2001 X5 3.0 rear lock problems

[wildfxp]

Hey guys,

My mom's X5 3.0 is having problems with its rear locks. I'll try to explain it clearly below.

1. When alarm is on and i unlock with my keys, both rear doors do not unlock.
2. When I drive off and the auto-lock kicks in, the rear doors do not lock. It only locks if I push the "lock" from the key.

So basically the rear door locks are inoperable except if I lock the car by the key (setting alarm on). I tried searching, but didn't find any information about this. I hope I didn't search wrong either. If I did, I'm so sorry!

Also, this is a different issue, but how can I disable the auto a/c on when I turn on the car?

Thank you!