In Order to make sure you get the right item, please confirm your OEM NUMBERS match up with one of the Numbers in our description Application: for Audi A6 C5 1999-2006 for Audi Allroad Quattro Wagon (C5) 2001-2005 Reference OE/OEM Number: 4Z7 616 051 B,4Z7616051B, 4Z7 616 051 D,4Z7616051D, 4Z7616051D,4Z7413031A,4Z7616051B, 4Z7698507,4Z7616051,4Z7413031, Quantity : 1 Piece (Front Right or Left) Important: -2 Years Warranty -Designed for Comfort Suspension -These air suspension bags are aftermarket ones. -Instruction is not included. Professional installation is recommended, Q-Contact us please for whatever we can help