Oil line freeze-up?

[Hawkey]

1st time poster and proud A6 owner (when it is running properly!).

Anyway, I was wondering if anyone has some information on a problem I have been experiencing this winter. Excuse me on my lack of engine knowledge as some of the information may seem like I am a bit clueless.

On two occasions this winter (Alberta, Canada) the oil system of my car (2.7T) has been plugged up and sent oil through the intake(?) and it has settled in the turbo intake tube. It sends additional exhaust fumes and sputters when this happens. The last time it happened I checked the oil level and when I pulled out the dipstick it released a shot of air suggesting something is backing it up. On the last occasion I experienced the problem I turned off the engine and then started it again after a couple of minutes, the engine ran fine and there was no additional exhaust.

Has anyone experienced this problem and have any information to help guide my mechanic and myself to pinpoint the problem, and thus, avoid a bunch of additional sleuthing?

[nemohm]

High crankcase pressure is an indication for “breather hose” – pressure regulating valve (working as a pcv valve) plugged.
(Make sure you get the “cold climate” application).
Turbo intake hoses have always oil in (at least many mechanics state it). The amount of oil is of importance here.
I’m not sure if oil could enter the intake from other direction but turbos.
If your car mileage is 60k km and more you are most certainly due to oil leaks fixing.
German cars have very often leaks….
Audi manufactured 2.8 and 2.7 engines for 15 years and never fixed the leaky seals and gaskets.
As we speak my car (03 A6 2.7T) is in for leaks fix (cam adjusters and breather hose) (in Calgary).
You might have more than one problem. Monitor the car after the cold is over.
Hope no more -37C this winter…