Steering Lock Fault
Same fault indication on a 57 plate 520d. Put it into my local BMW specialist who have done my servicing for the last 7 years and they put it on the computer and after two days it came out with the fault cleared. Claimed they had to reload updated software several times before fault cleared. Have had it back 2 days and so far OK. They charged just less than £100 which considering how long they had it for I do not think I can complain. Certainly cheaper than buying a new steering column at £1000 plus.