2017 Mercedes-Benz SL 3.0 SL400 V6 AMG Line

Price: £38,495. Above the going rate: £3,924 (11%) over the AskCar estimate of £34,571, our expected asking price for this car from its model, age, mileage and specification, drawing on 365 priced Mercedes-Benz SL adverts on AskCar as of 6 November 2026.

AskCar lists 466 used Mercedes-Benz SL from 343 UK dealerships, as of 6 November 2026.

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: 26,555 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

At 26,555 miles, this 2017 Mercedes-Benz SL AMG Line has covered about 2,300 fewer miles than other 2017 Mercedes-Benz SL cars. Its asking price of £38,495 is £3,924 above the AskCar estimate of £34,571. To work out the AskCar estimate, we analyse UK dealer adverts for 365 Mercedes-Benz SL cars across different ages and specifications. It first appeared in our advert records 128 days ago. Our latest MOT record expired on 20 July 2026. Check the current position with the dealer. Its advertised mileage matches the government's MOT record. The seller is Parkway Specialist Cars, based in Mansfield. 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

Above the going rate: £3,924 (11%) over the AskCar estimate of £34,571.

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 128 days.

Price history

AskCar first saw this advert on 1 July 2026 at £38,495. 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 6 November 2026: the latest record we hold ran out on 20 July 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 21 July 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 24,822 miles, which matches the advertised 26,555 miles.

Advertised mileage is about 2,300 miles lower 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 £35,500, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2017 Mercedes-Benz SL AMG Line, 3.0 petrol convertible, blue. Mileage: 27,000 miles. Price: £34,990, £3,505 less 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, other. Mileage: 28,828 miles. Price: £32,464, £6,031 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: 13,968 miles. Price: £35,000, £3,495 less than 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, grey, 73 miles from this car. Mileage: 13,450 miles. Price: £35,500, £2,995 less than this car. Dealer: J R R Cars in Leyland. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-62b7f066e700

Browse all Mercedes-Benz SL cars for sale · 2017 Mercedes-Benz SL price guide

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Photos

40 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.