Boost leak??

[betty_swollox]

What are the symptoms of a boost leak?


under load the car is making a slight fluttering sound. Doesn't seem to have lost any power to be fair. Just that weird noise which I've never noticed before!


EDIT: I will try to get a video of the noise but it is difficult to do it while I am driving lol

 

[crigisback]

This was mine is it anything like this

http://www.seatcupra.net/forums/showthread.php?t=330160

 

[betty_swollox]

This was mine is it anything like this

http://www.seatcupra.net/forums/showthread.php?t=330160

Exact same noise lol.

Just checked that thread and saw that you're still having the problems, is that right?


it never used to do it tho. Only been for the past month and it's pretty on and off like.

 

[crigisback]

Yeah mine is still there. I changed the plugs and then had inter cooler seals changed and its still doing it. I am sending it in to have the turbo checked for play and see how we get on

 

[crigisback]

It's driving me round the bend though.

 

[betty_swollox]

Yeah mine is still there. I changed the plugs and then had inter cooler seals changed and its still doing it. I am sending it in to have the turbo checked for play and see how we get on

My turbo inlet pipe came off a day after I got the car. It got put back on and all has been fine until the past month


Is it possible that the hose has become loose?? I wouldn't know where to look if I was going to check it myself.

 

[crigisback]

I am not too mechanically minded either.

If you do find out anything just let me know .

It only happens to me when its foot down to the floor.

Between 3000 rpm and 7000 rpm


I was told to take the inlet pipe off to the turbo and check for play.
I wouldn't know were to find the bloody thing

 

[betty_swollox]

I am not too mechanically minded either.

If you do find out anything just let me know .

It only happens to me when its foot down to the floor.

Between 3000 rpm and 7000 rpm


I was told to take the inlet pipe off to the turbo and check for play.
I wouldn't know were to find the bloody thing

Yeah same here mate. It's most noticeable when nailing it in third like. Just went for a blast before I went to get petrol and I couldn't really hear it. It just comes and goes, its ****ing weird


And I am also a technical mong, so I won't be trying owt meself LOL

 

[betty_swollox]

Took the car into the garage and they couldn't find any problems. There were no loose/split pipes

Anyone got any ideas?

 

[jc_boc]

Are you running stage 2 or something? Do you have an induction kit? Mine started making a stuttering noise since going stage 2+ which is normal apparently.

 

[AdamRoutley]

could it be a torn recirc valve?

 

[Marshall]

Yeah even when running stage 1 the fluttering noise is normal which you only get in 3rd gear and upwards.
Sure it's something to do with boost regulation.
As for crigisback this is not the noise you have.


Sent from my iPhone

 

[Brinkz]

So that 'flutter' is normal kev?? I started worrying when I read this - I did like the sound, bit like an aggressive flutter - but don't want it if shouldn't be there.

Pitfalls of my first turbo, have no idea what's the norm!!!!

 

[Dean T]

There was me also wondering if the fluttering my k1 has in 3rd gear was a problem waiting to be fixed

Glad it isn't

 

[Marshall]

There's been a few threads on it with videos showing it but on my phone just now will look later.
Yeah when I first heard it I thought something was wrong like the boost was being lost but the car still drive normal.
I don't think you get it on standard tune only once mapped as the boost pressure has increased.
Pretty sure it's the dv regulating boost pressure as full boost is being reached.
Perfectly normal anyway.


Sent from my iPhone

 

[crigisback]

I am taking mine in for a full diagnostic next week, its having a smoke test and pressure test.

If i cant get rid of this noise i am gonna sell it as its is doing my head in!

 

[crigisback]

could it be a torn recirc valve?

i have changed my rev d valve for a new one and it is still doing it!!

 

[robdf2]

I am taking mine in for a full diagnostic next week, its having a smoke test and pressure test.

If i cant get rid of this noise i am gonna sell it as its is doing my head in!

Have you done any logging mate?
I don't see the point in having a smoke test or leak down test if your logs are ok?

Apart from the noise does the car still perform ok?
It's probably just a trait and you will end up going mad trying to find out what it is.

 

[crigisback]

Not done any logging I don't know how to or have the kit to do it.

I am hoping the garage will do it (vag specialist ) will do it.

No real loss in power just a slight hesitation at about 5k rpm

 

[betty_swollox]

Took the car into the garage a few weeks ago and they found nothing wrong


Now for the past week the car seems a bit jerky when its idling??


I was out today and as I put my foot down, it started making a rattling sound and I lost power. I tried to do the same after the next roundabout and I lost power and then engine management light flashed on and off


Managed to drive the car back home ok, but when I put my foot down it makes that horrible rattling sound


This happens even if I gradually put my foot down as well


Any ideas??? Going to get it looked at tomorrow if possible