Hi there amigos!
I have a 525i 2001 M sport, few weeks ago I was driving and suddenly the CD stopped working but the radio was on with the sound to the max, no controls from steering for radio and no way to stop it not even fromthe knob, I have the original sound system, "executive" or something...no GPS...
Then realized the green arrows on the dashboard didn't wortk either but the indicators did work...
Next day went to the car and acouldn't open with the remote.. sat inside and as I turned the key all locks locked the doors... after digging here and there on different forums found the relay 53 stuff, checked all fuses, glove box and trunk all were ok but I removed the 53 and then put it again... that did the magic, everything worked again remote included...
Then reseted oil change green lights on dashboard and did that cool test about odometer when everything lights up and moves...and since then remote stop workin, checked battery on key fob all fuses, disconected battery 15 minutes...tried all... re code the key...nothing works, I can close doors from inside with central locking button and all of them shut but the remote doesn't work at all...when car moves a bit automatically all doors are locked whatt is nice but it was not like this before...
I found about GM3 and ordered one, my question is if is only swap, plug and play or I need to program the GM3 before?...
Thanks in advance family!!
Regards, Arthur.