Audi S8 D3 Crankcase Breather Hose Engine Pipe Line Oil Separator 079103464D

Audi S8 D3 Crankcase Breather Hose Engine Pipe Line Oil Separator is a specialized engine ventilation system component, designed by Audi to ensure stable engine operation under high-load conditions. This component from the Crankshafts category is responsible for the controlled discharge of oil vapors from the crankcase, which promotes smooth engine operation and reduces contamination of the intake system.

Specifications and technical data

• SKU: 079103464D
• Mark: Audi
• Condition: Used
• OEM Part Number: 079103464D
• Substitutable numbers: 079103464D, 079 103 464 D
• Rim width: 8
• Category: Crankshafts

Function of the oil separator in the Audi S8 D3 engine

The oil separator in the crankcase ventilation system plays a key role in managing the mixture of gases and oil vapors generated during engine operation. Its tasks include:

• separating oil particles from gases before they return to the intake system,
• stabilizing pressure in the crankcase during dynamic driving,
• reducing oil deposits in the manifold and intake hoses,
• supporting smooth operation of the crank-piston system at high RPMs.

For the powerful units used in the Audi S8 D3, a functional oil separator is essential for engine durability and maintaining consistent performance parameters.

Why it is worth using an original Audi component

The original oil separator from the Audi group is designed for the specific characteristics of the S8 D3 engine, which translates into tailored efficiency and predictable behavior across the entire load range. In practice, this means:

• maintaining factory vacuum values in the crankcase,
• compatibility with the standard ventilation system architecture,
• no need for installation modifications or additional adaptations,
• consistency with other components related to Crankshafts.

Using an original solution reduces the risk of issues with unstable idle, excessive oil consumption, or improper crankcase ventilation system operation during intensive use.

Performance and installation characteristics

The oil separator intended for the Audi S8 D3 is structurally prepared to operate in the demanding thermal and pressure environment of a high-power unit. Properly selected internal geometry and flow channels allow for effective oil vapor separation while maintaining adequate gas flow efficiency.

The component is designed for installation in the factory location, which facilitates service and reduces replacement time. Combined with a properly functioning lubrication system and a sealed vacuum installation, the separator supports:

• maintaining a stable mixture composition in the long term,
• reducing the tendency for carbon buildup in the intake,
• more predictable engine behavior during frequent load changes.

Part condition and practical benefits of choosing used OEM

The offered oil separator is a used component, which allows for an economical replacement while maintaining the manufacturer's original specifications. For many Audi S8 D3 users, this is a reasonable compromise between cost and preserving the factory design of the ventilation system.

If you are considering whether a used original part or a replacement is a better choice, the following article describing practical differences and selection criteria may be helpful: 5 reasons why a used OEM part is a better choice than a replacement.

Application area and related components

The oil separator in the Audi S8 D3 works with crank-piston system elements and the ventilation installation, indirectly affecting operating conditions in the area related to Crankshafts. Replacing this component is particularly recommended in case of:

• symptoms of excessive oiling of intake hoses,
• problems with unstable idle related to the crankcase ventilation system,
• preventive maintenance in engines operated dynamically.

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 components related to vapor discharge, parts working with the crankshaft system, or additional sub-assemblies supporting stable unit operation, check the available parts in the Audi Crankshafts category.

Summary

Audi S8 D3 Crankcase Breather Hose Engine Pipe Line Oil Separator is a technically matched ventilation system element that supports proper engine operation in the demanding S8 D3 model. Choosing an original, used component allows you to maintain the factory design concept, reduce the risk of crankcase ventilation system issues, and maintain predictable engine performance without the need for installation modifications.