Vent Line Mercedes W204 Diesel OM651 Breather Hose To Air Intake A6510101082

Vent Line Mercedes W204 Diesel OM651 Breather Hose To Air Intake is a specialized component of the crankcase ventilation system, designed for OM651 diesel engines. This component from the Lines, Hoses and Pipes category ensures controlled flow of gases from the breather, which promotes stable engine operation and reduces contamination of the intake system. As an original Mercedes part, the hose is structurally matched to the engine bay geometry of the W204 model with a diesel engine.

Specifications and technical data

• SKU: A6510101082
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510101082
• Substitutable numbers: A6510101082, A 651 010 10 82
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Function and role of the breather hose in the OM651 engine

In the OM651 diesel engine, the breather system is responsible for discharging gases from the crankcase and redirecting them into the intake system. The described Vent Line Mercedes W204 Diesel OM651 Breather Hose To Air Intake operates in an environment of elevated temperatures and contact with oil mist, which is why its proper condition is important for:

• maintaining stable pressure in the crankcase,
• limiting oil leaks and blow-by,
• reducing deposits in the intake manifold,
• proper operation of the gas recirculation and exhaust filtration system.

A functional breather hose in a diesel engine translates into smooth engine operation, easier starting, and more predictable engine behavior under load.

Construction and fitment for Mercedes W204

The hose has been designed specifically for the engine bay architecture of the Mercedes W204 with the OM651 unit, which ensures proper routing of the hose relative to other components. The appropriately selected diameter and cross-sectional shape allow for free gas flow while minimizing the risk of kinks or crushing during engine operation.

The element belongs to the Lines, Hoses and Pipes group, which means it is part of a wider system of flexible and rigid connections within the power unit. Using an original Mercedes solution reduces the need for installation modifications and facilitates future service.

Benefits of using an original breather hose

Choosing a dedicated breather hose for the OM651 diesel engine in a Mercedes W204 allows you to maintain the factory operating parameters of the ventilation system. Key advantages include:

• Geometric compatibility – the hose is matched to the factory mounting points and routing in the engine bay.
• Stable gas flow – the proper design reduces turbulence and local flow restrictions.
• Support for diesel engine durability – proper crankcase ventilation helps maintain seal integrity and reduces excessive intake contamination.
• Easier diagnostics – using a hose that complies with factory specifications makes it easier for mechanics to assess the condition of the system and perform any further repairs.

Component condition and service application

The offered breather hose is a used part, which makes it an attractive service solution in situations where the existing hose has cracked, delaminated, or lost its flexibility. This type of part will work well both for standard maintenance replacement and for larger work within the power unit, such as removing accessories or cleaning the intake system.

Selecting a hose dedicated to a diesel engine allows you to maintain the correct operating parameters of the ventilation system, which is particularly important in modern diesel units where stable crankcase pressure affects refinement and component durability.

System expansion – other Mercedes lines, hoses and pipes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as vacuum lines, cooling system hoses, or supply pipes, check out the available parts in the Mercedes Lines, Hoses and Pipes category.

Technical support and additional knowledge

When performing extensive work within the drivetrain, especially in cars with one or more driven axles, it is worth considering the impact of modifications on the drivetrain characteristics. For those interested in a broader context of drivetrain operation and selecting gear ratios for driving style, the following article may be helpful: Dismantled drive axles and differentials – how to choose gear ratios for your driving style.