Volkswagen VW Transporter T5 Power Steering Fluid Expansion Tank Bottle

The Volkswagen VW T5 Power Steering Reservoir is an original hydraulic system component designed for the power steering system in T5 series models. This used reservoir from the Expansion Tanks group allows for a technically correct replacement of a worn-out part while maintaining the system's factory operating characteristics. It's a practical solution for users seeking a robust component at a reasonable service price.

Specifications and technical data

• SKU: 7H0422371A
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 7H0422371A
• Substitutable numbers: 7H0422371A, 7H0 422 371 A
• Category: Expansion & Overflow Tanks

Purpose and Function in the Power Steering System

The presented reservoir is responsible for safely storing the working fluid and stably supplying it to the power steering pump. A correctly selected component ensures:

• maintaining the proper fluid level in the power steering system,
• limiting the aeration of the working fluid,
• stable operation of the pump and steering gear under typical operating conditions.

Thanks to its design, which aligns with factory specifications, the system maintains its proper operating parameters, translating to predictable power steering performance during maneuvering and when driving with a load.

Construction and Fit for VW T5

As a dedicated component for the T5 series, the reservoir is designed for specific mounting points and hydraulic line routing within the engine bay. This means:

• factory mounting points matched to the T5 body,
• adaptation for the standard routing of return and supply lines,
• compatibility with the original cap and connection nipples.

This precise fit facilitates installation and helps maintain the original system geometry, which is crucial for the durability of the lines and ease of service.

Characteristics of a Used Component

The offered reservoir is a salvaged part and is classified as a used service component. In practice, this means it is a part with retained functionality, intended for further use after proper installation. Choosing this option is beneficial when you prioritize:

• maintaining the original power steering system design,
• reducing repair costs while using an OEM part,
• consistency with other hydraulic system components.

Before installation, a standard service procedure is recommended, including system flushing and fluid replacement, to ensure the most stable operating conditions for the entire system.

Benefits of Using an Original Reservoir

Using an original reservoir in the VW T5 power steering system helps maintain factory-like operating parameters. Key benefits include:

• reliable fit for the hydraulic system – no need for modifications to mountings or lines,
• maintaining the working capacity as specified by the manufacturer,
• compatibility with standard accessory components in the engine bay.

This ensures a predictable replacement process and reduces the risk of problems arising from ill-fitting aftermarket parts.

Expanding Fluid System Service in VW

If you are planning a comprehensive repair or upgrade of the fluid systems in your Volkswagen and need other parts from the same group, such as additional reservoirs, bleeding elements, or related containers, check the available parts in the Volkswagen Expansion Tanks category.

If you want to deepen your knowledge on safely selecting used components for vehicles, including parts operating in demanding systems, the guide article: Second-Hand Braking Systems: How to Safely Choose Discs, Calipers, and ABS?, which presents a practical approach to assessing the condition of used parts, may be helpful.