Dear friend ! If so downloaded v24 (v.26 too) by me and burned on the disk could work perfectly if I understood it right. And I can without special risk to stick it in tray of the unit? Which one of them ?
Or may be better not to create a headace and bring car to the dealer ( it is still on warranty 41k on it) and let him to do the dangerouse job? What the interesting part ( I hate it !) they never perform anything in service , unless you tell them what should be done.
regards dzhoka