Ronman, I never said the part numbers you supplied were invalid, I just said I couldn't find them on the part. I latter found them on the website links I put in my post. For your information, an assembly is made of parts. Each part has a part number. When you put all of the parts together to make the assembly, what part number do you use - one of the individual part numbers, or a new part number for the whole group of parts, i.e., the assembly. I went searching for a A193 stickers in my crossfire and found some affixed on the crossfire unique parts like the instrument cluster, the cigarette lighter and after a closer look, painted on the top of the SLA. The non crossfire specific parts all had mercedes part numbers like the TMU, the SKREEM, the plastic bezel around the instrument cluster, the pulse module, the pcm, the tcm, even the center console only had a mercedes part number, etc... I find it interesting that you keep saying the part number found on the part is not a valid part number. How does that work? What do the assemblers check when they go to install it - they make a guess, by feel or look. I agree, it isn't the part number for the assembly, but it is a valid part number. Maybe our misunderstanding is what does valid mean - I'm guessing to you it means what a dealership can access or sale you, to me, a valid part number is what I can use to identify individual parts if I need to replace them since the assembly is no longer available. For example, I replaced the motor in the CLP since the CLP is not available anymore. Without the part number on the motor, I would've had a hard time finding a replacement motor.