Oo-er! 'Steering Wheel Lock Service Required' message!

[froggyted]

Mild panic! I went to start the car (08 S40 2.0D) today to make the return journey home, needed to briefly get back out of the car again, and thought i felt a bit of unusual resistance returning the key back to the '0' position (possibly my imagination). When i put the key back in the ignition to start the vehicle, i had the amber warning symbol and a message: 'Steering Wheel Lock Service Required'. When i tried to start the car there was no power. This was resolved when i took the key out of the ignition and had another go - back to normal. I didn't dare tempt fate, so drove back home without further ado. On the drive at home i repeated this procedure several times and all seemed fine. Maybe it was just a glitch, maybe i accidentally did something unusual, but i'm just a bit worried i might get stranded in the middle of nowhere and be unable to start the car. Has anybody on here had any experience of this issue, or in a position to make any suggestions?