Mercedes-Benz E S W210 W220 320 CDI Crankcase Breather Vent Air Intake Pipe

Mercedes-Benz E S W210 W220 320 CDI Crankcase Breather Vent Air Intake Pipe is a component from the Lines, hoses and pipes category, designed for the intake system of CDI diesel engines. It is responsible for the controlled discharge of vapors from the crankcase into the intake system, which supports stable engine operation and reduces contamination of accessories. This solution helps maintain proper engine pressure and reduces the risk of unwanted oil leaks.

Specifications and technical data

• SKU: A6130160081
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6130160081
• Substitutable numbers: A6130160081, A 613 016 00 81, BG
• Category: Hoses, Lines & Pipes

Function and role in the 320 CDI intake system

The discussed crankcase breather pipe works in direct connection with the 320 CDI engine intake system, directing oil vapors from inside the engine to the intake manifold. This limits blow-by into the atmosphere and ensures the lubrication system maintains stable operating conditions. A properly functioning pipe:

• ensures controlled gas flow from the crankcase,
• reduces the risk of overpressure in the engine,
• limits oil deposits in unwanted areas of the intake system,
• supports the smooth operation of the turbocharged CDI engine.

For 320 CDI units in Mercedes-Benz E W210 and S W220 models, maintaining a functional breather pipe is essential for stable idle, correct throttle response, and reducing smoke under load.

Construction and fitment for Mercedes-Benz E / S W210 W220 320 CDI

The pipe belongs to a group of components shaped for a specific engine bay architecture, which is why its geometry is matched to the intake system and the layout of accessories in E and S class W210 / W220 models with the 320 CDI engine. Proper profiling and connector diameters allow for a tight connection with other system components, minimizing the risk of leaks and uncontrolled "false" air intake.

Using a dedicated pipe instead of universal replacements helps maintain factory flow characteristics, which is particularly important in diesel engines with precise fuel injection and boost control.

Benefits of using an original breather pipe

Choosing a crankcase breather pipe designed for specific Mercedes-Benz models provides a number of practical operational benefits:

• Stable crankcase pressure – reduction of oil leaks through seals and gaskets.
• Better engine refinement – fewer idle speed fluctuations and predictable load response.
• Reduction of intake contamination – properly routed oil vapors reduce the risk of excessive oil buildup in intake pipes and components.
• Correct turbocharger operation – pipe integrity is crucial for proper boost pressure control.

For owners of Mercedes-Benz E and S class with the 320 CDI engine, this is a practical way to keep the intake system in good condition without interfering with the factory design.

Condition, origin, and cost-effectiveness

The offered pipe belongs to the group of used components, which allows for a significant reduction in repair costs compared to new parts, while maintaining proper fitment for the specific engine version. In the case of intake system pipes and hoses, choosing a verified used part is often a reasonable compromise between price and functionality, especially in older W210 and W220 model generations.

If you want to better understand how to optimize service costs while maintaining appropriate quality, it is worth checking out our guide: Rising repair costs and the boom in used parts – how to save on car maintenance?. You will find practical tips there regarding the conscious choice of used OEM components.

Expanding the intake system in Mercedes-Benz – selecting related components

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 additional intake pipes, vacuum hoses, or breather tubes, check the available parts in the Mercedes lines, hoses and pipes category.

This allows you to replace several related components in one service stage, which reduces the risk of future leaks and helps restore a consistent, predictable state of the entire intake system in your Mercedes-Benz E or S class with the 320 CDI engine.