Hello , my contribution to the much quoted topic: My car: SLK 200 Year of manufacture 2001, 128000km, stapled; about 4 weeks ago the motor lamp lights up, finding: Lambda probe defective. Exchange, costs: around 300€. Now 4 weeks later lamp lights up again, error: again the Lambda probe. Probe can be extended, finding: oil to probe. After the complete diagnosis it is now clear that the cam adjuster is leaking. With the full program: Cable tree+ control unit must be exchanged. Costs: v This work has been done so far at MB. I asked for it at a free workshop today, but have not yet received an offer of costs. They only let us see that the control unit could be sent in and cleaned, which would probably minimize the costs. I will continue to report on this matter… Still, one question: Wouldn’t MB have had to examine the current problem at the first exchange of the lamda probe? The problem with I guess I don’t have to count on Kulanz given the age and the mileage of my SLK’s… Greetings The Willibulli