When i try to lower my roof the rear window lifts up but the deck lid won't open it appears to be trying to, I've read somewhere there is a small plastic cog that quite often splits i can get replacements on ebay for £20. Nowhere can i find out how to lift the deck lid to find out if the cog has split. Considering this is apparently a common problem i can't seem to find any answer's anywhere. Would appreciate any help or ideas.