Strange vibration, buzzing at full throttle and high gear

Aug 12, 2019
15
1
Dear members!
I have a 2015 all-wheel drive Seat Leon X-perience type car, 184hp, 2.0 Crtdi, with DSG gearbox, which has an ABT electronics, which in theory can give the engine 210hp and 420nm.
This is how I bought it used, the car currently has 163,000 km on it.
Approx. it started a year ago that the whole car vibrates at certain speeds, at high throttle, at first only slightly, but it got stronger and stronger and now I decided that I should look for the cause.
It was at a dealer, where they replaced both front inner joints, which made it a little better, but it didn't go away, it's still annoying.
The phenomenon is approx. from 1900RPM to 2300RPM the car resonates undulatingly on floor gas, less so in 4th gear, 5th-6th. significantly.
It vibrates at 2,000 rpm, stops at 2,100 and starts again at 2,200.
That's when I noticed that it's actually as if the clutch slips on full throttle in 3rd and 4th gear, in 3rd it's hard to notice because the rpm changes quickly, but in 4th, if I press the throttle from 1800, it suddenly jumps from 2000RPM to 2300, it stops a little there and grows steadily again.
After reading it more closely, they wrote that the DSG gearbox can also cause this vibration, so I dared to ask you if you have ever encountered a similar problem?
DSG oil was changed at 152,000 km.
DSG reset adaptation via VCDS was done but no changes.

Thank you for your help!
 
Aug 12, 2019
15
1
It could be the dual mass flywheel too.
I recorded two video with start-stop and slight reving, the engine is cold.
The first video i changed gears to P->N->D-> R and back to P.
What do you think from the sound, is it bad?
LINK
LINK2
 
Aug 12, 2019
15
1
I checked the engine mount, i found little squeezing rubber, one side, and other i can barely put my finger to the frame and rubber.
Is this ok, or worn out?
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