In this video, we review the symptoms of a failed PCV breather hose on the factory B9/B9.5 EA839 3.0t equipped S4, S5, & SQ5. This hose fails on stock & tuned vehicles. Symptoms of the breather hose failing are oil evacuating from the oil cap, around the PCV, and the oil cap loosening and/or removing itself in extreme cases.

View the Audi Technical Service Bulletin (TSB): https://static.nhtsa.gov/odi/tsbs/202...

Ashes to Asphalt:    • Ashes to Asphalt - The Tale of the 03...  

Replacement Part Number: 06M-129-041