[golfball]

I'd bring it back to the dealer.

The MKZ has had previous complaints or poor quality control.

You bought the car so if you have those QC problems I'd get them fixed through the dealer.

 

[golfball]

any updates richard?

 

[golfball]

honestly most of the time its just the plate rattling.

 

[golfball]

not neccesarily loose.

plates are thin aluminum.

When you mount the plate on by only two screws on top. the bottom of the plate isn't secured so when you close the hatch/trunk it rattles. ive seen this with alot of cars.

 

[golfball]

you dont have to do that just put stick some foam behind the 4 corners of the plate