Oxygen Sensor for BMW E60 E61 E90 523I 530I - Front & Rear Lambda Probe Compatibility

About this item

• Maintenance and Replacement Cycle: Oxygen sensors are durable but require periodic maintenance, as their performance deteriorates over time and use. Regular checks and replacement according to manufacturer recommendations are advised to maintain optimal emission control and vehicle performance.
• Function and Purpose: The automotive oxygen sensor is a critical emissions control device that helps the engine management system adjust the fuel mixture by monitoring oxygen levels in the exhaust. This ensures the engine operates at optimal combustion levels, reducing harmful emissions.
• Performance Requirements and Buying Advice: Choosing the right oxygen sensor involves considering specific manufacturer requirements and vehicle models to ensure compatibility and performance. Sensor response time, high-temperature resistance, and long-term stability are critical indicators of quality.
• Diagnosing Faults and Identifying Issues: If the oxygen sensor is faulty, it can cause the engine to work less efficiently, lower fuel efficiency, and increase emissions. Typically, the vehicle's engine management system will alert to sensor problems with fault codes, indicating the need for prompt inspection and replacement to uphold performance and emission standards.
• Types and Locations: Oxygen sensors are typically installed in the engine exhaust system and can be upstream (before the catalytic converter) or downstream (after the catalytic converter). Their placement affects their function and monitoring capabilities.