2003 Mercedes-Benz SL 5.5 SL600
Price: £21,995. Above the going rate: £10,138 (85%) over the AskCar estimate of £11,857, our expected asking price for this car from its model, age, mileage and specification, drawing on 370 priced Mercedes-Benz SL adverts on AskCar as of 9 November 2026.
AskCar lists 461 used Mercedes-Benz SL from 341 UK dealerships, as of 9 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SL
- Version: 5.5 SL600 Auto RWD Euro 4 2dr (500 bhp)
- Year: 2003
- Mileage: 79,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 5.5 litres, 500 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 346 g/km
- Emissions standard: Euro 4, ULEZ compliant
About this car
This 2003 Mercedes-Benz SL has covered 79,000 miles, around 14,000 more miles than is typical for its age. The dealer is asking £21,995, which is £10,138 above the AskCar estimate of £11,857. To work out the AskCar estimate, we analyse UK dealer adverts for 370 Mercedes-Benz SL cars across different ages and specifications. We have tracked this advert for 61 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Hanworth Autos in Feltham. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 9 November 2026.
Hanworth Autos is rated 4.0 out of 5 on Google.
Price
Above the going rate: £10,138 (85%) over the AskCar estimate of £11,857.
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 370 priced Mercedes-Benz SL adverts across different ages and specifications, as of 9 November 2026.
Time on sale
This 2003 Mercedes-Benz SL has been on sale for at least 61 days.
Price history
AskCar first saw this advert on 9 September 2026 at £21,995. 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 9 November 2026: valid until 11 August 2027.
It has had 20 MOTs. The latest, on 12 August 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 78,405 miles, which matches the advertised 79,000 miles.
Advertised mileage is about 14,000 miles higher than the median mileage of a 2003 Mercedes-Benz SL on AskCar.
Browse all Mercedes-Benz SL cars for sale · 2003 Mercedes-Benz SL price guide
More like this
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- Used Mercedes-Benz SL for sale near Richmond upon Thames
Photos
29 photos of this car are on its AskCar page.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.