Renault Lada Oxygen Sensor 7700871544/7700100713/0258003644 Universal Multi-OEM Compatible

When Renault or Lada models exhibit rough idle, noticeably higher fuel consumption, weak acceleration, or frequent check engine light, this usually indicates aging or failed oxygen sensors. In normal operation the oxygen sensor feeds real-time air-fuel ratio data to the ECU, ensuring efficient combustion, reduced emissions, and optimized fuel economy. Compatible with OEM numbers 7700871544, 7700100713 and 0258003644; fits Renault and Lada multiple standard models. Use a dedicated socket to remove the old part; avoid damaging threads, ensure sensor wiring is secure and avoid exposure to high-temperature exhaust areas.