Description
Intake manifold flap actuator by VAG, catalog number 03L129086. Confirmed catalog fitment: Volkswagen GOLF PLUS VI 521 (2009–2013), Volkswagen GOLF VI 5K1 (2008–2014), Volkswagen GOLF PLUS V 5M1, 521 (2004–2013), Volkswagen PASSAT CC B6 357 (2008–2012), Volkswagen PASSAT B6 3C2 (2005–2011) 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 6 vehicles
Nothing found
About the manufacturer · VAG
VAG is a commonly used abbreviation referring to the Volkswagen Group, one of the largest automotive manufacturers and component producers in the world. The group was founded in Germany and includes many well‑known autom...
About the manufacturer · VAG
VAG is a commonly used abbreviation referring to the Volkswagen Group, one of the largest automotive manufacturers and component producers in the world. The group was founded in Germany and includes many well‑known autom...
VAG is a commonly used abbreviation referring to the Volkswagen Group, one of the largest automotive manufacturers and component producers in the world. The group was founded in Germany and includes many well‑known automotive brands such as Volkswagen, Audi, Škoda, SEAT, Porsche, Bentley, Lamborghini and several others. In the automotive spare parts market the term VAG usually refers to genuine components designed for vehicles produced within the Volkswagen Group. The product range includes engine components, fuel injection system parts, turbochargers, transmission elements, suspension components, braking systems, electronic modules, sensors, cooling system parts and body components. Genuine VAG parts are developed according to unified engineering standards used across the Volkswagen Group and undergo strict quality control and testing for durability, reliability and safety. This ensures precise compatibility with vehicles of the group and stable operation of all vehicle systems. According to feedback from vehicle owners and automotive repair specialists, VAG genuine parts are known for their high manufacturing quality, strong reliability and long service life. Users frequently highlight precise fitment without the need for modifications and full compliance with factory specifications. The most commonly mentioned drawback is the relatively higher cost compared with many aftermarket alternatives, although many drivers consider original VAG parts the best option for maintaining vehicle reliability and factory performance.
Additional information
Intake manifold flap actuator by VAG, catalog number 03L129086, is listed for vehicle repair or maintenance. The catalog identifies the item as “Intake manifold flap actuator”. Confirmed catalog fitment: Volkswagen GOLF PLUS VI 521 (2009–2013), Volkswagen GOLF VI 5K1 (2008–2014), Volkswagen GOLF PLUS V 5M1, 521 (2004–2013), Volkswagen PASSAT CC B6 357 (2008–2012), Volkswagen PASSAT B6 3C2 (2005–2011), Volkswagen Tiguan I 5N1, 5N2 (2007–2018). 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 03L129086 and manufacturer VAG. 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. Also compare appearance, connectors, mountings, dimensions, and included items whenever those details are relevant to this part.
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