Part number 477820909 is a new, unused, Genuine Porsche a/c expansion valve. The A/C expansion valve regulates the flow of Freon plus it supports the process of Freon changing from liquid to a gas (by allowing the Freon to expand). As the Freon expands, it becomes cooler just as it enters your car's evaporator core and cools your car's interior (with the help of your interior fan). Most expansion vales fail due to clogging, causing it to stick in an open, closed or partially open position and must be replaced.
A DIY will go much smoother with the right parts. Genuine Porsche parts are known for precise engineering and fitment, which exactly what you can expect from every part online on FCP Euro.
FCP Euro is a leading online retailer of Original Equipment (OEM) and Genuine replacement parts for European cars. Starting as Volvo specialists in 1986, FCP Euro now offers coverage for all European makes including Volvo, BMW, Mercedes, Audi, Saab and VW.
FCP offers free shipping, unlimited returns, and lifetime warranty on all the products sold. If you need technical assistance, FCP has an in-house call center dedicated to answering any questions you may have about your repair or purchase.