Fitment CLS500 Base Sedan 4Door 2006 CLS55 AMG Base Sedan 4Door 2006 CLS550 Base Sedan 4Door 20072011 CLS63 AMG Base Sedan 4Door 20072011 E320 4Matic Sedan 4Door 20042005 For additional usage models, please refer to the product description section Precise Idle Speed Regulation This idle air control valve accurately adjusts airflow to stabilize engine idle speed. It prevents rough idling and stalling, ensuring smooth engine operation during stops and lowspeed driving for enhanced vehicle performance Reliable and Consistent Performance Designed for longlasting use, this idle speed control valve maintains stable functionality. It supports efficient engine management, contributing to smoother acceleration and improved fuel economy Compact and Easy Installation Featuring a streamlined design, this engine idle air valve fits neatly within the engine bay. It integrates seamlessly with other components, maintaining a clean and organised engine compartment without affecting other systems Use Scenarios Replacing a worn idle air control valve on the listed models to restore smooth, stable idle and prevent stalling at stops Regular maintenance to improve idle stability and fuel efficiency during stopandgo driving and lowspeed operation Engine repairs or tuneups on these models to ensure reliable idle control and seamless integration with existing systems