2015 Mercedes-Benz SL 3.0 SL400 AMG Sport

Overview

• Make: Mercedes-Benz
• Model: SL
• Trim: AMG Sport
• Version: 3.0 SL400 AMG Sport G-Tronic RWD Euro 6 (s/s) 2dr (328 bhp)
• Year: 2015
• Mileage: 65,747 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 178 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 65,747 miles, this 2015 Mercedes-Benz SL AMG Sport has covered about 11,600 more miles than other 2015 Mercedes-Benz SL cars. The AskCar estimate for this car is £19,186. It is priced at £18,989, which is £197 below that estimate. The AskCar estimate uses 365 UK dealer adverts for the Mercedes-Benz SL, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 73 days ago, and its asking price has since fallen by £1,000. Its advertised mileage matches the government's MOT record. It is advertised by The Hertford Car Company in Bayford. 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: £197 (1%) under the AskCar estimate of £19,186.

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.

A 2015 Mercedes-Benz SL with the 3.0 petrol engine is typically advertised at £19,000: the median of the 17 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2015 Mercedes-Benz SL has been on sale for at least 73 days.

Price history

AskCar first saw this advert on 25 August 2026 at £19,989. Its asking price is now £18,989, £1,000 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 25 August 2026: £19,989
• 30 September 2026: £19,489
• 14 October 2026: £18,989

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 18 April 2027.

It failed its MOT on 17 April 2026 (stop lamp(s) remains on when the brakes are released all) and passed later the same day.

Advisories at the latest test: front brakes imbalanced requirements only just met. it would appear that the braking system requires adjustment or repair; rear tyre worn close to legal limit/worn on edge worn inner with cracks; under tray fitted.

Mileage at that test: 65,188 miles, which matches the advertised 65,747 miles.

Advertised mileage is about 11,600 miles higher than the median mileage of a 2015 Mercedes-Benz SL on AskCar.

Similar cars

15 other 2015 Mercedes-Benz SL AMG Sport 3.0 petrol automatic convertibles are for sale at UK dealers, from £15,975 to £24,895, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2015 Mercedes-Benz SL AMG Sport, 3.0 petrol convertible, blue. Mileage: 70,383 miles. Price: £18,250, £739 less than this car. Dealer: Christopher Chubb Cars in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2015-07f791ba86b3
• 2015 Mercedes-Benz SL AMG Sport, 3.0 petrol convertible, silver. Mileage: 60,900 miles. Price: £15,975, £3,014 less than this car. Dealer: Trade Cars 4 U in Bingley. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2015-c50bc6a0d25d
• 2015 Mercedes-Benz SL AMG Sport, 3.0 petrol convertible, silver. Mileage: 71,693 miles. Price: £18,500, £489 less than this car. Dealer: SKV Motors in Romford. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2015-909d994ed60a