Your Convertable's trunk not opening?

If you can open the trunk with the key, do so. Then disconnect the battery ground cable for about 15 seconds, and reconnect it. Maybe that will clear the ECM and allow the roof to close and reset the light. Then close the trunk.
Good luck...

Hi Stan

First of all the roof is not even soppose to operate while the trunk is open - So there is the first problem Ive been involved with BMW's for a long time and this is the first Ive heard of a roof opening while the trunk is open. There is a built in feature that tells the car not to open the roof if the trunk is open and the other way roung while the roog lid is open the trunk cant open.

The reason the roof is not working anymore as soon as there is stress on the roof the electric motors(One operates the roof and the other operates the roof lid)  disengages, You said that the roof still worked but the lid did not so probably only the one motor disengaged. So what you have to do is open the trunk on the left hand side right behind the tail light pull away the material and simply just push the electric motor into place. that should fix your problem.

It may happen that the two motors have become out of sync, Disengage both electric motors manualy put the roof away engage the motors and that should put the roof and lid back into sync.

Beamerguy. 

That is not the problem the problem is your convertable roof is not closing properly to test this let someone press down on the roof lid and then try to open the trunk, To fix this let the roof lid open and let the roof come up until the back part stands up to let the roof lid close so that the roof hold is exposed look on the right hand side of the car (if your standing at the back) under the roof lid catch there is a small plastic buttun that the roof lid catch needs to pres down on, this tells the car that the roof lid is seucre and it is now safe to let open the trunk, All you have to do is set the tension on the cable for that roof lid catch and the problem is sorted.

Beamerguy

The Roof Mechanism works with two motors similiar to the ones that wund the windows. Now the two mechanism are located in the left side of the trunk. 

The trunk wont open Because of the roof lid that is not closed properly. How you can test this is to press down on the right sid of the roof lid and then try to opne the trunk.

Now the reason that this is happening is that the roof lid is not closing properly nad pressing on a small orange buttin located just below the right hand side roof lid catch. How you are going to remedy this problem is to adjust the cable tension to close more securely.

Now the two motors in the trunk that works the convertable roof can be engaged and disengaged on motor works the roof lid and the other one the roof.

You need to get these motors in sync so that they open and close the roof in the correct order.

That is if the electric are still working.

The problem is that your roof(SOFT TOP) lid isnt closing properly. If you open the roof lid you see there is a button on one of the latches that tells the car that the roof is securely closed if your roof lid is not secure the trunk wont open. To test this press down on the roof lid and the try to open the trunk.