HELP! Very Loud Engine Noise A3 1.6 TDI 8v

[BlueOutThwLighy]

What is this sound related to?

I have changed injectors a year ago and glow plugs a month ago

 

The noise started recently and got louder by the day

It's unbearable now and always there whether Im in idle or driving, a few second I hear then stops then back

I initially thought it was just a brake disc as it is more pronounced when coming to a full stop but as I opened bonnet I am hearing it from front/front left of engine mainly

I stopped driving for now

Engine oil always changed in good time using Castrol

Changed cambelt&waterpump at 70-75k

Mileage: 105k miles

 

No warnings on obd2

 

 

Edited 5 hours ago by BlueOutThwLighy