Can a bad Caliber, warped rotor, stuck or jamming slide pins cause a rumble and skipping without hitting the brakes?

Car is in park. It should not be doing that. It's either the Carrier bearing, flex plates or u joint. Since it's coming from the middle, and I can push it up and down and it makes noise plus I can turn by hand, and it clunks I'm thinking Carrier bearing. But I also think the flex plates are worn as well
they say they should be replaced every 10 years. I'm going to bring it to the shop. It's such a pain to do. I have to remove so much stuff.

I was able to replicate the exact noise it makes when stopping. The noise is almost exactly similar when you let off brakes, just enough that pads are still making contact but not enough to hold the car. It's little hard to hear but if you listen to the background noise and not engine you definitely hear it. Mostly the last eight seconds. I have no clue what it can be. It's very possible it's a mix of everything, drive shaft ECT I'm just bringing it to shop. I don't want to keep throwing money at it.

https://youtube.com/clip/UgkxgKCFTJ77PS23CrRVCkGkA7AEzVWPwZ20. This link will take you to a cut if a video of a bad center carrier bearing. It is making the exact noise my makes by hand. It makes sense now. When I would drive and hit a bump sometimes it would rumble and feel like a spun bearing but go away in a couple seconds and not come back for days or weeks.

The first video on this page is my driveshaft right at the center support bearing. The video on YouTube is someone with a very similar car who's bearing and rubber support is bad. It's the exact same noise and movement. Also, on Mercedes they use flex plates/ flex disc (5 different names used) at each end of drive shaft that connects to differential and transmission. They are a documented known failure point and consider a must replace every 10 year or less item. I'm not talking about the flex plate in transmission. I'm not sure if that's mixing anything up. Just letting you know to clarify. I'm not sure if that's causing all the issues. The support is definitely bad and has to be replaced anyway. Since the driveshaft has to come out you might as well do the flex plate also. As for the breaks everything is cleaned and lubed 5 times now. Nothing is sticking or binding. I'm waiting for the shop next to my house to open. I'm just going to drop it off to them and see what they say.

I am going to replace the right caliper as well. It definitely has something wrong with it. Also, I have noticed something but haven't thought about it much until now. My steering will pull randomly to one side then it will slowly correct itself. I didn't think about it until now since I knew my outer rods were shot. Since then, I replaced both and it still happens. Since the noise seems to be from the right of car I'll start there.

What causes that swirl pattern on brand new pads and rotors?

You want a good laugh. Bet you can't guess what caused it. It's my airmatic compressor. Yes the compressor mimic driveshaft and break vibration and noise. I decided to go back to when it started and it first started doing it after I installed the compressor. Since the bushings are worn and the mounts aren't holding it still it's vibrating. The relay is bad as well it's causing it to run when it shouldn't. I removed relay everything goes away and comes back when reinstalled. The only thing I can feel now is my lower driver side ball joint which I already know is bad and the carrier bearing which Im replacing anyways as it should be every 10 years. I still can not believe a compressor was able to mimic driveshaft and break vibration and noise.

I didn't include it in other messages. I got back from Mercedes about my brakes, and they are working just fine. The guy said since the car has semtronic brakes that's how they operate. Each wheel breaks independent of each other based on traction, road conditions, speed ECT. When in park the brakes will not function fully to prevent unnecessary pressure and heat. There is a lot more that is very technical but that is the very basics of it. They also confirmed that I was right, and the compressor is the cause of everything. They have never seen a broken bracket for compressor cause drive shaft and break like grinding, binding and vibration.

I've removed the relay for compressor 10 times and each time everything stops.
I hooked it back up and it starts doing it again. Mercedes confirmed it as well. Broken compressor bracket caused everything. All the noises, the shaking, the vibration, everything. Since it isn't properly bolted down it's vibrating through the frame. That's why it was so hard to pinpoint the noise and why it was felt in many locations. Also, why it was felt but not really heard. The location in my car muffled the sounds. It also explains why the car would vibrate and make noise at certain speeds. The car is constantly adjusting ride hide based on speed and conditions. I'm happy it's nothing major. I already ordered the new bracket, mount kit and relay. Should be here next week.

Definitely. Once the new parts come and I replace it I'll take photos of everything.

I have the same feeling. Things like this cause so many headaches and can be extremely costly. It may be a while until the parts get here. They aren't stocked and have to be preordered. I can go to dealership and get the whole kit for $225.00 or more but I would rather go through a German car part company and get it the whole kit for $80.00. Even if that means having to wait awhile. The compressor itself is mounted enough that it cannot cause any other issues or break something else. Once everything gets here, I'll take as many photos as possible.

I can almost guarantee when I send you the pictures you're going to say wait what that tiny little thing caused all of it. That's insane what is Mercedes thinking. Why wouldn't they mount it differently?

This is just for now as I replaced my valve block. No bracket yet. Still not here. When driving you cannot really hear it, but you feel it. You can understand how intense the vibration is. This is taken in wheel well just below compressor. The compressor isn't connected to anything the phone was mounted to but still vibrated.