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: 40,000 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

With 40,000 miles on the clock, this 2017 Mercedes-Benz SL AMG Line has done roughly 11,200 more miles than a typical 2017 Mercedes-Benz SL. The dealer is asking £32,990, which is £995 above the AskCar estimate of £31,995. To work out the AskCar estimate, we analyse UK dealer adverts for 365 Mercedes-Benz SL cars across different ages and specifications. We first recorded this advert 115 days ago, and its asking price has since fallen by £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Gerry Hill Car Sales in Aberdare. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £995 (3%) over the AskCar estimate of £31,995.

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 2017 Mercedes-Benz SL has been on sale for at least 115 days.

Price history

AskCar first saw this advert on 14 July 2026 at £33,990. Its asking price is now £32,990, £1,000 less. The latest price cut was seen on 30 September 2026.

Price changes recorded:

• 15 July 2026: £33,990
• 30 September 2026: £32,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 30 June 2027.

It failed its MOT on 18 May 2026 (nearside front suspension arm ball joint excessively worn) and passed 44 days later, on 1 July 2026.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing cut on sidewall.

Mileage at that test: 37,897 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 11,200 miles higher than the median mileage of a 2017 Mercedes-Benz SL on AskCar.

Similar cars

7 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 6 November 2026.

The 3 closest to this car in mileage:

• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, black. Mileage: 46,000 miles. Price: £29,995, £2,995 less than this car. Dealer: SKS Cars in Milton Keynes. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-220378410fff
• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, other. Mileage: 28,828 miles. Price: £32,464, £526 less than this car. Dealer: Vertu Mercedes Beaconsfield in Beaconsfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-3ad48a10c8ea
• 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, blue. Mileage: 27,000 miles. Price: £34,990, £2,000 more than this car. Dealer: James Paul in Horsham. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-39353131490c