Noise during the fiesta ST MK8.5 change phase

[Cardinals89]

Hello everyone,
I would like to know if the noise I notice when changing on my fiesta is normal or not. Especially from 1st to second and from second to third gear, I feel like an annoying clunck in entering the gear. I only feel it at low revs. I have already replaced the engine oil with a royal purple plus an anti-friction additive. The machine does it mainly when hot, it's almost not felt cold. Advice? Thanks for who answers

 

[M-Sport fan]

You still have the factory rear motor mount (and the left and right side mounts as well), correct?

 

[Cardinals89]

Yes, all originals

 

[Cardinals89]

Could the problem be related to the supports?

 

[M-Sport fan]

Possibly, as it seems to be a weak point with these cars as Ford tried to quell any/all NVH with very low durometer, very soft, rubber or EPDM bushed engine/gearbox mounts, even when they are brand spanking new.

 

[Cardinals89]

Now another problem has popped up..practically in normal mode especially, keeping the gas constant I feel a slight vibration in the cabin. What could it be? In sports you hardly feel it and mainly I feel it between 2000 and 4000 rpm. Thanks for who answers

 

[Cardinals89]

[QUOTE="M-Sport fan, post: 51946

 

[TyphoonFiST]

If it has DMF/ Dual Mass Flywheel like the mk7-7.5 that could be it.