BMW 3 Series E90 E91 E92 F30 F31 LCI Temperature Sensor Exhaust 7805606

BMW 3 Series E90 E91 E92 F30 F31 LCI Temperature Sensor Exhaust is a component from the Lambda sensors and O2 sensors group, designed for precise monitoring of exhaust gas temperature in selected BMW 3 and 5 Series models. Thanks to its OEM factory design, the sensor works stably with the vehicle's electronics, supporting the proper operation of the engine and the exhaust emission control system. This is a practical solution for users who want to restore the correct operating parameters of the powertrain while maintaining favorable service costs.

Specifications and technical data

• SKU: 7805606
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805606
• Substitutable numbers: 13627805606, 7805606, EM
• Category: Oxygen Sensors

Purpose and function in the BMW exhaust system

The BMW 3 Series E90 E91 E92 F30 F31 LCI Temperature Sensor Exhaust is responsible for the continuous measurement of gas temperature in the exhaust stream and transmitting this data to the engine control unit. Based on the sensor signal, the ECU adjusts the fuel dosage, turbocharger operation, and the regeneration strategy for exhaust emission control components. A properly functioning sensor helps reduce the risk of overheating exhaust components and supports the maintenance of stable engine operating parameters.

Benefits of using an original exhaust temperature sensor

Using a component from the Lambda sensors and O2 sensors group sourced from BMW ensures:

• signal consistency with the requirements of the factory engine control unit,
• appropriate measurement characteristics across the full range of operating temperatures,
• reduced risk of diagnostic errors related to incorrect exhaust temperature readings,
• more predictable engine behavior under high load conditions.

For the user, this means more stable engine operation, easier diagnostics, and a lower probability of entering limp mode due to incorrect temperature measurements.

Installation and operational characteristics

The sensor is prepared for installation in the location designated by the vehicle manufacturer, which facilitates service work and reduces replacement time. The design, intended for use with factory wiring and exhaust system threads, allows for standard installation procedures in the workshop. A properly selected temperature sensor reduces the risk of having to disassemble the exhaust system again and avoids additional costs associated with fitting non-original solutions.

Why consider a used OEM sensor

A used OEM component is a reasonable compromise between cost and functionality, especially in the case of advanced electronic components. The original exhaust temperature sensor retains its factory operating characteristics while allowing for a reduction in repair costs compared to a new part. For many BMW users, this is an effective way to restore the proper functioning of the exhaust system without sacrificing the build quality typical of the manufacturer.

To better plan the replacement and understand the specifics of installing used electronic components in a car, it is worth checking the Global Parts guide – it discusses in detail selection by factory numbers, compatibility issues, and practical aspects of installation: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

If you are planning a comprehensive repair or upgrade of the exhaust system area in your BMW and need other components from the same group, such as additional temperature sensors, control probes, or measurement elements in the exhaust stream, check the available parts in the BMW Lambda sensors and O2 sensors category.