I know it's been a while since the last post on this topic but I have had my E70 3.0 for a couple of months and have found the Hold Button issue a bit annoying. It switches over to Park every so often - quite unexpectadly - much to my embarrasment! I only have to move slightly in the seat, possible to look over at the kids in the back seat or to grab something from the glove box and it switches to park. It has been back to the dealer who didn't mention about the sensors in the seat and once I mentioed it to them they took a look at it and pronoinced it normal. I can understand the safety aspect but it just seems to be set way too sensitive.