can our e46 alternator be recondition it back to original state....??cause...i had a alternator breakdown last month...in kulim...forced by foremen to install a recon unit...with no choice at all...i installed it..and found out the alternator charging is around 10-11V during idle...i brought back the original alternator..thinking whether it can be recondition it back or not..if can..i prefer use original...or else..buying new would cost my burn wallet...Please advise???