Audi A6 C7 4G TDI Diesel Engine AdBlue Fluid Pump Sender Unit 4G0131969

Audi A6 C7 4G TDI Diesel Engine AdBlue Fluid Pump Sender Unit is a specialized component of the fuel supply and exhaust additive dosing system for diesel engines, designed for Audi models equipped with TDI units. Precise AdBlue fluid dosing supports the proper operation of the exhaust emission reduction system, which translates into stable diesel engine performance and compliance with environmental standards.

Specifications and technical data

• SKU: 4G0131969
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0131969
• Substitutable numbers: 4G0131969, 4G0 131 969
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the supply system

The AdBlue fluid pump sender unit in the Audi A6 C7 4G TDI is responsible for the controlled delivery of the solution to the exhaust system, working in conjunction with the diesel engine's control electronics. A properly functioning component in this group ensures:

• stable pressure and flow of AdBlue fluid in the SCR system,
• correct interaction with sensors and the engine control module,
• reduction of the risk of the engine entering limp mode due to dosing errors.

By maintaining the correct operating parameters of the dosing system, the TDI engine maintains optimal performance and predictable fuel consumption.

Construction and integration with the fuel and additive system

The element belongs to the Fuel pumps and level sensors group, which means it is closely integrated with the supply system and the monitoring of the working medium quantity in the vehicle. The design of the AdBlue pump sender unit is engineered to:

• ensure system tightness across varying operating temperatures,
• maintain proper additive flow throughout the entire engine load range,
• work with factory-installed level and pressure sensors in the system.

This solution allows for the consistent operation of all components responsible for preparing the exhaust and additive mixture, which is significant for both the durability of the engine and service diagnostics.

Performance characteristics of the used component

The offered AdBlue fluid pump sender unit is a used part, which allows for cost-effective system repair while maintaining the original installation specifications. In practice, this means:

• retaining factory fitment for the Audi A6 C7 4G TDI installation,
• the ability to install it in place of a damaged component without interfering with the system's design,
• an attractive cost-to-functionality ratio compared to new aftermarket replacements.

Choosing an original used component is particularly beneficial where compatibility with the existing installation and maintaining the parameters specified by the vehicle manufacturer are priorities.

Part matching and technical support

When selecting an AdBlue fluid pump sender unit for a specific Audi A6 C7 4G TDI configuration, it is crucial to verify compatibility using the OEM number and interchangeable numbers, as well as to consider the fuel type, which in this case is Diesel. This approach minimizes the risk of installation issues and eliminates communication errors with the vehicle's electronics.

If you would like to learn more about selecting and installing components that work with engine electronics, it is worth reading the guide on how to safely choose modules and sensors from the secondary market – you can find it in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

Additionally, when deciding between an original part, a replacement, or a used component, the Global Parts comparison material may be helpful – more information can be found in the post Original, replacement, or used – which car parts are the most cost-effective?.

Expanding the AdBlue dosing system in Audi

If you are planning a comprehensive repair or upgrade of the fuel supply and additive dosing area in your Audi and need other elements from the same group, such as pumps, dosing modules, or level sensors, check out the available parts in the Audi fuel pumps and level sensors category.

This approach allows you to refresh key components responsible for the operation of the fuel and AdBlue system in a single service stage, which reduces the risk of future vehicle downtime and facilitates subsequent diagnostics.