Greggross

Hi all,
I bought a used C300 year 2010, but the ESP OFF button is not working, when I pressed it, there is nothing triangle light came on.
Dealer had checked with scanner and no any error and when they check the ESP Control Module, it looks like the part has been replaced.
The part number is A2049012500 and they suggest the original part is A2049012300 and they dont have the part and also unsure if I order the part and the unit is correct or not.
If you have the same model of this vehicle, can you help me to look for the part number under the hood?
And if anybody know the interchange part?
I saw in ebay there are some interchange number but I am unsure also, this part is very expensive for new one, the dealer said about usd.1500 and I am looking for use one.
As C300 are very little here, the dealer cant guarantee that they can help me to look in the other C300.
I really need help for this matter, any help will be appreciated.






Here is the part that attached in my C300, I dont know if the last owner had replaced all the unit or just the module and let the ESP motor, I have no clue.


Rgds,
Noel

Greggross

Here is the ebay list that say the interchange part :




And another interchange part ?



Rgds,
Noel