BMW E60 E61 X5 E70 E90 EGR Valve M47 M57 Diesel 7804351

BMW E60 E61 X5 E70 E90 EGR Valve M47 M57 Diesel is an original component from the EGR Valves and Parts group, designed for BMW diesel engines. Engineered as part of the exhaust gas recirculation system, it supports stable engine operation, emission reduction, and proper engine management performance. This is a solution for users seeking a proven OEM component for service replacement in M47 and M57 engines.

Specifications and technical data

• SKU: 7804351
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7804351
• Substitutable numbers: 7804351
• Fuel type: Diesel
• Category: EGR Parts & Valves

Function and role of the EGR valve in a diesel engine

The EGR valve in diesel engines is responsible for the controlled supply of exhaust gases to the intake manifold, which helps lower combustion temperatures and reduce nitrogen oxide emissions. In M47 and M57 units, a properly functioning valve contributes to:

• stable idle and under-load operation,
• correct throttle response across the entire RPM range,
• maintaining compliance with factory engine control unit maps,
• reducing the risk of entering limp mode due to exhaust gas recirculation system errors.

By maintaining the factory exhaust gas flow characteristics, the original BMW EGR valve allows for the restoration of correct intake system performance parameters after the failure or wear of the previous component.

Compatibility with M47 and M57 units

The presented valve has been designed to work with Diesel engines from the M47 and M57 families used in, among others, the BMW E60, E61, X5 E70, and E90 series. This ensures:

• geometry matched to the factory manifold and vacuum or control lines,
• compatibility with the factory engine control unit and its EGR operation strategies,
• correct diameter and cross-section of exhaust gas flow channels.

Selecting the component according to the manufacturer's markings allows for installation without mechanical modifications, which is particularly important when servicing exhaust gas recirculation systems in modern diesel units.

Characteristics of the used OEM component

The offered valve belongs to the group of used parts, which allows for economical repair while maintaining the OEM design. In practice, this means:

• factory housing and operating mechanism consistent with the original BMW design,
• retention of mounting points and connections in the same layout as the factory-installed part,
• possibility of verifying compatibility via OEM numbers and interchangeable numbers in the specification.

Before installation, a standard service procedure is recommended: leak testing, checking the freedom of movement of the valve head or flap, and verifying the operation of the control (vacuum or electric – according to the application in a given engine).

Benefits of using an original BMW EGR valve

Replacing a faulty EGR valve with an original component from the same design group helps reduce typical operational problems in BMW diesel engines. The most important advantages include:

• restoration of proper exhaust gas recirculation system operation without the need for ECU software modifications,
• preservation of factory combustion parameters and torque characteristics,
• reduction of the risk of exhaust flow-related errors in OBD diagnostics,
• better cooperation with other intake and exhaust system components.

For users who want to keep their car in a configuration close to the factory state, using an original valve from the EGR Valves and Parts group is a technically consistent and predictable solution in terms of service results.

Selection, installation, and technical support

Before purchasing, it is worth comparing the markings in the specification with the data from the removed component and the vehicle documentation. It may also be helpful to use expert advice on the compatibility of OEM markings and interchangeable numbers – this is described in detail in the article No more bad purchases! How to professionally select used car parts, where you will find practical tips on selecting used components.

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 valves, hoses, or exhaust gas recirculation control elements, check out the available parts in the BMW EGR Valves and Parts category.