BMW X5 540i 740i 2019 Front Oxygen Sensor 11788689862, First Choice for Stable Air-Fuel Ratio

This oxygen sensor is designed for BMW X5 (E70, 2014-2018 3.0T), 540i (G30, 2017-2019 3.0T) and 740i (G11/G12, 2016-2019 3.0T) models with B58 or N55 engines, directly replacing the front oxygen sensor position for real-time monitoring of exhaust oxygen content, ensuring precise ECU adjustment of the air-fuel ratio to improve combustion efficiency and reduce emissions. OEM number 11788689862 can be cross-checked with BMW original parts to ensure compatibility. Replacement difficulty is medium; use a dedicated oxygen sensor socket to avoid wire harness damage; after installation, clear fault codes with a diagnostic tool and reset adaptive values. This sensor uses a high-precision ceramic element, fast response, effectively solving rough idle, rising fuel consumption and illuminated warning lights, and is a preferred part for stable supply to B2B buyers.