Touareg: 2010 V6 TDI
Join Date: Jan 2007
Location: Baltimore, Maryland
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Where I think I am at is that the white smoke and oil burning smell is normal but is normally all vented through the CCV (on a diesel) and the PCV (on a gasser). The CCV vents off condensation produced from an engine that is heating up and cooling off as well as blow by oil (burning oil smell) and internal engine pressure that builds up from engine use. A working CCV sends this normally downstream into the exhaust. When the vent is clogged, longterm, it can lead to water in the oil, and the pressure will need to find another way out- blowing off the oil cover cap (a big mess), coming up through the dipstick (also a mess but unsure if this would occur on the V10 since it I think is rather unique in this regard as it has a valve that closes off this area- hence no oil read on the dipstick even though the sump is full), or finding a way to seep out through a weak spot in an engine gasket and the resultant "blown engine gasket".
I will dig more into this later. I think the CCV can be easily cleaned but I don't know if eventual clogging is inherent and normal or if it is more related to oil brand/type related (49k on Treg with a clogged CCV seems premature to me). Oil overfilling could also cause this but I have changed my own oil from day one and have not overfilled.
If anyone can confirm whether or not I am on the right track with the CCV vent that would be good?
'05 PassatTDI, Reflex Silver, '10 TouaregTDI, Campanella White, '11 GolfTDI, Blue Graph. Metallic
'01 JettaTDI (retired), '06 TouaregTDI, Campanella White (retired)