Audi A4 B8 Q5 8R AdBlue Pump Unit Diesel Engine 8K0131899

Audi A4 B8 Q5 8R AdBlue Pump Unit Diesel Engine is an original fuel supply system component designed for diesel vehicles. It ensures precise delivery of the AdBlue solution to the exhaust system, supporting the proper operation of the emission reduction system. Thanks to its factory origin from the Audi range, you maintain compliance with the manufacturer's requirements and stable operating parameters of the power unit.

Specifications and technical data

• SKU: 8K0131899G
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0131899
• Substitutable numbers: 8K0131899, 8K0 131 899, 8K0131899G, 8K0 131 899 G
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the diesel supply system

The presented pump belongs to the Fuel pumps and level sensors group, however, in this application, it is responsible for handling the AdBlue system in diesel-powered cars. This component generates the appropriate pressure and doses the agent into the installation, which enables the effective operation of the exhaust gas cleaning system in modern diesel units.

Using an original pump in Audi A4 B8 and Audi Q5 8R vehicles allows you to maintain stable operation of the SCR system, reduce the risk of engine control unit errors, and avoid problems with insufficient dosing of the agent under variable engine loads.

Benefits of using an original AdBlue pump

Choosing a factory solution from the Audi range translates into a number of practical advantages in daily operation:

• maintaining operating parameters consistent with the vehicle manufacturer's specifications,
• proper cooperation with the electronics controlling the injection system and the SCR system,
• appropriately selected pressure and performance characteristics for the diesel engine,
• reduced risk of error messages related to AdBlue.

As a result, the pump is a technically safe choice when repairing the exhaust gas cleaning system, especially in vehicles used intensively, where the stability of parameters is crucial for the durability of the power unit.

Component condition and installation aspects

The offered pump comes from a used vehicle, which allows you to combine a cost-effective repair with maintaining the original manufacturer's specifications. This type of component is designed as a replacement part, therefore its installation in place of a worn-out pump in most cases proceeds in a manner similar to a plug-and-play solution, while maintaining factory mounting points and connections.

Before installation, a standard workshop procedure is recommended: checking the electrical installation, supply and return lines, and system tightness so that the newly installed pump can operate under optimal conditions. Proper venting and adaptation in the controller (if required by the specific model) help reduce the risk of further service interventions.

Selection by numbers and vehicle compatibility

The pump is an original Audi component assigned to a specific group of models and engine versions. When selecting parts, it is worth using the OEM number or interchangeable numbers visible in the technical specification, as well as vehicle data (VIN), to confirm full compatibility with the specific car configuration.

If you want to deepen your knowledge about the safe use of used components in modern cars, how to verify compatibility, and the importance of OEM markings, the Global Parts guide will be useful: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Expanding the supply system in Audi

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

By using original components from this group, you will maintain the consistency of the entire supply system, which translates into stable diesel engine operation, correct AdBlue handling, and a lower risk of unplanned service downtime.