Exhaust Cooler BMW E90 E91 LCI F10 F20 F30 Diesel N47N EGR 7822350

Exhaust Cooler BMW E90 E91 LCI F10 F20 F30 Diesel N47N EGR is a factory-original exhaust gas recirculation component designed for BMW diesel engines. It is responsible for the efficient cooling of exhaust gases redirected to the intake manifold, which stabilizes the engine's operating temperature and supports emission reduction. By utilizing the original BMW design, this component ensures predictable EGR system behavior and consistency with the factory engine control unit calibration.

Specifications and technical data

• SKU: 7822350-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7810751
• Substitutable numbers: 11717822350, 78223508, 7810751, 11717810751
• Fuel type: Diesel
• Category: Other Exhaust & Emission Parts

Purpose and role in the EGR system

The EGR cooler in BMW Diesel engines from the N47N family is responsible for lowering the temperature of exhaust gases before they are reintroduced into the combustion chamber. A lower mixture temperature helps reduce the formation of nitrogen oxides while maintaining stable engine operation across a wide range of loads. In practice, this translates into smoother engine performance, proper throttle response, and compliance with the emission standards specified for the given model.

In BMW 1, 3, and 5 series vehicles with diesel engines, the use of a dedicated EGR cooler is crucial for the proper functioning of the entire exhaust gas recirculation system. An incorrect or mismatched component can cause ECU errors, power loss, increased exhaust smoke, or overheating of components in the engine bay.

Benefits of using an original BMW EGR cooler

Using an original EGR cooler in the N47N engine provides a range of practical operational benefits:

• Full compatibility with the cooling and EGR system – matched connectors, mounting points, and exhaust flow geometry.
• Stable diesel engine operating parameters, especially under load and in urban driving conditions.
• Reduced risk of leaks and improper exhaust cooling, which could lead to diagnostic errors.
• Consistency with factory engine control software, with no need for map modifications or adaptations.

For users who want to keep their BMW in a configuration close to factory specifications, choosing such a component is a reasonable solution from both a technical and economic perspective.

Product characteristics and condition

The presented EGR cooler comes from the BMW range and is classified in the Other group, meaning it is a supplementary engine system component that does not fall into basic maintenance categories like brakes or suspension. The product is in Used condition, which in practice means it has been sourced from disassembly and can be a cost-effective alternative to a new part, while maintaining the original design and mounting fitment.

For many owners of older BMW generations, choosing a used, original component is a way to keep the car in good technical condition without overstretching the budget, while maintaining the correct material quality and compliance with factory design solutions.

Selection and integration with the engine system

To correctly select an EGR cooler for a specific BMW vehicle, it is worth paying attention to:

• the engine family (in this case, N47N diesel units),
• the body generation (e.g., E90, E91 LCI, F10, F20, F30),
• the type of engine equipment used and the cooling system configuration.

A properly selected component allows for installation without modifications, maintaining factory mounting points and system tightness. Proper integration with the cooling and exhaust gas recirculation system has a direct impact on the durability of the turbocharger, intake manifold, and the engine itself, which is why selecting a compatible component is important for long-term operation.

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 auxiliary coolers, cooling system hoses, or additional engine-related modules, check out the available parts in the Other BMW category.

Technical support and knowledge about powertrains

When working with advanced diesel units, such as the BMW N47N engine family, it is worth expanding your knowledge about the design differences between individual sport and standard versions. You may find the material comparing solutions used in more powerful car variants helpful, where topics such as engines, braking systems, and chassis are discussed – you can find it in the article Audi RS vs other models – what is hidden under the hood and chassis?.

If you are considering using parts from disassembly as an alternative to new components, it is worth familiarizing yourself with practical tips regarding this solution. A detailed discussion of the advantages and rules for the safe selection of used parts can be found in the guide No parts at the authorized service center? How to deal with repairing older models using parts from disassembly.