HI I need to source a couple of replacement fuel injectors for our 2007 2.0Ltdi (170hp) A3.
I have the number off the side of the injector - but there appears to be lots of the same 'number' with different suffix letters.
can anyone tell me what the letter significance is and whether they are interchangable. some sites appear to suggest that this is the case, for instance - 03G130073 T & 03G130073 M .

thanks