Settle with your reverse gear poblem bro?
If not, do visit my workshop, PT Pantas at Tunjung KB (Just after pintu gerbang Majlis Daerah Ketereh fr KB).
Get your car diagnosed with GT1 first (it won't cost a bomb). The computer will know almost everything happened in there. Than you'll know what to do next. Or we can fix it straight away.
Its sure better than you just keep guessing, worse if you just go try-and-error fixing here and there. Most important, never change your ATF oil other than BMW or ZF (if yours use ZF tranny) if u're going to live long & happy with your BMWs.
Can call me, Mi at 019 3889012.