chassis model
 

Hello everyone, new to this forum. I recently acquired a 2002 mercedes c240 vin: WDBRF61J72F147656
Can someone help me figure out the chassis model? w112, w203, etc. I have looked in different websites but I haven't been able to figure it out. I found the engine model M112 and other stuff, but seems like a lot of part websites ask for the chassis. Also, can someone recommend a good parts website? Looks like one of the stepper motors for the AC doesn't work and defroster doesn't blow air towards the windshield so I need to get a new one.

Thanks in advanced!!!!