i have fixed a 2-e39 sunroofs, and a E31 with a tutorial. this seemed a little more complicated. and i was under the impression that when you start taking apart. the chain was spring loaded, and would snap to one side and be uncoverable. IDK where i got that idea. the e39 jut 2 plastic pieces on each side and adjusting and works great. if there would be a turorial i would try. but my e53 4.4 has 187k on it. i think it is on borrowed time. it is innexcellent shape tho, i am hoping to put many miles on it. i am getting things repaird and well sorted. But without a do's and dont's pic time line, just easier to disable rear section. otherwise could be stuck with a open roof sav and no way to remedie except $6k

__________________
01Evolve M5 86k silver over black, 02 M5 indi, Dinan, white over caramel 106k. 1991 850i with 66k ttint 72 TA # matching 455HO, with a few tweaks, 06 CCSB 2500 Duramax LBZ with 120 hp efilive tune, 03 CCDRW,LB7 with a 120hp efi live tune 140k. 99 FLHT. 03 FXDWG with 103 in it. 1981 yamaha 850 3cyl. Piped and carbed, cafe in progress. 1997 26' Eliminator eagle, 548 cid BBC built by me. 93mph. Lastly the reason why i am here, 05 x5 4.4. Purchased for pocket change and trailered home.