BMW E81 E82 E87 LCI 123d N47S Exhaust Manifold EGR Gas Cooler 7806051

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E81 E82 E87 LCI 123d N47S Exhaust Manifold EGR Gas Cooler is an exhaust gas recirculation system component designed for BMW 1 Series diesel engines with the N47S unit. It enables efficient cooling of exhaust gases directed to the EGR valve, which promotes stable diesel engine operation and reduces emissions. This is a solution for users looking for a technically matched component for a specific model configuration.

Specifications and technical data

• SKU: 7806051-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7806051
• Substitutable numbers: 7806051, 11717806051
• Fuel type: Diesel
• Category: Manifolds & Headers

Purpose and role in the exhaust system

The described EGR gas cooler operates in the exhaust system area, within the group of components referred to as Exhaust Manifolds and related parts. Its task is to lower the temperature of the exhaust gases returned to the intake, which helps in reducing nitrogen oxides and stabilizing the combustion process in the diesel engine. As a result, the power unit maintains better operating refinement, and the exhaust aftertreatment system is less burdened.

In BMW 1 Series diesel engines from the N47S family, a properly functioning EGR cooler is important for:

• maintaining the appropriate temperature of exhaust gases directed to the EGR valve,
• reducing thermal loads in the exhaust manifold area,
• maintaining compliance with exhaust emission standards for diesel units.

Compatibility with the diesel engine and EGR system

The gas cooler has been designed to work with the diesel engine in the N47S version used in the BMW E81, E82, and E87 LCI 123d. This means it is matched in terms of geometry, connections, and exhaust flow within the specific power unit configuration. Using a dedicated component minimizes the risk of installation problems and leaks in the exhaust system.

For the user, this means that with the correct selection of parts according to the VIN and engine version, you can achieve:

• consistency with the factory exhaust manifold and EGR system,
• proper cooperation with other exhaust system components,
• maintenance of the engine's original operating parameters.

Characteristics of the used component

The offered EGR gas cooler is an aftermarket component, which allows for economical exhaust system repair while maintaining the original design. A used component of this type is often chosen in situations where the factory cooler has developed leaks, overheated, or suffered mechanical damage, and the priority is to maintain compliance with the OEM solution.

Before installation, a standard workshop procedure is recommended, including checking for leaks, cleanliness of the exhaust channels, and the condition of the connections. A properly prepared component allows for restoring correct circulation and cooling of exhaust gases in the EGR system, which affects engine stability and reduces smoke.

Benefits of using a dedicated gas cooler

Using the correct EGR gas cooler in a BMW 1 Series with an N47S engine brings a number of practical operational benefits:

• Better exhaust temperature control – reduction of thermal loads in the exhaust manifold and EGR valve area.
• More stable diesel engine operation – proper exhaust gas recirculation promotes even combustion of the mixture.
• Support for the emission reduction system – properly cooled exhaust gases help maintain emission parameters at the level intended for the given engine.
• Possibility of economical repair – a used component allows for reducing service costs while maintaining the factory system concept.

Related BMW Exhaust Manifolds and technical materials

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 manifolds, connection sections, or components cooperating with the EGR, check the available parts in the BMW Exhaust Manifolds category.

For users interested in a broader context of exhaust system operation and the selection of used elements, including manifolds and related components, a guide article may be useful – you can find more information in the material about performance exhaust systems and used manifolds. If you are interested in a broader look at the brand's components, including the use of aftermarket parts, it is also worth reading the text about the differences between BMW M Performance components and standard ones.