2003 Mercedes-Benz SL 5.0 SL500

Overview

• Make: Mercedes-Benz
• Model: SL
• Version: 5.0 SL500 Auto RWD Euro 3 2dr (306 bhp)
• Year: 2003
• Mileage: 82,500 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 5.0 litres, 306 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 292 g/km
• Emissions standard: Euro 3

About this car

This 2003 Mercedes-Benz SL has covered 82,500 miles, around 17,500 more miles than is typical for its age. The dealer is asking £7,999, which is £733 below the AskCar estimate of £8,732. To work out the AskCar estimate, we analyse UK dealer adverts for 366 Mercedes-Benz SL cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 160 days ago. Its advertised mileage matches the government's MOT record. It is for sale at On The Hill Motors in South Gloucestershire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Good value: £733 (8%) under the AskCar estimate of £8,732.

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 366 priced Mercedes-Benz SL adverts across different ages and specifications, as of 4 November 2026.

A 2003 Mercedes-Benz SL with the 5.0 petrol engine is typically advertised at £10,000: the median of the 15 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2003 Mercedes-Benz SL has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £8,499. Its asking price is now £7,999, £500 less. The latest price cut was seen on 4 October 2026.

Price changes recorded:

• 29 May 2026: £8,499
• 4 October 2026: £7,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 25 November 2026.

It has had 26 MOTs. The latest, on 21 November 2025, passed.

Advisories at the latest test: tyre slightly damaged/cracking or perishing - all four tyres, on outer edges; offside front lower suspension arm ball joint dust cover slightly deteriorated.

Mileage at that test: 80,745 miles, which matches the advertised 82,500 miles.

Advertised mileage is about 17,500 miles higher than the median mileage of a 2003 Mercedes-Benz SL on AskCar.