Vibration thru accelerator pedal - Cupra TDi

Hi all,
Having a few issues with vibrations thru the accelerator pedal when under load (hard/foot down) accelleration.

2004 (54) leon cupra tdi

Car has 92000, just had it serviced (pretty sure the vibration started after the service too...)
Only had the car for about a month, but done about 1500miles so think I can tell its changed.
took it back to the garage and they cant seem to find a problem tho (garage ive used for about 10 years, so trust them mostly)
just not sure thers nothing up?

any suggestions or am I looking a DMF issue here?
Anythng else I can check?

No obvious clutch slip
Car accellerates well too
No big kncks or anything like that - just vibration thru the pedal

I have a golf gt tdi (2003 130bhp one) so have a benchmark of a similar engine/setup and the golf doesnt do this.

hmmm

any help appreciated!!

not sure... - gonna make some notes on my way to work tomoro as to exactly when!
any reason why around 2k?

hmm
will check tomoro mate
hopefully someone else will join in with a answer too!

garage just told me to monitor it - see if gets better/worse over time?
just dont want to be causing damage

dunnno if a loose turbo pipe connection could cause vibration like this?
tickover seems fine too

strength in numbers eh
hoping its nothing serious - only had the car for lil while!

hoping its a bush or something
gonna give a while and see what happens - keep an eye on it

seems to be when accelerating (under load)
and not related to a specific rev range...

seems possible to be the dog mount bush as it would be worse under load??
will jack it up at the wknd and have a look to see what the bush looks like

doesnt look like an expensive fix (possible pita with removing bolts tho..)