Mercedes W176 OM651 Turbo Oil Feed Pipe Turbocharger Lubrication Line

The Mercedes W176 OM651 Turbo Lubrication Oil Supply Line is an original turbocharger and parts component designed for the OM651 unit in the W176. This used oil line restores proper turbocharger lubrication in your petrol engine, reducing the risk of costly breakdowns.

Specifications and technical data

• SKU: A6511800820
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6511800820
• Substitutable numbers: A6511800820, A 651 180 08 20
• Fuel type: Petrol
• Category: Turbos & Parts

Purpose and function of the turbo oil supply line

The turbo oil supply line is responsible for supplying engine oil to the turbocharger in the OM651 engine, ensuring a stable oil film on the rotor bearings. A properly functioning line reduces overheating, reduces friction, and supports the durability of the entire turbocharging system in a gasoline-powered Mercedes W176.

Replacing a worn or leaking hose is particularly important in the following cases:

• drop in oil pressure in the turbocharger area,
• oil leaks around the turbo,
• excessive exhaust smoke caused by oil entering the hot or cold side of the turbocharger.

Benefits of using the original Mercedes cable

The original hose design ensures full compatibility with the factory routing geometry, bore diameter, and connection type used in the OM651 unit. This allows the component to fit the factory turbocharger system without the need for modifications, simplifying installation and reducing the risk of leaks.

Key advantages of using the original oil line in a Mercedes W176:

• Factory fit to the turbo system in the OM651 engine – maintaining the correct cable routing and mounting points.
• Stable turbocharger lubrication – appropriate pipe cross-section and design support proper oil flow.
• Compatibility with a petrol engine – the hose is matched to the thermal and pressure characteristics of this engine.

Used condition and assembly aspects

The turbo lubrication oil supply line is offered in used condition, allowing for cost-effective repair of the supercharger system while maintaining the original build quality. Before installation, standard workshop procedures are recommended: inspection of internal cleanliness, leaks, and condition of connections, as well as replacement of sealing elements according to the vehicle manufacturer's recommendations.

During installation, it is worth paying attention to:

• correct cable routing in the engine compartment,
• tightening torque of connections in accordance with service documentation,
• checking for possible leaks after the first start of the engine.

Application in the turbocharger system and selection of parts

The Mercedes W176 OM651 turbo lubrication oil supply hose is designed for a specific engine and body configuration, so it's worth verifying compatibility by the OEM number or vehicle VIN before purchasing. Choosing the right hose directly impacts the durability of the turbocharger and the engine's operational stability.

If you are interested in other oil lines and turbocharger components from the turbocharger and parts category for this brand, check the available turbochargers and parts for Mercedes to select components that are structurally compatible with your engine.

Original used parts and the durability of the drive unit

Using original, used turbocharger components—such as oil lines, manifolds, and turbo housings—is a popular way to maintain high engine efficiency while keeping service costs reasonable. Proper part selection based on the OEM part number and analysis of technical condition significantly extend the life of the engine without sacrificing precision.

To better understand how selecting genuine used components impacts the durability and performance of premium cars, check out the article "BMW – Sporty Performance and Precision. How Genuine Used Parts Extend the Life of a Bavarian Icon?" , which discusses practical procedures for selecting parts based on VIN and OEM numbers, as well as the approach to operating supercharged engines.