Hi guys,

I have ran into a problem with headlamps. I am looking for a replacement for my broken left headlamp and ran into a problem that I am not sure whether the one I have found fits my Audi.
Currently I have headlamp with code 8K0 941 003 E (20S) and I have found second hand 8K0 941 003 B (27S) for a good price.

My question is what does 20S and 27S mean? What does these numbers indicate? And what is the difference between E and B at the end of the part code?

Thanks!