Seat Exeo tdi 170 CR engine noise on idle

[Tommy]

2012 Seat Exeo tdi 170

Car is out of warranty only 32k on the clock

Making a strange noise under idle - from the outside outsides like a sub woofer.

Seems to be coming from the drivers side

Any ideas? Video below:#

 

[heavyoilhenry]

Check the airbox, I had and A4 and it made a strange noise under idle in traffic. It turned out to be the aibox lid/body was loose where it went together amplifing the induction noises.

 

[Tommy]

Checked the airbox, seems to be ok.