Passat B5/Audi C5 2.8 Rear Right Oxygen Sensor 0258006314 078906265P, Vehicle-specific

Front oxygen sensor replacement for VW Passat B5 (1997-2005 2.8L V6) and Audi C5 (1998-2004 2.8L V6), OEM numbers 0258006314, 078906265P. Vehicle-specific fitment ensuring exact match to exhaust system. Monitors exhaust oxygen content and feeds ECU to optimize air-fuel ratio, improving fuel economy and reducing emissions. Replacement difficulty moderate; use a dedicated oxygen sensor socket to avoid thread damage.