Hi!

I've done a topic like this before but want to try kick it into action again after using my Fab VRS as a bus yesterday!

With only a small load in my car (3 persons) (and sometimes me when I've eaten a large meal lol) there is on occasion a LOT of hiss on boost..actually more whistle than hiss but it is abnormal..Nothing like I ever hear on any other TDi engine'd car and more importantly..not on other VRs'.

Last time I posted I shrugged it off as normal but it clearly is an issue as there is a very slight loss of boost power and its only when the car is on a heavy load and thus under a lot more pressure.

I've had all the boost pipes off and everything appears secure..just wondering really if anyone can advise me..what's next?!

Anyone on here from Ipswich/Suffolk able to give me a hand diagnosing?

I am doing my best to try get a recording but it doesn't happen all the time and so far my recording in the engine bay has come up with a standard boost sound only!!!

Any news on this ?

get your system smoke tested

I'm in Colchester if you want me to have a look, I had a similar problem and have been advised to change the seals in the boost pipe joins. I have them just haven't done it yet.

My wifes A3 130 is the same as the fabia VRS. Upper intercooler pipes either side of the pancake pipe are whats wrong. I have them to do on the A3, top one looks easy, the short lower one looks like a PITA to me, but hey ho.

I'm in Colchester if you want me to have a look, I had a similar problem and have been advised to change the seals in the boost pipe joins. I have them just haven't done it yet.

Hey Sharpyy, Colchester here too... ish

My wifes A3 130 is the same as the fabia VRS. Upper intercooler pipes either side of the pancake pipe are whats wrong. I have them to do on the A3, top one looks easy, the short lower one looks like a PITA to me, but hey ho.

It's fairly easy with the bumper off, it's a Sunday job for when the better weather gets here!

Hey Sharpyy, Colchester here too... ish

Hey whitep, hope to see you around!

At the moment I am the one with the bonnet up at the side of the road a lot! :-(

Comes with the territory of mods! I have access to a workshop if you need any help

Hi,

Just realised people have posted on my post! I've got hold of a compressor and I'm going to do a boost check to hopefully find the leak within the next couple of weeks.

If I don't find anything I'll post again and then maybe I can help other people out with my compressor and test kit..!

Did you find anything?

Ah yes to update! ( couldn't find this post!)

after testing with the bumper off I found it to be the bottom boost pipe.

You can only tell by putting a good 18psi in the system and it's a quiet hiss which gets worse if you jiggle the pipe.

replaced pipe at the hefty sum of 100 quid for six inches of rubber and it's 90 percent gone!

I suspect the last whoosh noise I get is from the coupler on the turbo and this is rare now and only happens if you really thrash the car.