Hi got the kkl interface with 16 pin obd and never had any reading problems as yet but been told after 2004 they don't work. But it worked on a 05 e46. My boss has a Z4 M 06 reg 2006 and his emission light has come on just wondered if anyone has used the interface on this model. It does list the car when you go into cars in carsoft menu. Any ideas? Thanks for looking!