Carbon Build Up

1120JettaTDI

Active member
Joined
Mar 19, 2011
Location
USA
TDI
2011 Jetta TDI
Do the 2011 Jetta TDI's have variable vanes in the turbo? What controls boost? Im curious if carbon builds up on the egr, intake, or turbo vanes over time? About at how many miles should I expect them to need to be cleaned?
 

Mach1

Vendor , w/Business number
Joined
Sep 27, 2005
Location
Spicewood, Tx.
TDI
05.5 Jetta 5 spd, 06 Jetta DE DSG, 04 F250 6L, 2000 F250 7.3L
Yes, VGT...No build up..Very clean burning diesel, even with 2 EGR systems..
 

740GLE

Top Post Dawg
Joined
Aug 19, 2009
Location
NH
TDI
2015 Passat SEL, 2017 Alltrack SE; BB 2010 Sedan Man; 2012 Passat,
Yes, VGT...No build up..Very clean burning diesel, even with 2 EGR systems..

no build up should happen, but it all depends on how you drive it, many here have had very little issues with carbon junk in the intakes and VGTs, but yet again not too many people have more than 60,000miles on their cars so it's still kinda hard to say how these systems will hold up.

You should be more concerned about one of the sensors heading south than carbon build up.
 
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