E30 Zone

hey guys i got problems with my central locking on the nsf well it don't work i removed door card to investigate to find out there was no actuator fitted so i fitted 1 from a spare door that i had. so fitted it and when i now go to lock the doors the nsf still does not work but as soon as i lock it it unlocks again. any help would be nice as i am baffled. as soon as i disconnect the plug to the nsf actuator the central locking works fine apart from the nsf not locking or unlocking. its an 88 2 door if that makes any difference thanks guys

It sounds like the actuator you fitted doesn't work

my thpughts aswell so i tried another 1 and same problem happened

take off the panel at the footwell and take out the speaker driver side there is a black box in the pillar change that.it wount be that obvious to find