Hi all, I own a 2005 Z4 3.0i (MANUAL ) and the drivers side door will not unluck with the key( it only unlocks from inside). The dealer here in Greece told me that I need to change the GM5 MODULE and the part number is: 61359116445. The car is a US model, and they quoted me a price of €450. As I looked around, no one seems to know if there is ONLY one type of module for my Z4…Some have claimed that there are differences between the UK model, the US model and the European model, but no one is for sure… I have found some used ones online for a fraction of the price that the dealer quoted me. Does anyone know if there are differences between the modules? For instance, can I go ahead and order a used one from the UK for my US model? Any input would be much appreciated!!!! Thanks!