Wolfsburg R Oily oil filler cap. PCV failure? Crummy seal?

[hardy_bm]

Hey guys,

Loving my Wolf. Has anyone else noticed this? Lots of oil around the filler cap. I cleaned it off and it reappeared within a few thousand kms. No codes on VCDS.

Suggestions?

[Umai Naa!!]

They're not a perfect seal, to be honest.

Maybe just give it a good clean, and monitor how bad it is?

[hardy_bm]

Hmm, I did, and as mentioned, it was back in a few thousand km. I'm just nervous I'm getting piston ring blow by.

[tuzii]

car has warranty why you care

[4got10]

Check to see if the rubber seal on the bottom of the oil cap is still there. Maybe look for a thicker o-ring for a better seal?. Piston ring blow by would result in your sump being pressurised and your dip stick popping out. What is a few thousand kms? 2000, 10000? If you are concerned about the blow by, maybe get a compression test to put your mind at ease.