2005 Mercedes-Benz SLK 1.8 SLK200 Kompressor

Overview

• Make: Mercedes-Benz
• Model: SLK
• Trim: Kompressor
• Version: 1.8 SLK200 Kompressor Auto RWD 2dr (163 bhp)
• Year: 2005
• Mileage: 80,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 1.8 litres, 163 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 211 g/km

About this car

This 2005 Mercedes-Benz SLK Kompressor has covered 80,000 miles. The dealer is asking £3,200, which is £179 above the AskCar estimate of £3,021. To work out the AskCar estimate, we analyse UK dealer adverts for 417 Mercedes-Benz SLK cars across different ages and specifications. Since we first spotted the advert 40 days ago, the asking price has dropped by £295. The last MOT shows 88,715 miles, more than the advert. This is worth checking with the dealer. The latest recorded MOT expires on 7 September 2027. You can find this car at Roberts Car Sales North West in Flintshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £179 (5%) over the AskCar estimate of £3,021.

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 8 November 2026.

A 2005 Mercedes-Benz SLK with the 1.8 petrol engine is typically advertised at £3,200: the median of the 15 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2005 Mercedes-Benz SLK has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 29 September 2026 at £3,495. Its asking price is now £3,200, £295 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 29 September 2026: £3,495
• 17 October 2026: £3,200

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 7 September 2027.

It has had 26 MOTs. The latest, on 8 September 2026, passed.

Advisories at the latest test: offside front lower suspension arm pin or bush worn but not resulting in excessive movement front lower arm bush cracking; nearside front lower suspension arm ball joint has slight play rear lower arm ball joint.

Mileage at that test: 88,715 miles. The advert says 80,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 2,000 miles higher than the median mileage of a 2005 Mercedes-Benz SLK on AskCar.

Similar cars

9 other 2005 Mercedes-Benz SLK Kompressor 1.8 petrol automatic convertibles are for sale at UK dealers, from £2,395 to £6,000, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2005 Mercedes-Benz SLK Kompressor, 1.8 petrol convertible, silver. Mileage: 78,000 miles. Price: £2,489, £711 less than this car. Dealer: Capital Cars in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2005-dc2ff6fed584
• 2005 Mercedes-Benz SLK Kompressor, 1.8 petrol convertible, black. Mileage: 82,000 miles. Price: £2,995, £205 less than this car. Dealer: Radlett Cars in Radlett. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2005-c41e2259ea10
• 2005 Mercedes-Benz SLK Kompressor, 1.8 petrol convertible, silver. Mileage: 75,550 miles. Price: £2,995, £205 less than this car. Dealer: Swans Motor Group in Norwich. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2005-dd584cf8fb11

• The nearest: 2005 Mercedes-Benz SLK Kompressor, 1.8 petrol convertible, black, 68 miles from this car. Mileage: 26,700 miles. Price: £5,999, £2,799 more than this car. Dealer: Shocars in Oldbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2005-2b90251bc695