Hi everyone, I’m a newbie. I just purchased a 2006 Z4 3.0 i. Everything works just fine except the top. It’s in manual mode. I need to replace the motor but won’t spend the $800 the dealer wants. I’m also warned not to buy anything cheap off eBay. You get what you pay for. I’m told the mustang motor works just fine and is much more cost effective. Can anybody tell me what year motor to get, part number, any info would certainly help me. Thanks.