1999 Mercedes-Benz SLK 2.3 Kompressor

Overview

• Make: Mercedes-Benz
• Model: SLK
• Trim: Kompressor
• Version: 2.3 Kompressor Auto 5dr
• Year: 1999
• Mileage: 39,143 miles
• Fuel: Petrol
• Body: Convertible, 5 doors, 2 seats
• Engine: 2.3 litres
• Gearbox: Automatic
• Colour: Silver

About this car

This 1999 Mercedes-Benz SLK Kompressor is advertised with 39,143 miles on the clock. Priced at £6,995, it is advertised £317 below the AskCar estimate of £7,312. To work out the AskCar estimate, we analyse UK dealer adverts for 417 Mercedes-Benz SLK cars across different ages and specifications. This car was first seen in our listings data 9 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Autocars in Hull. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £317 (4%) under the AskCar estimate of £7,312.

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 417 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 7 November 2026.

Time on sale

This 1999 Mercedes-Benz SLK has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 29 October 2026 at £6,995. 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 7 November 2026: valid until 13 October 2027.

It has had 6 MOTs. The latest, on 9 October 2026, passed.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing.

Mileage at that test: 39,121 miles, which matches the advertised 39,143 miles.

Similar cars

2 other 1999 Mercedes-Benz SLK Kompressor 2.3 petrol automatic convertibles are for sale at UK dealers, from £3,995 to £6,990, as of 7 November 2026.

The 2 closest to this car in mileage:

• 1999 Mercedes-Benz SLK Kompressor, 2.3 petrol convertible, red. Mileage: 34,399 miles. Price: £6,990, the same price as this car. Dealer: HMC in Chesham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-1999-a834112d2b68
• 1999 Mercedes-Benz SLK Kompressor, 2.3 petrol convertible, blue. Mileage: 56,680 miles. Price: £3,995, £3,000 less than this car. Dealer: Richard Harris Cars in Birkenhead. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-1999-25930b77d8d7