Okay so I might try and approach BMW for goodwill in a few weeks and see how far I get.
A new steering rack looks like it will cost in the region of €2000 including fitting and coding.
Part number is: 32106793458 and it runs around €1700 plus you need to give the old rack back if using an indy for a rebate else the cost if higher.
Any ideas of options where to source a new rack? I can have my indy order it if a trade account is needed for a better price.
Help / advice welcome.