Turbo Vane Actuator Stuck

[scotta]

My uncle has a mk5 GT TDI 140 and has been having some bother with his turbo. He put it in to get it loooked at today to be told that the turbo actuator vanes are stuck and that its £800 to fix.

Seems a bit steep to me - Thoughts?

[vRStu]

Sounds about right TBH.  It'll be a replacement turbo.

Pretty common and can be fixed by stripping down and cleaning the turbo but the most common route is to simply replace it.

The turbo basically gets coked up inside which jams and stops the variable vanes moving.

Google is your friend on this one.

[Teutonic_Tamer]

This is just one reason why you need to use a good quality LongLife 3 oil - as these have a 'low SAPS' rating - basically, the oil wont produce any soot or ash when burnt.

And don't overfill the oil either.

And don't use cheapo supermarket diesel. 

[scotta]

This is just one reason why you need to use a good quality LongLife 3 oil - as these have a 'low SAPS' rating - basically, the oil wont produce any soot or ash when burnt.

And don't overfill the oil either.

And don't use cheapo supermarket diesel. 

Neglect wasnt the issue! My uncle is fastideous with maintenece and uses top quality oils!

[Teutonic_Tamer]

This is just one reason why you need to use a good quality LongLife 3 oil - as these have a 'low SAPS' rating - basically, the oil wont produce any soot or ash when burnt.

And don't overfill the oil either.

And don't use cheapo supermarket diesel. 

Neglect wasnt the issue! My uncle is fastideous with maintenece and uses top quality oils!

What some may perceive to be 'top quality' may actually be quite inferior - Mobil 1 and Shell oils are categorically not as good as the equivalent Castrol, Fuchs, Motul or Elf.    Ask him what base-stock the oil was formulated from! 

[QD MBE]

Not for your average DiYer, but interesting none the less, it is from a MK4 TDi forum I bookmarked many moons ago.

http://www.technologie-entwicklung.de/Gasturbines/VNT15-Turbo/body_vnt15-turbo.html

[Teutonic_Tamer]

Not for your average DiYer, but interesting none the less, it is from a MK4 TDi forum I bookmarked many moons ago.

http://www.technologie-entwicklung.de/Gasturbines/VNT15-Turbo/body_vnt15-turbo.html

Yes, very good article.  Perhaps the image at the very bottom article explains these beasts the best!