2004 Mercedes-Benz SL 5.4 SL55 AMG
Price: £23,000. Above the going rate: £4,719 (25%) over the AskCar estimate of £18,281, our expected asking price for this car from its model, age, mileage and specification, drawing on 365 priced Mercedes-Benz SL adverts on AskCar as of 6 November 2026.
AskCar lists 466 used Mercedes-Benz SL from 343 UK dealerships, as of 6 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SL
- Trim: AMG
- Version: 5.4 SL55 Kompressor AMG Auto RWD Euro 4 2dr (476 bhp)
- Year: 2004
- Mileage: 90,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 5.4 litres, 476 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 324 g/km
- Emissions standard: Euro 4, ULEZ compliant
About this car
This 2004 Mercedes-Benz SL AMG has covered 90,000 miles. The dealer is asking £23,000, which is £4,719 above the AskCar estimate of £18,281. To work out the AskCar estimate, we analyse UK dealer adverts for 365 Mercedes-Benz SL cars across different ages and specifications. It first appeared in our advert records 68 days ago. The last MOT shows 92,631 miles, more than the advert. This is worth checking with the dealer. The recorded MOT expired on 19 April 2026, so ask the dealer whether it has been renewed. You can find this car at Blackheath Motor Group in London. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Above the going rate: £4,719 (25%) over the AskCar estimate of £18,281.
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 365 priced Mercedes-Benz SL adverts across different ages and specifications, as of 6 November 2026.
Time on sale
This 2004 Mercedes-Benz SL has been on sale for at least 68 days.
Price history
AskCar first saw this advert on 30 August 2026 at £23,000. 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 6 November 2026: the latest record we hold ran out on 19 April 2026; ask the dealer for the current MOT.
It has had 19 MOTs. The latest, on 12 April 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 92,631 miles. The advert says 90,000 miles, fewer than the MOT record, so ask the dealer which is right.
Advertised mileage is about 18,000 miles higher than the median mileage of a 2004 Mercedes-Benz SL on AskCar.
Similar cars
2 other 2004 Mercedes-Benz SL AMG 5.4 petrol automatic convertibles are for sale at UK dealers, from £12,999 to £14,990, as of 6 November 2026.
The 2 closest to this car in mileage:
- 2004 Mercedes-Benz SL AMG, 5.4 petrol convertible, silver. Mileage: 111,285 miles. Price: £12,999, £10,001 less than this car. Dealer: Andys Autos NW in Standish. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2004-3566bd4396fa
- 2004 Mercedes-Benz SL AMG, 5.4 petrol convertible, black. Mileage: 116,500 miles. Price: £14,990, £8,010 less than this car. Dealer: Oaklodge Cars in Willenhall. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2004-1c7e02de87dc
Browse all Mercedes-Benz SL cars for sale · 2004 Mercedes-Benz SL price guide
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Photos
2 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.