[markyboy76]

Hi im new to this forum so hello everone.

I have a SEAT Leon FR tdi 150 PD with engine code ARL which I have only owned 3 weeks. I have some turbo chatter when I lift off the throttle. Its quite loud and is annoying me. I believe they all do it to some extent but mine is loud. I have tried the following already and have mentioned other repairs which are not related.

Decat - made no difference to noise
Pipercross filter - made noise louder unsuprising really
Camshaft and followers - no difference to noise, changed because of slight wear
Full service incl all filters - no difference
Checked boost hoses for condition all good
Checked VNT by removing actuator and feeling for stuck vanes, free as owt
Checked VNT actuator by getting a mate to rev car, seems to move rapid and free
Checked VAG COM - no faults
Boost map shows slight overboost

Any ideas?

I am thinking along the lines of bad N75 or ECU map which is a very long shot.

 

[Keithuk]

Welcome to the forum Mark. welcometomyturbodies

I suggested you should come here and you've arrived. I believe you talked to John today because had had a similar noise and they changed the turbo under warranty on his?

You could add 2005 to the car spec for reference.

 

[Seatman]

welcometomyturbodies

Good site eh?

 

[markyboy76]

Welcome to the forum Mark. welcometomyturbodies

I suggested you should come here and you've arrived. I believe you talked to John today because had had a similar noise and they changed the turbo under warranty on his?

You could add 2005 to the car spec for reference.

Hi Keith. Yep his car still has this noise too even after a new turbo! I can't believe it could be just how they are supposed to sound! Its not a nice sound, like a little dog bark is another way ive heard it described.

 

[Keithuk]

Hi Keith. Yep his car still has this noise too even after a new turbo!

I don't remember you saying you bought a new turbo only you stripped it and it looked ok?

Oh and you didn't say its a VAG-COM clone using VCDS-Lite did you?

 

[markyboy76]

I don't remember you saying you bought a new turbo only you stripped it and it looked ok?

Oh and you didn't say its a VAG-COM clone using VCDS-Lite did you?

Your mate John had a new turbo and still has the same noise so im not gonna be putting A new turbo on mine to try to fix it! Yes I have VCDS freeware not full version. Anyone got any ideas yet?

 

[Keithuk]

I presume you must have google it this problem?

http://www.seatcupra.net/forums/showthread.php?t=8951

http://www.seatcupra.net/forums/showthread.php?t=7601

http://www.seat-forum.co.uk/forum/viewtopic.php?f=713&t=59984

http://www.vwaudiforum.co.uk/forum/showthread.php?t=30471

Some says this is normal and some say its the dumpvalve

Is this the noise?

http://www.youtube.com/watch?v=HeRKfRU3un4&feature=fvsr


http://www.youtube.com/watch?v=Ewv47okHrrM

http://www.youtube.com/watch?v=BjKo7DaHOS8

http://www.youtube.com/watch?v=FBueNnxyYlg&feature=related