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: 46,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 3.0 litres, 362 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 175 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2017 Mercedes-Benz SL AMG Line has covered 46,000 miles, around 12,800 more miles than is typical for its age. Priced at £29,995, it is advertised £960 below the AskCar estimate of £30,955. The AskCar estimate uses 374 UK dealer adverts for the Mercedes-Benz SL, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 156 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by SKS Cars in Milton Keynes. 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: £960 (3%) under the AskCar estimate of £30,955.

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 156 days.

Price history

AskCar first saw this advert on 5 June 2026 at £29,995. 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 8 November 2026: valid until 7 January 2027.

It has had 8 MOTs. The latest, on 8 January 2026, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 42,202 miles, which matches the advertised 46,000 miles.

Advertised mileage is about 12,800 miles higher 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, black. Mileage: 40,000 miles. Price: £32,990, £2,995 more 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: 27,000 miles. Price: £34,990, £4,995 more than this car. Dealer: James Paul in Horsham. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-39353131490c
• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, blue. Mileage: 26,555 miles. Price: £38,495, £8,500 more than this car. Dealer: Parkway Specialist Cars in Mansfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-ef2ca3a6a183

• The nearest: 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, black, 26 miles from this car. Mileage: 86,417 miles. Price: £24,950, £5,045 less than this car. Dealer: James Richards Car Sales in Stevenage. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-4481af8ce8b9