My 1.9 tdi Octavia has started sounding a little rough in the past day or so. Thought it might be a leaking exhaust as it sounds worse at load at low rpm but not so sure. Don't think the performance or economy has dropped, seems fine otherwise.

 

I took a video capturing the sound at idle, its not as bad as under load but you can still here it a bit. Anyone have some idea of what it might be before i take it to the garage. Seems to be coming from the left half of the engine bay. Just been serviced ironically...

 

 

Edited 27 April, 20179 yr by movaado

Possible water pump