BMW E70 E90 E91 E92 LCI F10 F11 N57 Exhaust Manifold EGR Gas Cooler 7805446

BMW E70 E90 E91 E92 LCI F10 F11 N57 EGR Exhaust Cooler 7805446 is an original exhaust gas recirculation component from the EGR Valves and Parts category, designed for modern BMW N57 diesel engines. It enables efficient exhaust gas discharge and cooling before they are directed back to the intake manifold, supporting stable engine operation and reducing harmful emissions. Thanks to its factory design, it ensures proper compatibility with the engine's electronics and accessories in BMW E70, E90, E91, E92 LCI, F10, and F11 models.

Specifications and technical data

• SKU: 7805446-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805446
• Substitutable numbers: 11717805446, 7805446
• Category: EGR Parts & Valves

Function of the EGR Exhaust Cooler in the N57 Engine

The EGR exhaust cooler in N57 engines is responsible for lowering the temperature of exhaust gases before they are reintroduced into the intake system. A properly functioning component:

• stabilizes the engine's operating temperature under varying loads,
• reduces the formation of nitrogen oxides, supporting compliance with emission standards,
• ensures uniform combustion conditions in the cylinders,
• minimizes the risk of overheating of components working with the EGR system.

For the user, this means more predictable engine performance, smoother operation, and less stress on other exhaust system components.

Compatibility with BMW Models

The presented BMW EGR exhaust cooler for N57 engines is designed as a factory part for selected BMW E and F series models. Its construction is intended for use with N57 units found in, among others:

• BMW 3 Series E90 and E91 generations,
• BMW 3 Series Coupe E92 LCI,
• BMW 5 Series F10 and F11 generations,
• BMW X5 E70 generation.

This ensures the user receives a component that perfectly matches the factory mounting points, hoses, and control systems, simplifying installation and minimizing the need for modifications.

Benefits of Using an Original EGR Exhaust Cooler

Using an original exhaust cooler from the EGR Valves and Parts category in an N57 engine offers tangible operational benefits. The most important include:

• maintaining factory parameters for the exhaust gas recirculation system,
• better compatibility with the engine control unit software,
• reducing the risk of diagnostic errors related to incorrect exhaust gas flow or temperature,
• consistency with other components of the EGR system and the cooling system.

For workshops and users, this translates to easier diagnostics, predictable vehicle behavior, and greater certainty about the part's suitability for a specific engine configuration.

Component Condition and Service Application

The offered BMW N57 EGR exhaust cooler is a used part, removed from a vehicle, and intended for service applications as a replacement for the factory-installed component. This is a practical solution for situations where the existing cooler has developed leaks, become clogged, or suffered mechanical damage, and it is necessary to restore the full functionality of the exhaust gas recirculation system while keeping repair costs reasonable.

Technical Support and Part Selection

When selecting an EGR exhaust cooler for a specific BMW N57 engine, it is crucial to verify compatibility with the engine designation, model year, and body version. If in doubt, it is advisable to consult a mechanic or the technical department to ensure the chosen part will work with the existing EGR system, hoses, and engine control unit.

If you are planning comprehensive service for your BMW's exhaust gas recirculation system and also need other components such as valves, modules, or additional parts for this system, check the available parts in the BMW EGR Valves and Parts category.

Service Knowledge and EGR System Operation

When working with exhaust gas recirculation systems, it is beneficial to use reliable sources of knowledge regarding the operation of modern diesel engines to minimize the risk of common engine accessory failures. A good starting point could be an article describing a practical approach to servicing timing and injection systems in popular Mercedes models – many principles regarding part quality, diagnostics, and preventative maintenance also apply to other brands. You can find more information in the material Reliability Under the Star – How to Care for Engine Accessories in Popular Mercedes-Benz C-Class and E-Class Models?.