2018 Mercedes-Benz SL

3.0 SL400 V6 AMG Line Premium G-Tronic+ RWD Euro 6 (s/s) 2dr Roadster (362 bhp)

£34,995

Fair price: within 8% of the typical £33,344 for this model, age and mileage, drawing on 368 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
SL
Trim
AMG LINE PREMIUM
Version
3.0 SL400 V6 AMG Line Premium G-Tronic+ RWD Euro 6 (s/s) 2dr Roadster (362 bhp)
Mileage
40,000 miles
Year
2018
Fuel type
Petrol
Body type
Convertible
Engine
3.0 L
Gearbox
Automatic
Power
362 bhp
Seats
2
CO2
175 g/km
Colour
Silver
Doors
2
Driven wheels
Rear Wheel Drive
Gearbox version
G-Tronic+
Engine badge
SL400 V6
Emissions standard
Euro 6

About this car

This 2018 Mercedes-Benz SL AMG Line Premium has covered 40,000 miles. Its asking price of £34,995 is £1,651 above our estimate of £33,344. Our estimate draws on 368 Mercedes-Benz SL adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 57 days ago. Its asking price has since fallen by £1,000. The latest MOT record shows an expiry date of 29 October 2026, with the advertised mileage consistent with the recorded reading. You can find this car at HR Sports and Classics in Warrington.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 27 August 2026, 57 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £1,000 from the first recorded £35,995. 1 price reduction recorded, the latest observed on 17 October 2026.

Recorded asking prices
Date observedAsking price
27 August 2026£35,995
17 October 2026£34,995
22 October 2026£34,995

Price and mileage comparison

Estimated market asking price: £33,344. The asking price is £1,651 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 368 adverts of this make and model across different ages and specifications.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 29 October 2026. 35,903 miles at the last test.

2 other cars with the same year, trim, gearbox and fuel are for sale from £30,895 to £41,495.

Other matching cars
Asking priceMileage
£30,89541,563 miles
£41,49517,200 miles

These cars have covered 17,200–41,563 miles, compared with 40,000 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 · 2018 Mercedes-Benz SL price guide

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos