Yes...This is why my MKX was delayed 6 months. I mentioned this in a previous post. There were issues with the early builds then the bugs were addressed. When my vin when down the line there was an issue with 3 items
>batteries dying for some reason
>water leak drivers A-pillar
>electric steering harness
He said when they find the same problem twice in a shift, that entire production is held in a holding area outside. Then one by one each vehicle is brought in to be inspected by the mechanics and engineers until they find the root cause. The process continues 24-7 until the defects are found. He said it's a priority because every MKX going down the line is sent outside and not shipped.
Once the problems are found and corrected, then the first vin with the new changes is shipped if the defects prove to be corrected. Then the larger problem begins.
Each vehicle outside has to be brought in to stalls and inspected to see if one of the listed defects exists and make the corrections. Then sent them to shipping. This happens 24-7 until the last vehicle is repaired.
One final note: he said 95% of defects are due to supplier quality issues. He said the penalties and costs to suppliers that fail is substantial. He said the new MKX has rigid guidelines because of the parameters to achieve quality with cabin noise, safety, performance etc.
So, my vehicle was held up in that batch but did not have any of the 3 defects. Ordered it July 15 got it just before xmas.