Feature 1Applicable Model: Control valve is fit for Q7 3.6L 4.2L 20072010, fit for R8 All Models 20082012, fit for RS4 All Models 20072008, fit for S4 All Models 20042009, etc. 2Part Number: AC compressor control valve replace part number is ECV15 for reference. Please double check the part number of your item to ensure perfect fit. 3Accurate Control: Control valve adopts advanced electronic control technology, which enables high precision control, thus improving the air conditioning effect of the vehicle. 4Practical Parts: Control valve is to regulate the car air conditioning system cooling, heating components, it is controlled by electromagnetic force solenoid valve automatically open and close to change the compressor air flow. 5Stable Driving: Reliable control makes your vehicle more energy efficient and environmentally friendly, while improving driving efficiency and making your driving experience more comfortable.Item Type:ACCompressorElectronicControlValveMaterial: Metal, ABS .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Reference Part Number: ECV15Application:Controlvalveistoregulatethecarairconditioningsystemcooling,heatingcomponents,itiscontrolledbyelectromagneticforcesolenoidvalveautomaticallyopenandclosetochangethecompressorairflow,so that the air conditioner can be cooled normally.Applicable Compressor Model: for DENSO 7SEU17C, 7SEU16C, 6SEU14CApplicableModel:FitforQ73.6L4.2L20072010Fitfor R8AllModels20082012FitforRS4AllModels20072008Fitfor S4 All Models2004-2009Fitfor S6 All Models2007-2011Fitfor S8 All Models2007-2010Package List1 x ControlValveNote1.Please double check the part number of your item, matching information is for reference only.2.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!