Mercedes-Benz CLK-Klasse 209 CLK 240 Coupé, 170 PS, 5-speed automatic, rear-wheel drive (2002–2005)

Research for this car

Generation guide Mercedes CLK W209 (2002-2010): known problems and buying guide
Below-average breakdown record. Check the timing chains, the cabriolet roof and the body before you buy.

Issue	Affects	Typical km	Repair cost	Source
5-speed automatic radiator leaks coolant into the gearbox	5-speed automatic 722.6, cars built to September 2003	Not stated	No confirmed price	Generation guide
Cabriolet roof hydraulics and microswitches fail	Cabriolet only	Not stated	No confirmed price	Generation guide
Body rust at wheel arches, doors and sills	All cars, mostly before the facelift	Not stated	1,444 EUR for a painted front wing (AUTO BILD, year not stated)	Generation guide
Front suspension joints and arms wear	All cars, worse on bad roads	About 50,000-100,000 km on bad roads	About GBP 250 for good-quality parts (owner, year not stated)	Generation guide

Drive in drive and reverse. Shifts must be smooth. Ask whether the radiator was replaced, and look for coolant in the gearbox fluid. A scanner reads gearbox codes. Bad result: harsh shifts, rumbling at low speed or cloudy fluid.
Open and close the cabriolet roof twice with the boot divider fully down. Watch for a stop, a stall or a whine. Bad result: the roof stops partway, or water shows in the boot. Cabriolets only.
On a lift, check the wheel arches, sills, lower door edges and boot lid. Bad result: bubbling paint, holes or fresh filler.
On a lift, check ball joints, control arm bushes and tie rods for play. Bad result: knocks over bumps or uneven tyre wear.

Operational	€312
Workshop	€131
Fixed costs (tax, insurance)	€144
Total per month	€587
New-car depreciation (not included)	€55

ADAC figures for 15,000 km a year over 60 months

Listings on mobile.de in this generation with this fuel, gearbox and power.

First registration	Listings	Median price	Median mileage
2005	2	–	–
2004	11	€5,999	187,000 km
2003	19	€5,950	196,000 km
2002	26	€3,900	178,000 km

Medians only for years with at least 5 listings. Many cars are first registered after production ends, so years can run past the build years.

Month	Listings	Median price	Middle half	Median mileage
Nov 2026	58	€4,999	€3,500 – €6,150	187,900 km
Oct 2026	58	€4,999	€3,500 – €6,150	187,900 km

Median asking price at the last snapshot of each month.

All 2 ADAC versions

Version	Power	Production years	Running cost per month
CLK 240 Coupé Elegance Automatik	170 PS	2002–2005	€587
CLK 240 Coupé Avantgarde Automatik	170 PS	2002–2005	€587