Hi, I have decided that i will need to replace my PS pump. I think i am going to get one from a scrapped vehicle (rear end collision) so the ps pump shouldnt be damaged and they guy said it comes with a 3 month warranty. As the pump i am getting is off a 2013 ibiza (mines a 2014) will i still need to code the part or should it work straight on connected no coding needed?? My part number is 6R0423156c. I have seen other pumps ending in A,B, AB ect. Whats the difference and what do u guys think i should do as the one from scrapped car is only £80!