Noticed oil all over the intake side of the turbo, did some research and found it's probably the turbo pulsation damper seal (great name!).
Following this guide over on another forum was really helpful and I thought I would post to help others. http://www.vwaudiforum.co.uk/forum/...e-on-turbo-face-and-or-output-charge-air-pipe
Started by removing the intake pipe
You can really see the leak now...
Breather hose was a bit stubbon, glued by dry oil to the damper.
Damper and seal removed, the leak was worse than I thought.
The original bolts that held it on, the silver on the bottom and the black on the top. Interestingly it looks like this job was done before, and they probably dropped the bottom bolt and got another. While removing these I noticed the top bolt was very loose and probably the main cause of the leak.
Anyway cleaned up the damper and used shiny new parts. Turns out the re-usable hose clip from the A8 (same engine as my A6) is just a jubilee clip if you want to save yourselve some money.
Part Numbers and prices for anyone interested;
059129193C - Seal/Gasket 14.15 + VAT
N91054301 - Clip (from A8, not listed as compatible with A6 but it's the same engine) 4.71 + VAT
N90958902 - Bolts (2x) 0.74 for 2 + VAT
Cleaned as much of the residue off and re-installed, looking much better
Bottom bolt was a little painful, ended up using a bit of grease to hold it onto the bit and not drop it. Also used some threadlocker on both to stop them backing out again.
Re-assembled and running well, only time will tell if it solved the leak!
Following this guide over on another forum was really helpful and I thought I would post to help others. http://www.vwaudiforum.co.uk/forum/...e-on-turbo-face-and-or-output-charge-air-pipe
Started by removing the intake pipe
You can really see the leak now...
Breather hose was a bit stubbon, glued by dry oil to the damper.
Damper and seal removed, the leak was worse than I thought.
The original bolts that held it on, the silver on the bottom and the black on the top. Interestingly it looks like this job was done before, and they probably dropped the bottom bolt and got another. While removing these I noticed the top bolt was very loose and probably the main cause of the leak.
Anyway cleaned up the damper and used shiny new parts. Turns out the re-usable hose clip from the A8 (same engine as my A6) is just a jubilee clip if you want to save yourselve some money.
Part Numbers and prices for anyone interested;
059129193C - Seal/Gasket 14.15 + VAT
N91054301 - Clip (from A8, not listed as compatible with A6 but it's the same engine) 4.71 + VAT
N90958902 - Bolts (2x) 0.74 for 2 + VAT
Cleaned as much of the residue off and re-installed, looking much better
Bottom bolt was a little painful, ended up using a bit of grease to hold it onto the bit and not drop it. Also used some threadlocker on both to stop them backing out again.
Re-assembled and running well, only time will tell if it solved the leak!