Part Number OE: This Runfider Valvetronic actuator is designed for BMW vehicles equipped with N20, N55, and S55 engines (2010-2016). It is a direct replacement for OE part numbers 11377603979, 11377599021, and VDO A2C5328032080, ensuring seamless integration with factory systems. Compatible with multiple models including X1, X3, X4, X5, 135i, 228i, 335i, 428i, 435i, 528i, 535i, 640i, and 740Li. Always verify your vehicle’s year, model, and engine type before purchase to ensure correct fitment. Construction:Manufactured with strict quality control, this actuator undergoes rigorous testing to meet performance standards. Each unit is pre-lubricated to reduce initial wear and enhance longevity. Note: Due to shipping conditions, lubricant may oxidize and darken—this does not affect functionality. Simply wipe off excess residue before installation. The durable internal components ensure reliable operation under normal driving conditions. About the product: If your BMW vehicle experiences symptoms such as unstable idling, engine stalling, engine malfunction light (EML) illumination, or difficulty starting, this replacement part can restore the correct valve mechanism adjustment to help resolve the above issues. This product complies with original factory specifications and design to ensure stable performance without modifying other vehicle functions. Installation: For optimal performance, we recommend professional installation by a qualified BMW technician. The Valvetronic system requires precise calibration, and improper installation may lead to operational issues. If you are unfamiliar with BMW engine components, consult a professional to avoid potential problems. Includes all necessary hardware for a secure fit. 1-Year Warranty & Reliable Support: We offer a 12-month warranty on our products. During this period, we provide product replacement or refund services for any issues that arise. Please carefully review the compatibility information for this product before purchase to ensure it is suitable for your vehicle model. Part Number OE: 11377603979 11377599021 VDO A2C5328032080 VDO A2C53280320 Valvetronic motor Please read the fitment model carefully, and double-check the fitment model, year, and OE of the product before purchasing to make sure that you get the right product!
Applicable models: Compatible with BMW (2010 2011 2012 2013 2014 2015 2016) N20 N55 S55 X1 X3 X4 X5 135i 228i 335i 428i 435i 528i 535i 640i 740Li
Product quality: We are a manufacturer with decades of production experience, we are committed to making the best products for customers, so we produce every product will go through layers of quality control, service life test, etc., in order to ensure that the product can be better used, we manually coated with lubricating oil for each product in the factory, which can make the product work better, and at the same time increase the service life of the product.
About the product: As the factory for the product coated with lubricant, after long-distance transportation, the product to your hands when the lubricant may be oxidized black, please do not worry, this is a normal phenomenon, direct use or wipe off and then use it, will not affect the use of the product.
Installation: It is recommended that you find a professional to install, if you do not have the relevant installation experience, try not to try to install yourself. When your car fails to start or stalls while driving, the engine shakes rapidly, the engine malfunction indicator light (EML) lights up and other problems, replacing this part can solve these problems.
Applicable models: Compatible with BMW (2010 2011 2012 2013 2014 2015 2016) N20 N55 S55 X1 X3 X4 X5 135i 228i 335i 428i 435i 528i 535i 640i 740Li
Product quality: We are a manufacturer with decades of production experience, we are committed to making the best products for customers, so we produce every product will go through layers of quality control, service life test, etc., in order to ensure that the product can be better used, we manually coated with lubricating oil for each product in the factory, which can make the product work better, and at the same time increase the service life of the product.
About the product: As the factory for the product coated with lubricant, after long-distance transportation, the product to your hands when the lubricant may be oxidized black, please do not worry, this is a normal phenomenon, direct use or wipe off and then use it, will not affect the use of the product.
Installation: It is recommended that you find a professional to install, if you do not have the relevant installation experience, try not to try to install yourself. When your car fails to start or stalls while driving, the engine shakes rapidly, the engine malfunction indicator light (EML) lights up and other problems, replacing this part can solve these problems.