E46 Convertible top problem
This seems like a common problem with e46 convertible tops. I had the same problem with my 330ci. Here is what I found out on how to fix the issue. Need to check the following:
1. Is the top not closing all the way and getting stuck just before it is suppose to latch?
2. The storage is not opening?
3. Hearing some clicking noises while it is closing?
I think I have found a solution for this problem. The dealer is going to charge couple of hundred dollars just to diagnose the problem.
The problem is with a plastic gear inside the box under the rear seat. Dealer price for the item is $300+. After spending days on trying to find/solve this issue, I have found a place which sells the plastic gear for less than $50. Replacing this gear requires some mech. knowledge but if you are good with tools you can do it otherwise you can send him the unit and he replace the gear too (extra charge I don't know how much). I am putting together a pdf file for all the steps with pictures which I can email to people.