dmk

@JoeBrown I am having the same issue on my 2015 MKZ. Been trying to chase down this vibration for over a year. Glad I came across this thread. Just curious what they charged you for clutch repair kit + install?

Me either but it's fixed. Basically some loose wire connections under the seat and carpet somewhere. When they shook the wire harness they could replicate the issue I was having on demand. To fix they soldered the wire connections. They still are not certain why I was having the problem occur during hot outside temps but either way it appears to be corrected now. I give the tech credit for finding the needle in the haystack on this one.

Update: got my mkz back today. Been in since 6/8 and today is 7/3. We believe the problem has been resolved. They traced mean circuits under driver speed seat VDB06, VDB07, CK pint fit on splice block 48 (c3540), cut out splice. Lock 48 and solder circuits VDB06 and CDB07.

Update 2: it happened again today on the drive home. Almost all electronic accessories just died. A/C, windows, touch panel, power mirrors, daytime running lights, door locks... you name it. Outside temp was only 70 degrees so hot outside temps not the cause. I drove it back to dealer while everything was not working and left it running. The tech came out and hooked it up to a computer and pulled all the codes again (about 4 pages). They kept ithe car and I will update again once I get it back.

Update: Got it back from dealer today, they performed the KOEO self test, vehicle had multiple u codes including u0199, u0200. They searched for TSB and found SSM 45158. Removed driver seat back cover and inspected for concerns but none found at this time. Bottom line they reset all the modules that were flagged and sent me home. If it happens again they would like me to bring it back and they will honor the warranty 50k warranty for this issue even if it's out of warranty, as I currently have a little over 49,000 miles.

Hot day about 95 degrees, and I'm sure much hotter inside the car. I did leave the sunroof cracked and put a reflective sunshade in the front window this morning however to help. The car started fine but no power windows, no climate screen (all options were grayed out except for heated steering wheel, of course), no power mirrors, no air conditioning or cooled seats, and the entire control board (radio sliders, etc) were offend not illuminated. All I had working was the radio, steering wheel controls, seats, and the sunroof. What kind of a luxury car is this? I also had a bunch of error messages such as blis and tpms not working. I got it home and put it in the garage. Once it cooled down everything worked again. I am taking it in to the dealer. I have a hard time believing the car doesn't work when it gets hot outside. If that the case I'm screwed this summer. I am aware that electronics will power off to protect themselves when they get hot (i.e., cell phones), a vehicle is different and I have never seen this happen before on any other car. Has anyone else had this happen?