BMW E60 E61 X5 E70 X6 E71 X3 E83 E91 E92 Exhaust Temperature Sensor 7798486

BMW E60 E61 X5 E70 X6 E71 X3 E83 E91 E92 Exhaust Gas Temperature Sensor is an original part from the Lambda Sensors and O2 Sensors group, designed for precise monitoring of exhaust gas temperature in selected BMW models. A used OEM component ensures proper cooperation with the factory engine control unit, stable exhaust system operation, and correct functionality of component protection strategies. This is a solution for users looking for a technically matched sensor at a reasonable price.

Specifications and technical data

• SKU: 7798486
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7809157
• Substitutable numbers: 13627809157, 7809157, 13627798486, 7798486, 02265600-2151
• Category: Oxygen Sensors

Purpose and Role of the Exhaust Gas Temperature Sensor in BMW

The exhaust gas temperature sensor in BMW 3 Series, 5 Series, and X models is responsible for continuously measuring the temperature in the exhaust system and transmitting this data to the engine control unit. Based on this information, the ECU corrects the fuel injection, controls the diesel particulate filter regeneration process, and protects the turbocharger and exhaust components from overheating. A properly functioning sensor helps reduce the risk of expensive component failures and supports the maintenance of stable engine operating parameters.

Advantages of Using an Original BMW Sensor

Choosing an original BMW exhaust gas temperature sensor from the Lambda Sensors and O2 Sensors category means maintaining factory measurement characteristics and full compatibility with the control unit's software. In practice, this translates to:

• consistency of readings with other sensors in the exhaust system,
• proper operation of OBD diagnostic procedures,
• reduced risk of exhaust gas temperature-related errors,
• maintenance of stable engine operation across a wide range of loads.

A used OEM part is a good choice for drivers who want to restore proper exhaust system functionality while maintaining a reasonable service budget.

Selection by Numbers and Electronics Compatibility

When selecting an exhaust gas temperature sensor for BMW, matching by OEM part number and interchangeable numbers is crucial. This allows verification of compatibility with a specific engine version and vehicle year, as well as avoiding problems with signal interpretation by the control unit. This sensor model belongs to the group of electronic components that work directly with the ECU, so correct matching is important for both durability and service diagnostics.

If you want to better understand how to safely choose used modules and sensors, it's worth checking out the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Used ECU Modules and Sensors?. You will find practical tips on selection by VIN and OEM numbers, as well as issues of hardware and software compatibility.

Condition, Verification, and Service Application

The offered BMW exhaust gas temperature sensor is a used part, which means it comes from disassembly and has been verified for its suitability for further use. This type of component is particularly useful in situations where:

• errors related to exhaust gas temperature or DPF filter regeneration occur,
• the engine enters limp mode due to incorrect readings from the exhaust system,
• a damaged sensor needs to be replaced without investing in a new part from an authorized dealer.

A correctly selected and functional sensor helps restore proper engine operating parameters, reduce excessive fuel consumption, and minimize the risk of further exhaust system failures.

Related Products and Measurement System Expansion

If you are also looking for other BMW Lambda Sensors and O2 Sensors for your car – for example, to expand diagnostics or for a comprehensive replacement of measurement elements in the exhaust system – check out our dedicated category: BMW Lambda Sensors and O2 Sensors. You will find a wide selection of compatible components that will help maintain the consistency of the entire measurement system.

Summary

The BMW E60 E61 X5 E70 X6 E71 X3 E83 E91 E92 Exhaust Gas Temperature Sensor is a used, original part from the O2 sensor group, designed for precise monitoring of exhaust gas temperature in selected BMW models. When correctly selected by numbers and properly installed, it supports proper exhaust system operation, engine protection processes, and OBD diagnostics, representing a reasonable and technically safe service solution.