TSI squeal noise problem on acceleration

[guliver_twist]

How far away is the longerm fix?

[Tommy]

Hi There

I just had my DSG replaced under warranty and it seems to have made the supercharger screech disappear so I'm wondering if this is just a coincidence or if the noise is related to the transmisison in some way?

[guliver_twist]

Hi There

I just had my DSG replaced under warranty and it seems to have made the supercharger screech disappear so I'm wondering if this is just a coincidence or if the noise is related to the transmisison in some way?

Should not be...as mine is manual and exhibits the squeak..

[Paul_OH]

Back to the MkV, I just returned from a 3200km driving holiday and upon return nary a squeak to be found. I can't make it happen no matter what I do, strange and eerily quiet!

[rosslm]

Here is a good overview of the technology, I suggest the electromagnetic supercharger clutch may have been changed slightly since the original GT 125KW where it doesn't seem to be as problematic. Or a slight change of design or possibly a batch of clutches causing noise problems in Golf VI TSI 118. I suspect it is in the dynamic supercharger range from approximately 2000-3500 RPM that this noise would be annoying as it can cut in and out depended on load variation at a steady speed

see

http://www.volkswagen.com/vwcms/mast...echnology.html

click TSI twincharger link

next click More efficiency link and [1] The interplay of turbocharger and compressor [2] Dynamic compressor control

then click More Power link and [1] The individual components [2] Processes when pulling away

I have read some posts where the compressor can be heard at idle, this may be the case after hard driving where the motor management system is anticipating the need for charge at idle speed, normally at idle the supercharger is off

this will give a good overview of the technology

hope this helps

[cktsi]

see

http://www.volkswagen.com/vwcms/mast...echnology.html

click TSI twincharger link

next click More efficiency link and [1] The interplay of turbocharger and compressor [2] Dynamic compressor control

then click More Power link and [1] The individual components [2] Processes when pulling away

That's a really cool link!

And yes... even on the website, when I press the accelerator hard in the Flash presentation I get the squeak, so it must be a feature!!



(just joking)