Adblue Filler Filter BMW G30 G31 Diesel SCR Active Charcoal Filter Housing

BMW G30 G31 Diesel AdBlue Filler Neck SCR Housing with Activated Carbon Filter is a specialized fuel system component designed for BMW 5 Series models with diesel engines. It is responsible for proper filtration of vapors in the AdBlue filler neck area and stable operation of the SCR system in vehicles powered by diesel fuel. This solution helps maintain the efficiency of the exhaust emission reduction system and reduces the risk of malfunctions related to contamination.

Specifications and technical data

• SKU: 7377946
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7377946
• Substitutable numbers: 7377946, 16197377946
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and Function in the AdBlue/SCR System

The described activated carbon filter housing operates in the AdBlue filler neck area, forming part of the group of components referred to as Fuel Filler Necks and Pipes. Its task is to control and filter vapors and protect the system from external contaminants, which is crucial for the durability of SCR system components.

In practice, a properly functioning filter in this location helps to:

• stabilize the operating conditions of the nitrogen oxide reduction system (SCR),
• reduce the risk of particles and moisture entering the filler neck area,
• maintain correct operating parameters of the AdBlue dosing system in diesel engines.

Compatibility with BMW G30/G31 Diesel

The component has been designed for the BMW 5 Series G30/G31 platform with Diesel engines, ensuring correct geometry, mounting points, and fit with the factory tank and pipe system. This allows for a streamlined installation without the need for structural modifications to the body or fuel system.

As part of the BMW group, it maintains compatibility with the factory design for routing pipes and component placement, which is important for maintaining sealing and proper vapor circulation in the filler neck area.

Technical and Operational Characteristics

The activated carbon filter housing utilizes activated carbon as a sorbent medium, which is responsible for binding specific vapor components. This design is typical for modern fuel systems and operational additives in diesel-powered vehicles, where meeting emission standards and maintaining correct SCR system operating parameters are important.

This solution:

• supports the maintenance of stable pressure conditions in the filler neck area,
• reduces the undesirable impact of vapors on plastic components and seals,
• contributes to a longer lifespan of AdBlue system components with proper operation.

Condition, Selection, and Service Application

The offered component is from the group of used parts, allowing for economical repair of the system while maintaining original construction and fit for the specific BMW model. This type of component is particularly useful for servicing vehicles experiencing issues with venting, leaks in the filler neck area, or incorrect SCR system operation due to mechanical damage to the filter housing.

When selecting, it is recommended to verify compatibility by OEM number or interchangeable part numbers, and by vehicle data, to ensure full compatibility with the specific engine version and model year.

Technical Support and Additional Information

To better understand the role of such components in the entire fuel and operational additive system, it is worth familiarizing yourself with material discussing the construction and diagnostics of the fuel system, including part selection by OEM numbers and operating principles – this is described in detail in the article “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair”.

If you are planning a comprehensive repair or upgrade of the fuel system and filler neck area in your BMW and need other parts from the same group, such as filler pipes, venting elements, or components near the tank, check the available parts in the BMW Fuel Filler Necks and Pipes category.