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BMW 3 5 X5 Series E39 E46 E53 Pressure Sensor Fuel Diesel M57 0261230046 7785354
SKU: 7785354
Product from a certified dismantling facility
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Used
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BMW 3 5 X5 Series E39 E46 E53 Pressure Sensor Fuel Diesel M57 is a precision component of the diesel fuel system, responsible for the accurate measurement of fuel pressure in the common rail. Thanks to its factory-spec operating characteristics and compatibility with M57 engines, it ensures stable engine performance, correct injection dosage, and predictable load response. This solution is particularly beneficial for diagnostics and restoring the proper operating parameters of the fuel injection system in modern BMW diesel engines.
Specifications and technical data
- SKU: 7785354
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 7785354
- Substitutable numbers: 13327785354, 7785354, 0261230046
- Fuel type: Diesel
- Category: Air Intake & Fuel Sensors
Purpose and role in the fuel system
The fuel pressure sensor is designed for Diesel engines from the M57 family used in BMW 3 Series E46, 5 Series E39, and X5 E53 models. Its task is to continuously measure the current pressure in the fuel rail and transmit this data to the engine control unit (ECU), which then regulates the injection timing and dosage. A properly functioning sensor reduces the risk of power loss, starting issues on both hot and cold engines, and rough idling.
This element belongs to the Air and fuel intake sensors group, which are components that directly affect mixture parameters and engine safety. In common rail engines, its efficiency is crucial for both performance and the longevity of the injectors and the high-pressure pump.
Benefits of using an original BMW sensor
Using an original fuel pressure sensor dedicated to BMWs with an M57 engine allows you to maintain the factory operating characteristics of the injection system. Key advantages include:
- stable measurement signal transmitted to the engine control unit,
- better repeatability of fuel rail pressure across the full load range,
- reduced risk of the engine entering "limp mode" due to incorrect readings,
- easier diagnostics – sensor values are consistent with factory maps.
By maintaining the parameters specified by the manufacturer, the injection system operates within a safe range, which promotes a longer service life for other components, such as the injectors or the high-pressure pump.
Installation and operational characteristics
The sensor is structurally designed for installation in the common rail fuel line of M57 engines. Installation involves mechanical seating in the appropriate socket and connecting the engine wiring harness. In most cases, replacement does not require any software intervention, which reduces service time and simplifies the repair procedure.
As a used item, this sensor is sourced from vehicle dismantling and is intended for users who want to economically restore the efficiency of the fuel system while maintaining the original manufacturer's specifications. This is a particularly attractive solution for maintenance repairs on mature BMW diesel models.
Selection support and technical knowledge
Selecting the correct fuel pressure sensor for a specific version of the M57 engine should always be based on catalog numbers and vehicle documentation to ensure full hardware and software compatibility. If you want to better understand how to safely use used electronic and measurement components in modern diesels, check out the Global Parts guide: Used automotive electronics on board – why choose second-hand ECU modules and sensors?
Additionally, to make informed choices when selecting original components from the secondary market and to understand how they translate into the safety and durability of the injection system, it is worth reading the article: OEM quality guarantee and safety – why used original car parts are the best choice for your vehicle?
Related BMW fuel system components
If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other items from the same group, such as additional fuel sensors, air temperature sensors, or boost pressure sensors, check out the available parts in the BMW Air and fuel intake sensors category.
Delivery details
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Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
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