driver door on 1996 BMW 318ti

door is loked and key wont open

Asked by for the 1996 BMW 318ti
2 answers
The key is subject to wear, and getting a new key cut at the dealer resolved the problem for me. Keep the locks lubricated with a good lub, designed for locks.
spray WD40 on the keyholes..
seems to have this prob when it rains..
it usually works after spraying wd 40 on it