BMW E90 E91 LCI F10 F20 F21 F22 F30 Differential Pressure Sensor 7805758

BMW E90 F10 F20 F30 Exhaust Pressure Sensor is a component from the Lambda Sensors & O2 Sensors category, designed for precise monitoring of exhaust parameters in selected BMW models. A correctly selected exhaust pressure sensor supports the proper functioning of the exhaust system and the engine control unit, which translates into stable engine performance and correct diagnostics.

Specifications and technical data

• SKU: 7805758
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805758
• Substitutable numbers: 13627805758, 7805758
• Category: Oxygen Sensors

Application and Role in the BMW Exhaust System

The BMW E90 F10 F20 F30 Exhaust Pressure Sensor operates in close proximity to the exhaust system, providing the engine control unit with information about exhaust pressure before and/or after exhaust treatment components. This enables:

• monitoring of the fill level of filters and exhaust treatment components,
• more accurate regulation of the air-fuel mixture and injection strategies,
• real-time diagnostics of potential leaks or flow restrictions.

A correctly functioning exhaust pressure sensor reduces the risk of the engine entering limp mode, facilitates the interpretation of errors stored in the control unit, and supports the maintenance of stable engine operating parameters.

Benefits of Using an Original BMW Sensor

The offered component comes from the BMW line, which means maintaining factory operating characteristics and compatibility with the electrical system and control unit of the specific model. In practice, this translates to:

• secure fitment of connectors and wiring harness without the need for modifications,
• consistency with engine control unit maps and algorithms,
• stable readings across the full range of loads and operating temperatures.

This allows the sensor to be used both as a replacement for a damaged part and as part of a preventive replacement during major exhaust system servicing.

Condition, Verification, and Selection by Part Numbers

The product is offered as a used original part, which in practice means a favorable cost-to-quality ratio compared to many low-budget aftermarket alternatives. Before resale, such components are typically verified for correct readings, sealing, and connector condition to minimize the risk of installation problems.

When selecting an exhaust pressure sensor for a specific BMW vehicle, it is advisable to base your choice on the manufacturer's part number or interchangeable numbers. This helps avoid discrepancies arising from differences in engine versions, model years, or production changes. For more information on selecting electronics and sensors, including working with OEM numbers and hardware/software compatibility, read our guide: Used Automotive Electronics – How to Safely Select Second-Hand ECU Modules and Sensors.

Why Choose BMW Lambda Sensors & O2 Sensors

The exhaust control system in modern BMWs is highly integrated with the control electronics, so using components from the Lambda Sensors & O2 Sensors category from the same brand minimizes the risk of communication errors and incorrect readings. If you are looking for other lambda and O2 sensors dedicated to this brand, check out our offer: BMW Lambda Sensors & O2 Sensors.

Summary

The BMW E90 F10 F20 F30 Exhaust Pressure Sensor is a functional component of the exhaust control system that supports proper engine operation, facilitates diagnostics, and helps maintain stable operating parameters. Choosing an original, used sensor from this brand is a sensible compromise between cost and maintaining factory operating characteristics, especially for modern BMW powertrains where the precision of exhaust parameter readings is crucial for engine durability and refinement.