1999 Mercedes-Benz SLK 2.3 Kompressor

Overview

• Make: Mercedes-Benz
• Model: SLK
• Trim: Kompressor
• Version: 2.3 Kompressor Auto RWD Euro 2 2dr (193 bhp)
• Year: 1999
• Mileage: 34,399 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.3 litres, 193 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Red
• Emissions standard: Euro 2

About this car

The advertised mileage for this 1999 Mercedes-Benz SLK Kompressor is 34,399 miles. Priced at £6,990, it is advertised £36 below the AskCar estimate of £7,026. 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 31 days ago. The latest recorded MOT expiry date is 18 November 2025, which has passed. Confirm its status with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at HMC in Chesham. 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: £36 (under 1%) under the AskCar estimate of £7,026.

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 31 days.

Price history

AskCar first saw this advert on 7 October 2026 at £6,990. 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 7 November 2026: the latest record we hold ran out on 18 November 2025; ask the dealer for the current MOT.

It has had 24 MOTs. The latest, on 19 November 2024, passed.

There were no advisories at the latest test.

Mileage at that test: 34,523 miles, which matches the advertised 34,399 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 £6,995, as of 7 November 2026.

The 2 closest to this car in mileage:

• 1999 Mercedes-Benz SLK Kompressor, 2.3 petrol convertible, silver. Mileage: 39,143 miles. Price: £6,995, the same price as this car. Dealer: Autocars in Willerby and Anlaby. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-1999-bbd2732fd89c
• 1999 Mercedes-Benz SLK Kompressor, 2.3 petrol convertible, blue. Mileage: 56,680 miles. Price: £3,995, £2,995 less than this car. Dealer: Richard Harris Cars in Birkenhead. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-1999-25930b77d8d7