Audi Q2 GA 35 TDI DTTC Adblue Liquid Tank Reservoir 5Q0131877P

Audi Q2 GA 35 TDI DTTC Adblue Liquid Tank Reservoir is an original fuel supply system component designed for diesel vehicles, engineered specifically for the Audi brand. The tank's construction works in conjunction with the Selective Catalytic Reduction (SCR) system, ensuring stable delivery of AdBlue solution to the exhaust system and maintaining correct exhaust emission parameters. This solution allows for the preservation of the engine's factory performance and compliance with environmental standards.

Specifications and technical data

• SKU: 5Q0131877P
• Mark: Audi
• Condition: Used
• OEM Part Number: 5Q0131877P
• Substitutable numbers: 5Q0131877P, 5Q0 131 877 P
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and role in the fuel supply system

The presented AdBlue tank is a component from the Fuel tanks and filler pipes group, responsible for storing urea solution in diesel cars. In combination with the dosing pump and control system, it enables precise dosing of the fluid into the exhaust system, which translates into the reduction of nitrogen oxides and stable operation of the SCR system.

Being dedicated to the Audi Q2 GA 35 TDI DTTC model means maintaining the correct geometry of the mounts, appropriate routing of connection ports, and compatibility with the vehicle's factory electrical and hydraulic installation. As a result, installation is carried out in an orderly manner, without the need for modifications to the body structure or subframe.

Compatibility with diesel engines and the SCR system

The tank has been designed to work with Diesel engines that utilize a selective catalytic reduction system. The appropriate internal design limits fluid foaming, ensures stable medium intake, and guarantees the correct operation of level and temperature sensors (if provided in the specific vehicle configuration). This translates into predictable engine control unit operation and the absence of errors related to improper AdBlue dosing.

Proper matching of the tank to the specific engine version minimizes the risk of leaks, installation errors, and problems with system venting. This is particularly important in modern designs, where the exhaust gas cleaning system is closely integrated with the electronics controlling the engine's operation.

Component characteristics and advantages of use

As an original Audi component, the AdBlue tank maintains factory strength parameters and resistance to the urea solution and variable temperature conditions. The use of appropriate materials and seals limits the risk of chemical corrosion, micro-cracks, and deformation during long-term operation.

• Full compatibility with the body geometry and mounting points in the Audi Q2 GA 35 TDI DTTC.
• Compatibility with the factory wiring harness and electrical installation.
• Stable cooperation with the SCR system in diesel engines.
• Reduction of the risk of leaks and diagnostic errors related to AdBlue levels.

Choosing an original tank from this group allows for maintaining the consistency of the entire fuel supply and exhaust cleaning system, which is important both for the durability of the components and for subsequent service diagnostics.

Condition, installation, and service aspects

The offered item is in Used condition, meaning it has been removed from a vehicle and was previously in operation. This type of component is a good solution in situations where the priority is to optimize repair costs while maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a standard leak check, inspect the connection ports, and ensure the interior of the tank is clean.

During replacement, it is worth paying attention to:

• the condition of the AdBlue solution supply and return lines,
• proper routing of the electrical harness in the vicinity of the tank,
• correct venting of the system after filling with fluid.

This approach limits the risk of repeated service interventions and allows for restoring full system functionality in a single repair cycle.

Technical support and selection of related components

If you are planning a comprehensive repair or upgrade of the fuel supply and fluid storage area in your Audi and need other elements from the same group, such as supply lines, filler pipes, or additional mounting hardware, check the available parts in the Audi fuel tanks and filler pipes category.

For users who want to better understand the relationships between the tank, pump, injectors, and the rest of the fuel supply system, an article describing the construction and operation of the entire system will be helpful. Detailed discussion on diagnostics, component selection by OEM numbers, and regeneration principles can be found in the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.