1989 Mercedes-Benz 300 3.0 SL

Overview

• Make: Mercedes-Benz
• Model: 300
• Trim: SL
• Version: 3.0 SL Auto RWD 2dr (190 bhp)
• Year: 1989
• Mileage: 120,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors
• Engine: 3.0 litres, 190 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Red

About this car

The advertised mileage for this 1989 Mercedes-Benz 300 SL is 120,000 miles. This car was first seen in our listings data 90 days ago. The advertised mileage is lower than the latest MOT reading of 129,341 miles. Ask the dealer to explain. The latest recorded MOT expiry date is 9 July 2021, which has passed. Confirm its status with the dealer. You can find this car at Karmann Classics in Guildford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Time on sale

This 1989 Mercedes-Benz 300 has been on sale for at least 90 days.

Price history

AskCar first saw this advert on 11 August 2026 at £34,990. 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 9 November 2026: the latest record we hold ran out on 9 July 2021; ask the dealer for the current MOT.

It failed its MOT on 10 July 2020 (nearside front integral body structure is so deformed it is likely to adversely affect braking or steering) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 129,341 miles. The advert says 120,000 miles, fewer than the MOT record, so ask the dealer which is right.

Similar cars

4 other 1989 Mercedes-Benz 300 SL 3.0 petrol automatic convertibles are for sale at UK dealers, from £27,999 to £74,995, as of 9 November 2026.

The 3 closest to this car in mileage:

• 1989 Mercedes-Benz 300 SL, 3.0 petrol convertible, red. Mileage: 92,000 miles. Price: £27,999, £6,991 less than this car. Dealer: C M W Car Sales in Croydon. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-1989-fca237ac546b
• 1989 Mercedes-Benz 300 SL, 3.0 petrol convertible. Mileage: 52,000 miles. Price: £55,995, £21,005 more than this car. Dealer: Bruce Greetham Classic Benz in Worcester. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-1989-d4c09f7b6879
• 1989 Mercedes-Benz 300 SL, 3.0 petrol convertible, red. Mileage: 30,457 miles. Price: £74,995, £40,005 more than this car. Dealer: The SL Shop in Stratford-upon-Avon. AskCar page: https://askcar.co.uk/car/mercedes-benz-300-1989-b6fc7a26e359