2004 Mercedes-Benz SLK 3.5 SLK350

Overview

• Make: Mercedes-Benz
• Model: SLK
• Version: 3.5 SLK350 Auto RWD Euro 3 2dr (272 bhp)
• Year: 2004
• Mileage: 73,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 3.5 litres, 272 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 242 g/km
• Emissions standard: Euro 3

About this car

At 73,000 miles, this 2004 Mercedes-Benz SLK has covered about 7,800 more miles than other 2004 Mercedes-Benz SLK cars. Its asking price of £5,000 is £42 above the AskCar estimate of £4,958. To work out the AskCar estimate, we analyse UK dealer adverts for 405 Mercedes-Benz SLK cars across different ages and specifications. Since we first spotted the advert 59 days ago, the asking price has dropped by £1,000. You can find this car at W4 Car Sales in London. 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: £42 (under 1%) over the AskCar estimate of £4,958.

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 59 days.

Price history

AskCar first saw this advert on 8 September 2026 at £6,000. Its asking price is now £5,000, £1,000 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 8 September 2026: £6,000
• 16 October 2026: £5,000

Mileage and MOT

Advertised mileage is about 7,800 miles higher than the median mileage of a 2004 Mercedes-Benz SLK on AskCar.