2004 Mercedes-Benz SL 3.7 SL350

Price: £5,490. Far below the going rate: £2,037 (27%) under the AskCar estimate of £7,527, 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. Worth asking the dealer why.

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

Overview

  • Make: Mercedes-Benz
  • Model: SL
  • Version: 3.7 SL350 Auto RWD Euro 3 2dr (245 bhp)
  • Year: 2004
  • Mileage: 70,000 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 2 seats
  • Engine: 3.7 litres, 245 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Black
  • CO2: 281 g/km
  • Emissions standard: Euro 3

About this car

This 2004 Mercedes-Benz SL is advertised with 70,000 miles on the clock. Priced at £5,490, this car is advertised £2,037 below the AskCar estimate of £7,527. This is a large price difference, so check the price and vehicle details with the dealer. The AskCar estimate draws on 365 Mercedes-Benz SL adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 70 days ago. The advertised mileage is lower than the latest MOT reading of 70,523 miles. Ask the dealer to explain. Its MOT is recorded as valid until 6 July 2027. It is for sale at Lincoln Marks Motor Co in Macclesfield. 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

Far below the going rate: £2,037 (27%) under the AskCar estimate of £7,527. Worth asking the dealer why.

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 2004 Mercedes-Benz SL has been on sale for at least 70 days.

Price history

AskCar first saw this advert on 28 August 2026 at £5,490. 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: valid until 6 July 2027.

It has had 19 MOTs. The latest, on 7 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 70,523 miles. The advert says 70,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 2,000 miles lower than the median mileage of a 2004 Mercedes-Benz SL on AskCar.

Browse all Mercedes-Benz SL cars for sale · 2004 Mercedes-Benz SL price guide

More like this

Photos

16 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.