2015 Mercedes-Benz SL

3.0 SL400 AMG Sport G-Tronic RWD Euro 6 (s/s) 2dr (328 bhp)

£18,799

Above the going rate: £1,473 over the typical £17,326 for this model, age and mileage, drawing on 365 adverts of this make and model.

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)
Mileage: 77,487 miles
Year: 2015
Fuel type: Petrol
Body type: Convertible
Engine: 3.0 L
Gearbox: Automatic
Power: 328 bhp
Seats: 2
CO2: 178 g/km
Colour: Silver
Doors: 2
Driven wheels: Rear Wheel Drive
Gearbox version: G-Tronic
Engine badge: SL400
Emissions standard: Euro 6

About this car

This 2015 Mercedes-Benz SL AMG Sport is advertised with 77,487 miles, approximately 20,300 above the typical mileage for its age. At £18,799, it is advertised £1,473 above our estimated market asking price of £17,326. The estimate uses 365 UK dealer adverts for the Mercedes-Benz SL, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 73 days ago. Its asking price has since fallen by £200. It may give you a starting point for a conversation about price. The latest MOT record shows an expiry date of 14 August 2027, with the advertised mileage consistent with the recorded reading. It is advertised by Red Lion Motors in Chelmsford.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 14 August 2026, 73 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £200 from the first recorded £18,999. 1 price reduction recorded, the latest observed on 29 September 2026.

Recorded asking prices
Date observed	Asking price
14 August 2026	£18,999
29 September 2026	£18,799
23 October 2026	£18,799

Price and mileage comparison

Estimated market asking price: £17,326. The asking price is £1,473 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 365 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 20,300 miles higher than typical for a 2015 Mercedes-Benz SL.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 14 August 2027. 77,556 miles at the last test.

21 other cars with the same year, trim, gearbox and fuel are for sale from £15,975 to £35,995.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£15,975	60,900 miles
£15,995	96,000 miles
£16,490	98,000 miles
£16,995	74,700 miles
£17,490	83,500 miles

These cars have covered 27,000–98,000 miles, compared with 77,487 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Mercedes-Benz SL cars for sale · 2015 Mercedes-Benz SL price guide

Vehicle photos

AskCar lists 589,789 cars from 13,079 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.