BMW F10 F11 F20 F21 F30 F31 LCI Petrol Injector Fuel EU5 Engine N20 N55 7597870

BMW F10 F11 F20 F21 F30 F31 LCI Petrol Injector Fuel EU5 Engine N20 N55 is an original BMW petrol injector nozzle, designed for engines meeting the EU5 emission standard. The part comes from a dismantled vehicle, allowing for an economical yet high-quality repair of the fuel system in modern BMW N20 and N55 units.

Specifications and technical data

• SKU: 7597870-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7597870
• Substitutable numbers: 13647597870, 7597870, 0261500109, 0 261 500 109
• Fuel type: Petrol
• Part type: Fuel Injector
• Category: Fuel Injectors

Application and Technical Characteristics

The petrol injector nozzle is designed for use in BMW engines from the N20 and N55 families, used in facelifted (LCI) F10, F11, F20, F21, F30, and F31 series models. The injector's design is adapted to the requirements of the EU5 standard, which helps maintain appropriate exhaust emission parameters and stable engine operation.

Precise fuel metering in a petrol engine is crucial for smooth idling, proper acceleration, and reducing knocking combustion. The type of injector used works with a high-pressure petrol fuel system, ensuring the correct fuel spray pattern and dose repeatability across the entire load range.

Benefits of Using an Original Injector Nozzle

Choosing an original BMW injector nozzle for N20/N55 engines allows you to maintain the performance parameters intended by the manufacturer. The key benefits include:

• Stable Petrol Metering – improved engine running smoothness and reduced jerking during acceleration.
• Better Combustion Control – proper fuel atomization helps maintain correct combustion temperatures and reduces the risk of knocking.
• Optimized Fuel Consumption – a functional injector helps maintain factory fuel consumption figures under typical operating conditions.
• Compatibility with Engine Control System – original flow characteristics facilitate adaptation in the ECU and reduce the need for additional diagnostics.

Part Condition and Installation Recommendations

The offered BMW petrol injector nozzle is a used part, sourced from a dismantled vehicle. Before installation, it is recommended to perform standard service procedures, such as checking the seat for leaks, assessing the condition of seals, and verifying operating parameters on a diagnostic bench, if the workshop has the appropriate equipment.

To fully utilize the potential of this injector, it is advisable to ensure:

• proper cleaning of the cylinder head ports before installation,
• use of new seals in accordance with manufacturer recommendations,
• checking engine operating parameters after replacement (injection corrections, ECU adaptations).

Diagnostics and Technical Knowledge

Problems with injectors – both petrol and diesel – often manifest similarly: uneven idling, power loss, increased fuel consumption, or error codes stored in the engine control unit. If you want to better understand how to recognize symptoms of wear in fuel system components, it is worth reading the guide: diesel injector faults – symptoms, consequences, and diagnostics. Although it concerns diesel engines, many diagnostic principles remain similar for petrol systems.

Other BMW Injector Nozzles

If you are also looking for other BMW injector nozzles for different models or engine configurations, check out our dedicated category: BMW injector nozzles. This will allow you to easily compare available variants and select the appropriate part for your specific engine version and vehicle year.