E36 Power Locks

I replaced my battery about 4 years ago shortly after I bought my baby. This fixed the starter issue but since then I have had to re-enter the code for the stereo and the remote door lock/unlock has never worked.

A few months after that the driver door would not unlock and after that started it took a few turns of the key to get the door to lock. Unlocking all doors on the car from the trunk was always the quick fix via the power locks. As a side note the passenger-front door was always able to unlocked and lock manually.

About a week ago the power locks stopped working altogether so the only way to get into the car after it is locked is to unlock the passenger-front door then reach across and lift the lock on the drivers-door to get in. Locking and unlocking the trunk only locks and unlocks the trunk and not the entire car as it used to.

I checked the fuses under the hood and have shot lithium grease in all the locking mechanisms in every door and latch with no luck.

Can someone help me out here?

Thanks in advance

i think the fuses for your power locks are under the glove compartment.