1998 Mercedes-Benz SLK 2.3 Kompressor
Price: £2,295. Far below the going rate: £3,155 (57%) under the AskCar estimate of £5,450, our expected asking price for this car from its model, age, mileage and specification, drawing on 407 priced Mercedes-Benz SLK adverts on AskCar as of 9 November 2026. Worth asking the dealer why.
AskCar lists 459 used Mercedes-Benz SLK from 358 UK dealerships, as of 9 November 2026.
Overview
- Make: Mercedes-Benz
- Model: SLK
- Trim: Kompressor
- Version: 2.3 Kompressor Auto RWD Euro 2 2dr (193 bhp)
- Year: 1998
- Mileage: 89,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 2.3 litres, 193 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Silver
- Emissions standard: Euro 2
About this car
The advertised mileage for this 1998 Mercedes-Benz SLK Kompressor is 89,000 miles. This car is priced at £2,295, £3,155 below the AskCar estimate of £5,450. Such a large price gap is worth checking with the dealer. The AskCar estimate uses 407 UK dealer adverts for the Mercedes-Benz SLK, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 165 days ago. The advertised mileage is lower than the latest MOT reading of 90,800 miles. Ask the dealer to explain. Its MOT is recorded as valid until 22 May 2027. The seller is AutoMart Car Sales, based in Sunbury on Thames. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 9 November 2026.
AutoMart Car Sales is rated 4.3 out of 5 on Google.
Price
Far below the going rate: £3,155 (57%) under the AskCar estimate of £5,450. 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 407 priced Mercedes-Benz SLK adverts across different ages and specifications, as of 9 November 2026.
Time on sale
This 1998 Mercedes-Benz SLK has been on sale for at least 165 days.
Price history
AskCar first saw this advert on 28 May 2026 at £2,295. 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: valid until 22 May 2027.
It has had 31 MOTs. The latest, on 23 May 2026, passed.
Advisories at the latest test: all suspension / sub frame underside covered in underside sealant; rear shock absorbers has a reduced damping effect both sides.
Mileage at that test: 90,800 miles. The advert says 89,000 miles, fewer than the MOT record, so ask the dealer which is right.
Similar cars
1 other 1998 Mercedes-Benz SLK Kompressor 2.3 petrol automatic convertible is for sale at UK dealers, as of 9 November 2026.
The closest to this car in mileage:
- 1998 Mercedes-Benz SLK Kompressor, 2.3 petrol convertible, silver. Mileage: 22,000 miles. Price: £8,497, £6,202 more than this car. Dealer: Car Kultur in Aston Sandford. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-1998-352e1e552a74
Browse all Mercedes-Benz SLK cars for sale · 1998 Mercedes-Benz SLK price guide
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Photos
64 photos of this car are on its AskCar page.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.