别克林荫大道2010-2013款3.0L氧传感器 12616203 0258010134 专车专用

When your Buick LaCrosse (2010-2013, 3.0L) shows MIL, abnormally high fuel consumption, weak acceleration, or idle instability, it usually means the oxygen sensor has aged and cannot accurately monitor oxygen content in exhaust. It should feed the ECU with air-fuel ratio data to maintain optimal combustion efficiency, lowering emissions and improving power response. OEM: 12616203 (compatible with 0258010134); designed for 2010-2013 Buick LaCrosse 3.0L to ensure OEM match. Install cold, use a dedicated socket for careful removal, avoid damaging threads or harness connectors, and follow repair manual torque specs.