I need to purchase a new or refurbished Climate/AC Control Unit for my 1997 C280. Thing is, I've been told I need to have the part number from the old part before I order the new part. (Something about possible mid-year changes.)

I'd like to buy the part now, but I will not be near the car for days.

So, can anyone here look up a part number if I give the VIN#? I've called a few dealers and they refuse to do it for me.

Thank you.