[CrazyOneToo]

Hello everyone. I'm having a no turn over issue with my 2007 BMW Z4 roadster 3.0i. Well....winter hit the area and I knew something(s) was bound to go out soon. Previous owner had a smaller battery (H5) in it when I bought it and today I replaced it with a H7 full size model. After that the car would not turn over. It started ok the night before with the old battery. There was some slight dragging on really cold mornings that I thought might be from the smaller battery due to these cars being rich with electronics. I have strong lights, dash lights, air fan, stereo, etc. When I try to start the car there are no clicks or sounds at the key start position. I tried jumping it in case the new one was low. No change. I tried putting the old battery back in, still no turn over. I tried reprogramming my keys in case it had forgotten them in the disconnect, still no turn over. As far as I can tell my car does not have an alarm/immobilizer. It does flash the lights when locking and unlocking and has a blinking clown nose. But no hood switch or sounds. I checked all the fuses behind the glove box and #32 and #5 are confusing me. The way 5 is made makes it not very checkable and 32 is showing no power. I dont have the fuse card but looking online I found hopefully the correct one. Fuse 5 shows is for the lighter and it works. Fuse 32 is for SMG and I have a 6 speed manual so I am assuming "maybe" all is good there. I'll try to check the clutch switch today but I'm not optimistic.

I'm sure it could be the starter but it seems "odd" it would go out without any major dragging first.

I need my car!!!!

Any other ideas?