2004 Mercedes-Benz SL 3.7 SL350
Price: £4,999. Good value: £1,198 (19%) under the AskCar estimate of £6,197, our expected asking price for this car from its model, age, mileage and specification, drawing on 374 priced Mercedes-Benz SL adverts on AskCar as of 2 November 2026.
AskCar lists 475 used Mercedes-Benz SL from 350 UK dealerships, as of 2 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SL
- Version: 3.7 Auto RWD 2dr (245 bhp)
- Year: 2004
- Mileage: 96,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors
- Engine: 3.7 litres, 245 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Silver
- CO2: 281 g/km
About this car
This 2004 Mercedes-Benz SL has covered 96,000 miles, around 24,000 more miles than is typical for its age. Its asking price of £4,999 is £1,198 below the AskCar estimate of £6,197. The AskCar estimate uses 374 UK dealer adverts for the Mercedes-Benz SL, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 38 days ago, the asking price has dropped by £1,000. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at ACE Motor Vehicles in Durham. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £1,198 (19%) under the AskCar estimate of £6,197.
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 374 priced Mercedes-Benz SL adverts across different ages and specifications, as of 2 November 2026.
Time on sale
This 2004 Mercedes-Benz SL has been on sale for at least 38 days.
Price history
AskCar first saw this advert on 25 September 2026 at £5,999. Its asking price is now £4,999, £1,000 less. The latest price cut was seen on 30 October 2026.
Price changes recorded:
- 25 September 2026: £5,999
- 27 October 2026: £5,499
- 30 October 2026: £4,999
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 25 February 2027.
It failed its MOT on 21 February 2026 (offside front headlamp light intensity severely reduced; nearside rear shock absorbers has a serious fluid leak) and passed 5 days later, on 26 February 2026.
Advisories at the latest test: offside front brake pipe corroded, covered in grease or other material.
Mileage at that test: 96,059 miles, which matches the advertised 96,000 miles.
Advertised mileage is about 24,000 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
Photos
19 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.