Application

Mercedes-Benz

• Mercedes-Benz E-Class W211, 3.2 CDI, OM648.961 / OM648, 204 KM / 150 kW, 2002–2006
• Mercedes-Benz E-Class Station Wagon S211, 3.2 CDI, OM648.961 / OM648, 204 KM / 150 kW, 2003–2006
• Mercedes-Benz S-Class W220, 3.2 CDI, OM648, 204 KM / 150 kW, 2002–2006

Engine displacement: 3.2 (3222 cm³)

The vehicles listed above may have featured different variants of EGR valves. Please check the EGR valve carefully before purchasing a part.

Fits the intake manifold; OEM part numbers

• A6480900037

Description

Swirl flaps are components used in diesel engines whose primary function is to introduce turbulence into the airflow into the combustion chamber to improve combustion efficiency. Unfortunately, these vanes have many drawbacks. First, swirl vanes are a part of the engine that is subject to heavy wear and can fail. Their failure can lead to serious engine performance issues, such as a loss of power, noise, or vibrations.

Second, swirl flaps, even when open, significantly restrict airflow, which creates additional resistance and reduces combustion efficiency. In particular, when modifying an engine to increase power and torque, swirl flaps become a major limitation on engine performance.

Finally, swirl flaps are also expensive to repair or replace. Removing them and replacing them with plugs is a popular modification among automotive enthusiasts who want to boost their engine’s performance and avoid costly repairs.

Technical Specifications

• Blanking plug material: acid-resistant steel
• All plugs undergo specialized vibratory finishing. This process removes sharp edges and smooths the surface