Volkswagen Passat high oil consumption with frequent EPC codes and suspected oil leak into cylinder on Volkswagen Passat

Some Volkswagen Passat owners report experiencing high oil consumption alongside frequent EPC codes and suspected oil leaks into the cylinder. Common symptoms include excessive oil consumption, low oil pressure warnings, rough idle, lack of power, ticking noises from the engine, and black tailpipe emissions. Specific diagnostic trouble codes (DTCs) such as P2336-P2339 have been associated with these issues, indicating potential problems with knock sensors, injectors, and oil consumption. Some owners have found that performing a "piston soak" to de-carbon the cylinder combustion chambers and piston rings can alleviate oil consumption and hesitation. The 2012-2019 Volkswagen Passat models equipped with the 1.8L and 2.0L TSI engines are particularly affected by these oil consumption problems. Repair costs for excessive oil burn in a 2014 Volkswagen Passat can average around $1,450 at approximately 82,350 miles. Volkswagen has acknowledged piston ring issues in some engines, and replacing them has resolved the oil consumption problem for many owners. It is essential for affected owners to address these concerns promptly to prevent further damage and ensure the vehicle's performance and reliability.