BMW E60 E87 E90 M47N2 Oil Separator Filter Crankcase Breather 7799224

BMW E60 E87 E90 M47N2 Oil Separator Filter Crankcase Breather is an original crankcase ventilation system component designed for BMW M47N2 series diesel engines in E60, E87, and E90 models. It is responsible for separating oil mist from gases before they return to the intake, which contributes to stable engine operation and reduces intake manifold contamination. This is a practical solution for users who want to keep their engine in good operating condition.

Specifications and technical data

• SKU: 7799224-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7799224
• Substitutable numbers: 11127799224, 7799224, 11127793163, 7793163, 11127781465, 7781465, 11127789822, 7789822
• Category: Other Engine Parts

Function and role of the breather in the M47N2 engine

The breather, also known as an oil separator, is a key element of the crankcase ventilation system in BMW M47N2 engines. Its tasks include:

• separating oil particles from gases before they are reintroduced into the intake system,
• stabilizing pressure in the crankcase,
• reducing carbon deposit buildup in the intake manifold and on the valves,
• reducing oil consumption resulting from blow-by into the intake system.

Thanks to a properly functioning separator, the intake system remains cleaner, and the engine maintains smoother operation across the entire rev range. A functional breather has a direct impact on the engine's refinement and the long-term durability of the auxiliary equipment.

Compatibility with BMW E60, E87, E90 models

The presented separator is intended for use in popular BMW 3 Series, 5 Series, and 1 Series models with the M47N2 engine. This means it is structurally matched to factory mounting points and compatible with the original breather hose and air intake system.

Original BMW branding ensures compliance with the manufacturer's factory standards regarding gas flow, sealing, and material resistance to oil and high temperatures. As a result, this component can be used as a direct replacement for the factory-installed breather without the need for modifications.

Benefits of using an original separator

Choosing an original breather separator for the BMW E60, E87, and E90 with the M47N2 engine is a solution that allows you to maintain engine performance parameters at a stable level. The most important advantages include:

• maintaining the factory characteristics of the ventilation system, which reduces the risk of engine control unit errors and incorrect sensor readings,
• better control over the amount of oil entering the intake, which promotes the cleanliness of the manifold and hoses,
• compatibility with factory hoses and mounts in the engine bay,
• suitability for use as part of preventive breather system maintenance during engine service.

For BMW diesel units, regular inspection and potential replacement of the breather is an important part of caring for the intake system and turbocharger. A functional separator helps reduce contamination in the intake, which is important for both performance and long-term operation.

Product characteristics and condition

The offered component comes from the BMW parts line and is intended for reinstallation in vehicles equipped with the M47N2 engine. The product falls into a technical category that includes various components used in engine systems and accessories. Used condition means that the part has been previously operated, which allows for an economical refresh of the breather system in the vehicle while maintaining the original design specifications.

Before installation, it is recommended to perform a standard verification of connection tightness and check the condition of the hoses working with the separator so that the entire crankcase ventilation system operates consistently and without interference.

Expanding engine system maintenance and related content

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as breather hoses, intake system elements, or additional ventilation components, check the available parts in the Other BMW category.

To compare the characteristics of engines and accessories in other brands and to better understand the differences in the design of engines and associated systems, it is worth reading the comparative material regarding Audi sports versions – you will find it in the article Audi RS vs other models – what is hidden under the hood and chassis?.