate uses 405 UK dealer adverts for the Mercedes-Benz SLK, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 117 days ago, the asking price has dropped by £1,200. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Stevenson's Trade Centre in Chorley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Good value: £460 (8%) under the AskCar estimate of £5,255.
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.
Time on sale
This 2004 Mercedes-Benz SLK has been on sale for at least 117 days.
Price history
AskCar first saw this advert on 12 July 2026 at £5,995. Its asking price is now £4,795, £1,200 less. The latest price cut was seen on 21 October 2026.
Price changes recorded:
- 12 July 2026: £5,995
- 27 July 2026: £5,495
- 28 September 2026: £4,995
- 16 October 2026: £4,895
- 21 October 2026: £4,795
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 20 May 2027.
It has had 23 MOTs. The latest, on 21 May 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 65,239 miles, which matches the advertised 65,244 miles.
Browse all Mercedes-Benz SLK cars for sale · 2004 Mercedes-Benz SLK price guide
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Photos
72 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.