Audi A4 B8 Hood Roof Hydraulic Ram Strut Cylinder Left N/S 8H0871605B

Audi A4 B8 Hood Roof Hydraulic Ram Strut Cylinder Left N/S is a specialized component of the roof opening and closing system, responsible for the stable operation of the roof or sunroof mechanism. As an original Audi component from the Panoramic roofs, sunroofs and parts category, it ensures proper fitment to the factory installation and predictable behavior during operation. Using this pre-owned part allows for a technically correct repair at a reasonable price while maintaining compatibility with the vehicle's design.

Specifications and technical data

• SKU: 8H0871605B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H0871605B
• Substitutable numbers: 8H0871605B, 8H0 871 605 B
• Location on the vehicle: Left
• Category: Sunroofs & Parts

Purpose and function of the component

The presented hydraulic ram is designed for installation on the left side of the body, in the roof area of the Audi A4 B8 generation. It is responsible for the controlled movement of the roof panel, maintaining proper pressure, and smooth guidance throughout the entire range of the mechanism's operation. A correctly selected and functional ram reduces the risk of jamming, uneven closing, and overloading of other roof system components.

Benefits of using an original hydraulic ram

Using an original hydraulic ram in an Audi A4 B8 allows you to maintain the factory operating parameters of the roof. Key advantages include:

• compatibility with the geometry of the guides and mounts on the left side of the vehicle,
• predictable cooperation with the existing hydraulic system and controls,
• reduction of the risk of leaks and uneven loading of the roof structure,
• maintaining the comfort of using the roof or sunroof at a level close to factory standards.

Thanks to this, repairing the roof system does not require modifications or adaptations, and the installation can be carried out in an orderly manner, in accordance with service documentation.

Professional installation and operation

To fully utilize the potential of this component, installation by a workshop experienced in servicing Audi roofs and sunroofs is recommended. During installation, it is worth paying attention to:

• proper bleeding of the hydraulic system,
• checking the condition of hoses, seals, and mounts in the roof area,
• calibration of the roof position according to the manufacturer's procedure, if required.

Such an approach minimizes the risk of recurring faults and allows for long-term, stable operation of the entire roof mechanism.

Expansion and selection of other Audi roof elements

If you are planning a comprehensive repair or upgrade of the roof area in your Audi and need other elements from the same group, such as guides, seals, or additional control modules, check the available parts in the Audi panoramic roofs, sunroofs and parts category.

Technical support and expert knowledge

When selecting used mechanical and hydraulic system components, it is worth relying on reliable sources and proven verification procedures. To deepen your knowledge about the principles of selecting and operating aftermarket components, you can use the advice contained in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses practical aspects of working with used components in a way that can also be applied to other vehicle systems.

Additionally, if you are interested in a broader context of engine accessory maintenance and the selection of spare parts in premium class vehicles, it is worth reading the expert material Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C and E-Class models?, which shows how proper maintenance and the right selection of components affect the durability of the entire powertrain.