2017 Mercedes-Benz SL 3.0 SL400 V6 AMG Line

Overview

• Make: Mercedes-Benz
• Model: SL
• Trim: AMG Line
• Version: 3.0 SL400 V6 AMG Line G-Tronic+ RWD Euro 6 (s/s) 2dr Roadster (362 bhp)
• Year: 2017
• Mileage: 27,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 3.0 litres, 362 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 175 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2017 Mercedes-Benz SL AMG Line is 27,000 miles. Its asking price of £34,990 is £170 above the AskCar estimate of £34,820. The AskCar estimate uses UK dealer asking prices, including 374 Mercedes-Benz SL adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 25 days. Ask the dealer why the advert shows fewer miles than the 27,537 recorded at the latest MOT. The latest recorded MOT expires on 29 September 2027. It is for sale at James Paul in Horsham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £170 (under 1%) over the AskCar estimate of £34,820.

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 8 November 2026.

Time on sale

This 2017 Mercedes-Benz SL has been on sale for at least 25 days.

Price history

AskCar first saw this advert on 14 October 2026 at £34,990. 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 8 November 2026: valid until 29 September 2027.

It failed its MOT on 30 September 2026 (nearside rear stop lamp(s) not working) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 27,537 miles. The advert says 27,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 6,200 miles lower than the median mileage of a 2017 Mercedes-Benz SL on AskCar.

Similar cars

5 other 2017 Mercedes-Benz SL AMG Line 3.0 petrol automatic convertibles are for sale at UK dealers, from £24,950 to £38,495, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, blue. Mileage: 26,555 miles. Price: £38,495, £3,505 more than this car. Dealer: Parkway Specialist Cars in Mansfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-ef2ca3a6a183
• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, black. Mileage: 40,000 miles. Price: £32,990, £2,000 less than this car. Dealer: Gerry Hill Car Sales in Aberdare. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-bd1b65737e33
• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, blue. Mileage: 13,968 miles. Price: £35,000, the same price as this car. Dealer: JD Motor Company (NE) in Darlington. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-269a18ab9b2e

• The nearest: 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, black, 57 miles from this car. Mileage: 86,417 miles. Price: £24,950, £10,040 less than this car. Dealer: James Richards Car Sales in Stevenage. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-4481af8ce8b9