Description
Intake manifold flap actuator by MERCEDES, catalog number 6421500594. Confirmed catalog fitment: Mercedes-Benz C-Class S203 (2001–2007), Mercedes-Benz C-Class S204 (2007–2014), Mercedes-Benz C-Class W203 (2000–2007), Mercedes-Benz C-Class W204 (2007–2014), Mercedes-Benz CLK A209 (2003+) and other body variants. For an accurate match, compare the number and identification with the removed part and confirm the vehicle specification by VIN. The fitment list is a reference and does not replace a vehicle-specific compatibility check.
INTAKE MANIFOLD FLAP ACTUATOR. The intake manifold flap actuator or control valve is designed to operate variable intake geometry systems such as IMRC, VIS or DISA, optimizing cylinder filling across different engine speed ranges. The unit controls internal intake manifold flaps that adjust runner length or airflow cross-section to improve low-end torque and high-speed power output while stabilizing air-fuel mixture formation. The actuator may be vacuum-operated with diaphragm control or electrically driven with integrated position sensor and reduction gear. Operation is controlled by the engine control unit based on RPM, load and temperature parameters. Proper function ensures improved acceleration response, fuel efficiency and emission compliance. Failure symptoms include loss of torque at specific RPM ranges, hesitation during acceleration, increased fuel consumption and intake system fault codes. Causes may involve carbon buildup, gear wear, vacuum leaks or electric motor failure. Our catalog includes genuine OEM actuators, certified aftermarket replacements and inspected used units without structural damage or excessive play. Used parts are tested for proper movement and electrical response. Selection is based on VIN number, engine type and part number. Adaptation or recalibration may be required after installation. Timely replacement restores optimal engine performance and intake efficiency.
Compatibility
Fits 27 vehicles
Nothing found
About the manufacturer · MERCEDES
Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the...
About the manufacturer · MERCEDES
Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the...
Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the brand is part of Mercedes‑Benz Group and is recognized globally as a leading manufacturer of passenger cars, commercial vehicles and genuine automotive spare parts. Under the Mercedes‑Benz brand a wide range of original components is produced for the company’s vehicles, including engine parts, cooling system components, suspension elements, braking systems, transmission components, electronic modules, body parts and various maintenance and service items. Genuine Mercedes‑Benz parts are designed according to strict factory engineering standards and undergo comprehensive quality control throughout the production process. This ensures precise fitment, reliable performance and full compatibility with the vehicles they are intended for. According to feedback from car owners and automotive repair professionals, Mercedes‑Benz genuine parts are highly regarded for their excellent build quality, long service life and dependable operation even under demanding driving conditions. Many users also highlight the perfect fit and ease of installation of original components. The most frequently mentioned drawback is the relatively high price compared with many aftermarket alternatives, although many vehicle owners consider the cost justified due to the durability, safety and preservation of the vehicle’s original factory performance.
Additional information
Intake manifold flap actuator by MERCEDES, catalog number 6421500594, is listed for vehicle repair or maintenance. The catalog identifies the item as “Intake manifold flap actuator”. Confirmed catalog fitment: Mercedes-Benz C-Class S203 (2001–2007), Mercedes-Benz C-Class S204 (2007–2014), Mercedes-Benz C-Class W203 (2000–2007), Mercedes-Benz C-Class W204 (2007–2014), Mercedes-Benz CLK A209 (2003+), Mercedes-Benz CLK C209 (2002–2009) and other body variants. Fitment is based on the catalog links between the part and vehicle bodies. It helps narrow the search, but final compatibility must be confirmed for the exact vehicle specification. The primary ordering references are part number 6421500594 and manufacturer MERCEDES. Parts can differ within the same vehicle model by production year, engine, transmission, installation side, or position. Before purchase, compare the number and identification with the removed component and verify body, year, and specification by VIN.
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