L322 ignition key wont turn

Hi All
Hope someone can help me out, here is my problem

When I put my key in the ignition it wont turn I can hear the steering lock opening and closing it does this about 3-4 times then stops and I cant turn the key if I keep trying it does finally let me turn the key and start the car, I have read about pulling fuse 18 and waiting 30 sec but that hasn't worked for me.

advice needed
Danny

Mine did exactly the same as this - took them 7 weeks of trial and error to sort it - but sorry never got a good explanation as to what was wrong.

The fact the steering lock cycles means it is struggling to pick up on the little tiny chip inside the key.

It should be located inside the key and the closest point to the key blade so the coil that surrounds the ignition switch can pick up on it....

It is either this little chip has moved, or the coil surround is getting an intermittent power feed.....the ignition switch is a common fail item on the earlier L322's....it may just be that!

Recovered a Sprinter van the other day that had "lost" its key. Key wouldn't turn...steering lock was on.. nightmare to load it. Not sure what the cure is... new chip? recode?

thanks for the replies.
I will check both the keys thanks and hopefully its that.... on a side note is it right that I can only have 1 key registered at any 1 time (when I link up the second key to the car it cancels the 1st so remote locking is cancelled)

is the coil surround part of the ignition switch?
any recommendations on where to buy the switch if needed

thanks