Hi,
I am wondering if anyone can assist, I want to buy an original file from Ecubin site and for my cars serial number there are two offers, the difference between them is in size of the file , one is 49kb., and the other is 512 kb.
how can I decide which one fits my car ?
my SW 1037351761 car has 120 kw. , E39 from 2001
thanks in advance