As the title suggests, the front passenger seat in my 2002 e53 x5 is stuck upright and I can't get it to recline. I've taken the seat apart a bit and can confirm that the seat adjustment motor for the backrest is working just fine. I think what's wrong is that the gears inside the gearbox may have broken and need to be replaced, but I can't find any information anywhere on how to disassemble the seat to get to the gears and replace them to fix the issue. If anyone has any information P L E A S E share it with me.