Turbo Oil Pipe Mercedes W166 R172 W212 W221 M278 Feed Hose Right O/S A2780904277

The Mercedes W166 R172 W212 W221 M278 Right Turbo Oil Hose is an original turbocharger oil supply system component, designed for right-side installation in select Mercedes models with the M278 engine. This used part from the turbochargers and parts category allows for technical, factory-correct repair of the turbocharger system without interfering with its design.

Specifications and technical data

• SKU: A2780904277
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2780904277
• Substitutable numbers: A2780904277, A 278 090 42 77
• Location on the vehicle: Right
• Category: Turbos & Parts

Purpose and function of the turbo oil line

The turbo oil line on the right side is responsible for a stable supply of lubricating oil to the turbocharger in the M278 unit. Proper oil flow is crucial for bearing durability, reduced friction, and maintaining proper rotor operating temperature. Replacing a worn or leaking line with an original component restores proper lubrication conditions and reduces the risk of turbocharger damage.

The component has been designed specifically to work with the supercharging system in Mercedes SUV, roadster and limousine models from the W166, R172, W212 and W221 families, ensuring proper cable routing, connection matching and compatibility with the factory mounting points.

Advantages of using the original turbo oil hose

Using the original turbo oil line in the charging system brings a number of technical benefits:

• Factory fit – the cable and termination geometry is consistent with the manufacturer’s design, which simplifies installation and minimizes the risk of stress on the connectors.
• Appropriate flow diameter – ensures the correct pressure and amount of oil supplied to the turbocharger, which promotes stable operation of the drive unit.
• Compatibility with the M278 lubrication system – the hose works with the factory oil channels and mounting elements in the engine and turbocharger.
• Reducing the risk of leaks – a properly selected hose with appropriate ends and seals reduces the likelihood of leaks occurring at critical points in the system.

Used condition and technical aspects of assembly

The turbo oil hose offered is in used condition, allowing for cost-effective repair while maintaining the original Mercedes-Benz quality of workmanship . Before installation, a standard visual inspection is recommended for any signs of mechanical damage, corrosion at the connections, and oil passage obstruction, as well as the use of new sealing elements in accordance with the service procedure.

Positioning the hose on the right side of the vehicle requires careful attention to proper hose routing relative to engine accessories, heat shields, and body components. Proper routing minimizes the risk of contact with hot exhaust system components and reduces the possibility of abrasion during engine operation.

Selection by OEM numbers and verification support

When selecting a turbo oil line for a specific vehicle, it's crucial to compare data from service documentation and part numbers in the product's technical specifications. Proper identification helps avoid installation issues and ensures full compatibility with the turbocharger system and the M278 engine.

If you want to deepen your knowledge about the safe selection of components based on manufacturer markings, it is worth using the guide: Buying parts online without risk - 5 ways to verify compatibility using OEM numbers , which describes practical methods for checking the compatibility of components, including parts for Mercedes.

Other turbo oil lines for Mercedes - turbochargers and parts category

If you're looking for other turbo oil hoses for Mercedes in the Turbochargers and Parts category, check out the available products using the link: Turbo Oil Hoses in the Turbochargers and Parts category for Mercedes . This will allow you to easily compare different hose options, match the component to your specific engine configuration, and optimize the turbocharger repair process.