Hello, last week I had my SL65 AMG R230 EZ 2007 in the workshop, because the engine control light is constantly on and the engine is no longer running on all cylinders. After a short shutdown, the problem seems to be fixed, but the luminaire remains on. First diagnosis: Cylinder 3 stops. It is not on the spark plugs. Unfortunately, there is no plan. Now, according to the workshop, the ignition box and/or the control unit could be replaced on suspicion. Cost point approx. 2000 Euro plus installation. According to the workshop, there are experts who could better interpret the result of the selection as they themselves, but you don’t know one of them. In my opinion, they also have little desire to deal with it. I have now brought the vehicle back and am looking for a specialized (AMG) workshop, which is perhaps better or smarter. I am from the area Regensburg / Ingolstadt, postal code 93 or 85. Would also be far away I’d be happy if the diagnosis were safe. Of course, I don’t have a problem spending the 2500 euros for the corresponding part. But 4500 euros on suspicion of shooting into the wind is already a lot required. Maybe someone can help me with a tip. MfG Daniel