key problem

[Matt5462]

Hello-

Recently our 03 h2 has been having a problem with the key getting stuck and the shifter button sticking. I looked in the older postings and found that this has many elements of the previous posting. I am not quite sure if I would be in over my head in trying to repair this myself, so far I have injected graphite in to the key cylinder and the button opening on the gear shifter, this seemed to fix the problem for about 6 days. Like I had mentioned before that this has many elements in previous posting but I am not sure if this is the same problem requiring a new cylinder and solenoid wire as noted in other postings. Any help would be great