Audi A5 8T 2.0 TDI Diesel Adblue Additive Reservoir Fuel Tank 8K0131877S

Audi A5 8T 2.0 TDI Diesel Adblue Additive Reservoir Fuel Tank is an original component of the fuel and emission system, designed for use with Diesel engines. Engineered by the vehicle manufacturer, it ensures proper storage of the AdBlue additive and stable operation of the exhaust emission reduction system in your Audi.

Specifications and technical data

• SKU: 8K0131877S
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0131877S
• Substitutable numbers: 8K0131877S, 8K0 131 877 S
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The presented AdBlue additive reservoir is a component from the Fuel tanks and filler pipes group, working in conjunction with the diesel engine supply system. It is responsible for the safe storage of the AdBlue solution, which is dosed into the exhaust system to reduce nitrogen oxide emissions in Diesel engines.

The original design dedicated to Audi guarantees:

• perfect fitment to the factory mounting points on the chassis,
• proper integration with the vehicle's fuel and emission installation,
• maintenance of exhaust gas treatment system performance according to manufacturer specifications.

Benefits of using an original AdBlue reservoir

Using an original AdBlue additive reservoir in an Audi A5 8T with a 2.0 TDI engine helps maintain stable operation of the emission reduction system, which translates into proper functioning of the SCR system and reduces the risk of diagnostic errors related to incorrect additive dosing.

Key advantages include:

• factory geometry and capacity matched to the fuel system of the specific model,
• compatibility with AdBlue system accessories and hoses,
• compliance with emission standards for Diesel engines.

Integration with the Diesel fuel system

The component has been specifically designed to work with Diesel power units, where AdBlue is a key component of the emission reduction process. A correctly selected additive reservoir ensures:

• stable operating conditions for the AdBlue system pump and hoses,
• proper routing of lines in relation to the fuel tank,
• seamless integration with the factory emission system control.

Condition and service application

The offered AdBlue additive reservoir is an Audi brand part from the Fuel tanks and filler pipes category, intended primarily as a replacement in case of damage, leaks, or wear of the existing component. It is suitable for both standard repairs and more extensive service work related to the fuel and emission system.

Technical support and part selection

The element has a dedicated OEM part number and interchangeable numbers, which facilitates precise identification and selection for the specific configuration of the Audi A5 8T with a 2.0 TDI engine. This helps to minimize the risk of ordering errors and speeds up the service process.

If you want to better understand the operation of the fuel supply system and the role of the reservoir in the entire fuel circuit, check out the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where you will find practical tips on diagnostics and operation.

If you are planning a comprehensive repair or upgrade of the fuel supply and AdBlue area in your Audi and need other components from the same group, such as additional reservoirs, hoses, or filler elements, check out the available parts in the Audi fuel tanks and filler pipes category.