Engine Exhaust Manifold BMW F01 F07 F10 535d 740d N57S Exhaust Unit 7805454

Engine Exhaust Manifold BMW F01 F07 F10 535d 740d N57S Exhaust Unit is an original exhaust system component designed for BMW N57S family diesel engines. This component ensures proper exhaust gas discharge from the cylinder head, stable engine operation, and helps maintain correct performance parameters. Thanks to its factory design, the manifold is precisely matched to the cylinder head geometry and the characteristics of the diesel engine.

Specifications and technical data

• SKU: 7805454
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805454
• Substitutable numbers: 11627805454, 7805454, BG
• Fuel type: Diesel
• Category: Manifolds & Headers

Purpose and function in the exhaust system

The exhaust manifold in the N57S engine is responsible for collecting exhaust gases from individual cylinders and directing them to the subsequent components of the exhaust system. In the case of BMW diesel units, it is crucial to maintain proper sealing and correct flow in order to:

• maintain stable boost pressure and proper turbocharger operation,
• reduce exhaust energy losses,
• minimize the risk of overheating adjacent engine components.

Thanks to the design developed by BMW, the manifold works with factory engine equipment, which facilitates installation and allows for maintaining the stock performance parameters of the power unit.

Technical characteristics for the diesel engine

Diesel engines generate higher exhaust pressures and temperatures than gasoline units, which is why the exhaust manifold must be sufficiently durable. This model uses solutions typical for diesel units, ensuring:

• resistance to long-term thermal loads,
• dimensional stability during frequent temperature changes,
• compatibility with the factory charging system and subsequent exhaust components.

Such properties help maintain uniform exhaust flow, which translates into predictable engine response and proper cooperation with the control electronics.

Condition, origin, and benefits of using a used part

The offered exhaust manifold is a part from the Exhaust manifolds group sourced from dismantling, which allows for combining an attractive cost with the preservation of factory geometry and mounting points. A used OEM component is particularly beneficial when you care about:

• maintaining the original exhaust system specification,
• avoiding problems with fitting aftermarket replacements,
• reducing repair costs while maintaining high manufacturing quality.

In the case of exhaust manifolds for diesel engines, choosing a part from original production often translates into better durability after installation than in the case of many cheaper replacements.

Practical installation and operational tips

When replacing the exhaust manifold in an N57S engine, it is worth paying attention to a few technical aspects to fully utilize the potential of this part:

• checking the contact surface with the cylinder head for any deformations,
• using new gaskets and appropriate bolt tightening torques,
• checking the condition of turbocharger mounts and surrounding lines.

Such an approach reduces the risk of leaks, unwanted noises, and performance drops after installation. A well-chosen and correctly installed manifold helps maintain stable diesel engine operation across the full load range.

Exhaust system expansion and additional 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 additional manifolds, connection sections, or mounting elements, check the available parts in the BMW Exhaust manifolds category.

For drivers interested in a broader look at tuning and exhaust system modifications, including the selection of used manifolds for various brands, the article on our blog will be helpful: Performance exhaust system: used manifolds and sports catalytic converters on the road. You will find practical tips there regarding the selection of components and the operation of modified exhaust systems.