My e34 & e38 had sticking rear door locks..
E38 making sure the door panel did not interfere with it solved it..
E34 i swapped doors and with out think about it solved coincidentally..
1995 540i /6 speed.Black on black. Cold air intake/ Dinan tune/racing exhuast /545 SSK /3.15 with LSD / rev-shift racing motor mounts/stage 4, 6 puck clutch/ K Sport coil overs / 19" BBS LM's / suede sparco 368 steering wheel, Recaro bucket seats, sparco 4 point harnesses, NX wet kit, M/T drag slicks
"Skill can only get you so far, then comes money!"
R . I . P Paul Walker - 1973 - 2013