Originally Posted by
Red Runner
HELP! 
I've had my 04 XF for 8 months & have 37K so decided to do the Sticky Key fix. Everything worked great until the reassembly. I can't get the black ring to go back on. The spring loaded metal part on the perimeter of the key housing that fits inside the black ring will not retract so that I can get the black ring on. (This is not the plastic detent that lets you take the key out of the lock. That part works fine.) What am I not doing? I put the transponder ring around the lock assembly without the black ring & I can start my car so at least I can get the car out of the garage.
maybe your key assy is not forward enough for the ring to grab, I did have that happen to a friend when he did his good luck jim