BMW E81 E87 LCI E90 E91 F20 F30 N47 Diesel Exhaust Gas Pressure Sensor 7811935

BMW E81 E87 E90 N47 Exhaust Gas Pressure Hose is a component of the turbocharging and exhaust gas recirculation system in BMW diesel engines, responsible for precisely transmitting exhaust gas pressure to the relevant sensors. As part of the Air and Fuel Intake Sensors category, it supports the correct operation of the engine control unit, stable boost characteristics, and the correct fuel dose. A used genuine part is a sensible choice for servicing N47 units when you want to maintain factory operating characteristics without excessive costs.

Specifications and technical data

• SKU: 7811935
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7811935
• Substitutable numbers: 7811935, 13627811935, 7810181
• Fuel type: Diesel
• Category: Air Intake & Fuel Sensors

Application in BMW N47 Engines

The exhaust gas pressure hose works with BMW N47 series diesel engines installed in E81, E87, and E90 models. It is responsible for transmitting the exhaust gas pressure signal to the measuring elements, allowing the control unit to:

• control boost pressure in various load ranges,
• correctly manage the fuel dose in the diesel engine,
• maintain stable operation of the intake and exhaust system.

Thanks to this, the injection and boost system can operate in optimized conditions, which contributes to maintaining proper dynamics and reducing smoke.

Technical and Functional Characteristics

As a component from the Air and Fuel Intake Sensors group, the exhaust gas pressure hose acts as a link between the mechanical part of the exhaust system and the sensors controlling engine operating parameters. A correctly selected and sealed hose:

• ensures a stable pressure signal without delays or interference,
• reduces the risk of engine control unit errors related to exhaust gas pressure,
• supports smooth engine operation across the entire RPM range.

For diesel engines, resistance to temperature and pressure pulsations is particularly important, which translates into longer, predictable operation.

Benefits of Using a Genuine Exhaust Gas Pressure Hose

Choosing a genuine exhaust gas pressure hose for a BMW with an N47 engine allows you to maintain the system's factory operating parameters. The main advantages of such a solution include:

• Full compatibility with the N47 unit – matching the geometry, diameter, and length of the hose to the factory system.
• Reduced problems with adaptation and diagnostics – the control unit receives a signal with characteristics consistent with the manufacturer's specifications.
• Stable operation of the injection and boost system in the diesel engine – less risk of power drops and limp mode.

This solution is particularly beneficial for professional servicing, where parameter repeatability and ease of subsequent computer diagnostics are important.

Component Condition and Installation Aspects

The offered exhaust gas pressure hose is a used part, which helps reduce repair costs while maintaining original specifications. This type of part, after correct installation, can effectively restore correct exhaust gas pressure readings in the system, eliminating errors related to leaks or damage to the old hose.

When replacing, it is recommended to:

• check the condition of the connectors and connection sockets,
• check the system for leaks after installation,
• verify engine operating parameters using computer diagnostics.

Selection by Numbers and Fuel System Diagnostics

The exhaust gas pressure hose works with the diesel engine fuel supply system, so its condition affects how the control unit interprets load and fuel dose. When selecting parts, it is worth using manufacturer markings and interchangeable numbers to ensure full compatibility with the specific vehicle configuration.

If you want to better understand the relationships between exhaust gas pressure, injector operation, and the fuel pump, the following guide will be helpful: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair. You will find practical tips on diagnostics and selecting parts by OEM numbers there.

Other BMW Air and Fuel Intake Sensors

If you are servicing the intake or fuel system in your car and need other parts from the Air and Fuel Intake Sensors for BMW category, check out the BMW Air and Fuel Intake Sensors available in our store. This will allow you to easily assemble a set of parts matched to a specific model and engine, maintaining the consistency of the entire system's parameters.