I have a problem with the boot lock on my 1998 SLK 230 Compressor. I can't open it with the key or central locking. Pushing the lock button does nothing. The rod mechanism inside the boot has become dislodged. This means I can't get inside the boot to pull out the flap so I can operate the electric roof. Is there any way I can get into the boot? If not is there a way that the roof can be taken taken down manually or do I have to get a tech to replace the lock and rods etc? Thanks in advance for any replies.