Audi a3 2.0tdi sportback loud hiss when accelorating.

Hi Audi fans,
I have just joined the forum after getting a lot of useful info from posts that have been made here, Thank you all.
I own an Audi a3 2.0Tdi sportback on a 55 plate, yesterday I went on a run and heard a loud "pop" noise but the car seemed fine so I put it down to being something in the road, now the trouble I am getting is when I accelerate to around 1500RPM/2000RPM there is a loud hissing noise coming from somewhere in the engine bay. I think maybe boost pipe split as I still get turbo but maybe not 100%.

Can anyone offer some advise before I start jacking the car up and getting in a right old mess.

Thank you all in advance its a great forum.

Zac.

Hi guys,

Thanks for the reply's, I have found the problem its the turbo elbow pipe hose part number(1K0 145 790 C).
I have ordered the part from Ebay it cost me £27 including postage
There was a huge split in the pipe that explained the popping noise.
I had attempted a quick repair until my part gets delivered with a hell of a lot of black electrical tape but as soon as I put my foot down pop went the tape. I will let you know how I get on with the new pipe when it arrives.

Thanks again for the advise.

Hi guys,

Thanks for the reply's, I have found the problem its the turbo elbow pipe hose part number(1K0 145 790 C).
I have ordered the part from Ebay it cost me £27 including postage
There was a huge split in the pipe that explained the popping noise.
I had attempted a quick repair until my part gets delivered with a hell of a lot of black electrical tape but as soon as I put my foot down pop went the tape. I will let you know how I get on with the new pipe when it arrives.

Thanks again for the advise.