So at the end there is no way out..any idea how many hours of labours ?

As you recall me (misfire) my X5 2006 4.4i 's doing the same problem.

The X5 is presently to the garage (not the stealers) just want to evaluate the cost if we go with this option.

And what about live with it i.e no fix...at the end winter season is 3 cold months a year.

Thanks