2010 Quattroporte door wont open
So after driving my QP gts in some cold weather last winter after losing the key to my cayenne gts I witnessed the electric door locks acting up due to the cold. Sometimes the doors would not open and sometimes they would not stay closed. Now my passenger door will not open from the inside or the outside. Seems to be stuck on lock. Need some help before I take it 4 hours to the nearest dealership.
Please help. Thanks.