Volvo S80 I 1998-2008 oxygen sensor 9202988/8670276/0258007137 universal replacement

When Volvo S80 I (1998–2008) experiences unstable idle, weak acceleration, abnormal fuel consumption, or engine warning lamp on, oxygen sensor aging or failure is likely. Normal operation: continuously feeds ECU with exhaust oxygen concentration to help precisely control fuel injection. This universal replacement fits OEM numbers 9202988, 8670276, 0258007137 and compatible with all S80 I models. Installation requires cold vehicle operation, and use of a dedicated socket to avoid thread damage; after installation, clear fault codes and road test to ensure sensor signal is normal.