2004 Mercedes-Benz SL 3.7 SL350
Price: £4,949. Good value: £867 (14%) under the AskCar estimate of £5,816, our expected asking price for this car from its model, age, mileage and specification, drawing on 372 priced Mercedes-Benz SL adverts on AskCar as of 5 November 2026.
AskCar lists 471 used Mercedes-Benz SL from 347 UK dealerships, as of 5 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SL
- Version: 3.7 SL350 Auto RWD Euro 3 2dr (245 bhp)
- Year: 2004
- Mileage: 94,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 3.7 litres, 245 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 281 g/km
- Emissions standard: Euro 3
About this car
With 94,000 miles on the clock, this 2004 Mercedes-Benz SL has done roughly 21,200 more miles than a typical 2004 Mercedes-Benz SL. The AskCar estimate for this car is £5,816. It is priced at £4,949, which is £867 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 372 Mercedes-Benz SL cars across different ages and specifications. We first recorded this car for sale 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Motorama in Welwyn Garden City. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Good value: £867 (14%) under the AskCar estimate of £5,816.
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 372 priced Mercedes-Benz SL adverts across different ages and specifications, as of 5 November 2026.
Time on sale
AskCar first saw this 2004 Mercedes-Benz SL advertised 1 day ago.
Price history
AskCar first saw this advert on 4 November 2026 at £4,949. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 30 October 2027.
It has had 23 MOTs. The latest, on 31 October 2026, passed.
Advisories at the latest test: rear brake hose has slight corrosion to ferrule.
Mileage at that test: 92,632 miles, which matches the advertised 94,000 miles.
Advertised mileage is about 21,200 miles higher than the median mileage of a 2004 Mercedes-Benz SL on AskCar.
Browse all Mercedes-Benz SL cars for sale · 2004 Mercedes-Benz SL price guide
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Photos
14 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.