Strange noise

[Stefan.m4s]

Hello guys. First post here.
So i bought a 09 mercedes. Its E220CDI W212 automatic and there is a strange noise when accelerating. It sounds like the exhaust has a hole in it. Its noisy only when accelerating around 2000rpm. If you dont rev it and u drive it normally there isnt any noise
Brought it to a mechanic and he lift it up but he said everything is good

 

[LostKiwi]

Split boost pipes are common on these. That would be my first thing to check.

 

[Stefan.m4s]

Split boost pipes are common on these. That would be my first thing to check.

That the one from intercooler?

 

[LostKiwi]

Turbo to intercooler and intercooler to inlet manifold.

 

[Stefan.m4s]

Turbo to intercooler and intercooler to inlet manifold.

All right. Will get that checked tomorrow. Thanks

 

[Stefan.m4s]

Update. I have checked them both. Noise still there. Noise is around 50-60kph.

 

[LostKiwi]

How did you check?

 

[Stefan.m4s]

How did you check?

Took them both down. They were pretty oily but cleaned them and i checked them. Both were ok. No holes or rips